| 
 Especies avistadas  | 
| Especies ordenadas por ESPECIE | 
| Ord | ID | Especie | Familia | Nombre V | Taxon 1 | Taxon 2 | Taxon 3 | 
| 1 | 1 | Abutilon grandifolium | Malvaceae | malvavisco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 2 | 2 | Abutilon pauciflorum | Malvaceae | malvavisco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 3 | 3 | Abutilon pictum | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 4 | 4 | Acacia bonariensis | Fabaceae | ñapinday | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 5 | 5 | Acacia caven | Fabaceae | espinillo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 6 | 6 | Accipiter erythronemius | Accipitridae | esparvero común | Aves | Chordata | Animales | 
| 7 | 7 | Acer negundo | Aceraceae | arce | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 8 | 8 | Acer psuedo-platanus | Aceraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 9 | 9 | Achryrocline vauthieriana | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 10 | 10 | Achyrocline alata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 11 | 11 | Acmella decumbens | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 12 | 12 | Acremonium terricola | Hypocreaceae | Sordariomycetes | Ascomycota | Fungi | |
| 13 | 13 | Acridotheres cristatellus | Sturnidae | estornino crestado | Aves | Chordata | Animales | 
| 14 | 14 | Acromyrmex sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 15 | 15 | Actinote carycina | Nymphalidae | Perezosa amarilla | Lepidoptera | Arthropoda | Animales | 
| 16 | 16 | Actinote mamita | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 17 | 17 | Actinote pellenea | Nymphalidae | Perezosa común | Lepidoptera | Arthropoda | Animales | 
| 18 | 18 | Actinote pyrrha | Nymphalidae | Perezosa grande | Lepidoptera | Arthropoda | Animales | 
| 19 | 19 | Actitis macularia | Scolopacidae | playerito manchado | Aves | Chordata | Animales | 
| 20 | 20 | Adelpha syma | Nymphalidae | Almirante menor | Lepidoptera | Arthropoda | Animales | 
| 21 | 21 | Adelpha zea | Nymphalidae | Almirante blanca | Lepidoptera | Arthropoda | Animales | 
| 22 | 22 | Adesmia bicolor | Fabaceae | alverjilla | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 23 | 23 | Adiantopsis clorophyla | Pteridaceae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 24 | 24 | Aedeomyia squamipennis | Culicidae | Diptera | Arthropoda | Animales | |
| 25 | 25 | Aedes (Ochlerotatus) albifasciatus | Culicidae | Diptera | Arthropoda | Animales | |
| 26 | 26 | Aedes (Ochlerotatus) crinifer | Culicidae | Diptera | Arthropoda | Animales | |
| 27 | 27 | Aeromyrmex sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 28 | 28 | Aethus sp. | Cydnidae | Hemiptera | Arthropoda | Animales | |
| 29 | 29 | Agalenocosa cf singularis | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 30 | 30 | Agaricus sp. | Agaricaceae | Agaricomycotina | Basidiomycota | Fungi | |
| 31 | 31 | Agave americana var. marginata | Agavaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 32 | 32 | Agelaioides badius | Icteridae | tordo músico | Aves | Chordata | Animales | 
| 33 | 33 | Agelaius cyanopus | Icteridae | varillero negro | Aves | Chordata | Animales | 
| 34 | 34 | Agelaius ruficapillus | Icteridae | varillero congo | Aves | Chordata | Animales | 
| 35 | 35 | Agelaius thilius | Icteridae | varillero ala amarilla | Aves | Chordata | Animales | 
| 36 | 36 | Agelasticus cyanopus | Icteridae | varillero negro | Aves | Chordata | Animales | 
| 37 | 37 | Agraulis vanillae maculosa | Nymphalidae | espejitos | Lepidoptera | Arthropoda | Animales | 
| 38 | 38 | Agriornis microptera | Tyrannidae | gaucho común | Aves | Chordata | Animales | 
| 39 | 39 | Agrostis avenaceae | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 40 | 40 | Agrostis montevidensis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 41 | 41 | Ailanthus altissima | Simaroubaceae | árbol del cielo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 42 | 42 | Aimophila strigiceps | Emberizidae | cachilo corona castaña | Aves | Chordata | Animales | 
| 43 | 43 | Ajaia ajaja | Threskiornithidae | espátula rosada | Aves | Chordata | Animales | 
| 44 | 44 | Akodon azarae | Cricetidae | Mammalia | Chordata | Animales | |
| 45 | 45 | Allocosa sp | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 46 | 46 | Allocosinae sp | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 47 | 47 | Allophylus edulis | Sapindaceae | chal chal | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 48 | 48 | Alocasya odora | Araceae | oreja de elefante | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 49 | 49 | Aloe ciliaris | Liliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 50 | 50 | Alona sp. | Chydoridae | Crustacea | Arthropoda | Animales | |
| 51 | 51 | Alpaida gallardoi | Araneidae | Araneae | Arthropoda | Animales | |
| 52 | 52 | Alpaida rubellula | Araneidae | Araneae | Arthropoda | Animales | |
| 53 | 53 | Alternanthera philoxeroides | Amaranthaceae | lagunilla | Eudicotiledoneae | Angiospermae | Plantas verdes | 
| 54 | 54 | Alternanthera phyloxeroides | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 55 | 55 | Alternanthera pungens | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 56 | 56 | Alternaria alternata | Pleosporaceae | Dothideomycetes | Ascomycota | Fungi | |
| 57 | 57 | Althernanthera paronychiodes | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 58 | 58 | Amaranthus lividus L | Amaranthaceae | Eudicotiledoneae | Angiospermae | Plantas verdes | |
| 59 | 59 | Amaranthus quitensis | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 60 | 60 | Amaranthus viridis | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 61 | 61 | Amazona aestiva | Psittacidae | loro hablador | Aves | Chordata | Animales | 
| 62 | 62 | Amazonetta brasiliensis | Anatidae | pato cutiri | Aves | Chordata | Animales | 
| 63 | 63 | Amblyramphus holosericeus | Icteridae | federal | Aves | Chordata | Animales | 
| 64 | 64 | Ambrosia tenuifolia | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 65 | 65 | Ammi majus | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 66 | 66 | Ammodramus humeralis | Emberizidae | cachilo ceja amarilla | Aves | Chordata | Animales | 
| 67 | 67 | Amnestus sp. | Cydnidae | Hemiptera | Arthropoda | Animales | |
| 68 | 68 | Amorpha fruticosa | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 69 | 69 | Ampelopsis sp. | Vitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 70 | 70 | Amphisbaena sp. | Amphisbaenidae | Lepidosauria | Chordata | Animales | |
| 71 | 71 | Ampullaria insularum | Ampullariidae | Gastropoda | Mollusca | Animales | |
| 72 | 72 | Anagallis arvensis | Primulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 73 | 73 | Anairetes flavirostris | Tyrannidae | cachudito pico amarillo | Aves | Chordata | Animales | 
| 74 | 74 | Anas bahamensis | Anatidae | pato colorado | Aves | Chordata | Animales | 
| 75 | 1558 | Anas bahamensis | Antatidae | pato gargantilla | Aves | Chordata | Animales | 
| 76 | 75 | Anas cyanoptera | Anatidae | pato colorado | Aves | Chordata | Animales | 
| 77 | 76 | Anas flavirostris | Anatidae | pato barcino | Aves | Chordata | Animales | 
| 78 | 77 | Anas georgica | Anatidae | pato maicero | Aves | Chordata | Animales | 
| 79 | 78 | Anas platalea | Anatidae | pato cuchara | Aves | Chordata | Animales | 
| 80 | 1545 | Anas platyrhynchos | Anatidae | ánade real | Aves | Chordata | Animales | 
| 81 | 1539 | Anas platyrhynchos domesticus | Anatidae | pato Pekín | Aves | Chordata | Animales | 
| 82 | 79 | Anas sibilatrix | Anatidae | pato overo | Aves | Chordata | Animales | 
| 83 | 80 | Anas versicolor | Anatidae | pato capuchino | Aves | Chordata | Animales | 
| 84 | 81 | Ancyloxypha nitedula | Hesperiidae | Doradita rayada | Lepidoptera | Arthropoda | Animales | 
| 85 | 82 | Anhinga anhinga | Anhingidae | aninga | Aves | Chordata | Animales | 
| 86 | 83 | Anoda cristata | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 87 | 84 | Anopheles albitarsis | Culicidae | Diptera | Arthropoda | Animales | |
| 88 | 85 | Anopheles pictipennis | Culicidae | Diptera | Arthropoda | Animales | |
| 89 | 86 | Anredera cordifolia | Basellaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 90 | 87 | Anthomyia bruchi | Anthomyiidae | Diptera | Arthropoda | Animales | |
| 91 | 88 | Anthomyia punctipennis | Anthomyiidae | Diptera | Arthropoda | Animales | |
| 92 | 89 | Anthus correndera | Motacillidae | cachirla común | Aves | Chordata | Animales | 
| 93 | 90 | Anthus furcatus | Motacillidae | cachirla uña corta | Aves | Chordata | Animales | 
| 94 | 91 | Anumbius annumbi | Furnaridae | leñatero | Aves | Chordata | Animales | 
| 95 | 92 | Apis mellifera | Apidae | abeja doméstica | Hymenoptera | Arthropoda | Animales | 
| 96 | 93 | Apium leptophyllum | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 97 | 94 | Aplexa marmorata | Physidae | Gastropoda | Mollusca | Animales | |
| 98 | 95 | Arachosia praesignis | Anyphaenidae | Araneae | Arthropoda | Animales | |
| 99 | 96 | Aramides cajanea | Rallidae | chiricote | Aves | Chordata | Animales | 
| 100 | 1526 | Aramides ypecaha | Rallidae | ipacaá | Aves | Chordata | Animales | 
| 101 | 97 | Aramus guarauna | Aramidae | carau | Aves | Chordata | Animales | 
| 102 | 98 | Araneus lathyrinus | Araneidae | Araneae | Arthropoda | Animales | |
| 103 | 99 | Aratinga acuticaudata | Psittacidae | calancate común | Aves | Chordata | Animales | 
| 104 | 100 | Aratinga leucophtalmus | Psittacidae | calancate ala roja | Aves | Chordata | Animales | 
| 105 | 101 | Aratinga mitrata | Psittacidae | calancate cara roja | Aves | Chordata | Animales | 
| 106 | 102 | Araucaria bidwillii | Araucariaceae | araucaria | Coniferas | Coniferas | Plantas verdes | 
| 107 | 103 | Araujia angustifolia | Apocynaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 108 | 104 | Araujia sericifera | Apocynaceae | tasi | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 109 | 105 | Arctium minus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 110 | 245 | Ardea alba | Ardeidae | garza blanca | Aves | Chordata | Animales | 
| 111 | 106 | Ardea cocoi | Ardeidae | garza mora | Aves | Chordata | Animales | 
| 112 | 107 | Argutoridius bonariensis | Carabidae | Coleoptera | Arthropoda | Animales | |
| 113 | 108 | Argutoridius chilensis ardens | Carabidae | Coleoptera | Arthropoda | Animales | |
| 114 | 109 | Aricoris signata | Riodinidae | Hormiguera común | Lepidoptera | Arthropoda | Animales | 
| 115 | 110 | Aristolochia elegans | Aristolochiaceae | Magnoliidae | Angiospermae | Plantas verdes | |
| 116 | 111 | Aristolochia fimbriata | Aristolochiaceae | Magnoliidae | Angiospermae | Plantas verdes | |
| 117 | 112 | Aristolochia macroura | Aristolochiaceae | Magnoliidae | Angiospermae | Plantas verdes | |
| 118 | 113 | Armadillidium sp. | Armadillidiidae | bicho bolita | Crustacea | Arthropoda | Animales | 
| 119 | 114 | Artemisia annua | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 120 | 115 | Arthrinium urticae | Apiosporaceae | Sordariomycetes | Ascomycota | Fungi | |
| 121 | 116 | Arthrobotrys oligospora | Orbiliaceeae | Orbiliomycetes | Ascomycota | Fungi | |
| 122 | 117 | Arum italicum | Araceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 123 | 118 | Arundo donax | Poaceae | caña de castilla | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 124 | 119 | Ascalapha odorata | Noctuidae | mariposa fantasma | Lepidóptera | Arthropoda | Animales | 
| 125 | 120 | Ascia monuste automate | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 126 | 121 | Asclepias curassavica | Apocynaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 127 | 122 | Asclepias mellodora | Apocynaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 128 | 123 | Asio clamator | Strigidae | lechuzón orejudo | Aves | Chordata | Animales | 
| 129 | 124 | Asio flammeus | Strigidae | lechuzón de campo | Aves | Chordata | Animales | 
| 130 | 125 | Asolene platae | Ampullariidae | Gastropoda | Mollusca | Animales | |
| 131 | 126 | Aspergillus niger | Trichocomaceae | Eurotiomycetes | Ascomycota | Fungi | |
| 132 | 127 | Aspergillus terreus | Trichocomaceae | Eurotiomycetes | Ascomycota | Fungi | |
| 133 | 128 | Aspidobothrus rufiseps | Miridae | Hemiptera | Arthropoda | Animales | |
| 134 | 129 | Aspidoglossa intermedia | Carabidae | Coleoptera | Arthropoda | Animales | |
| 135 | 130 | Aspilla pascalioides | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 136 | 131 | Asplachnopus girodi | Asplanchnidae | Ploima | Rotifera | Animales | |
| 137 | 132 | Aster squamatus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 138 | 133 | Asthenes baeri | Furnaridae | canastero chaqueño | Aves | Chordata | Animales | 
| 139 | 134 | Asthenes hudsoni | Furnaridae | espartillero pampeano | Aves | Chordata | Animales | 
| 140 | 135 | Asthenes pyrrholeuca | Furnaridae | canastero coludo | Aves | Chordata | Animales | 
| 141 | 136 | Asthenoctenus borellii | Ctenidae | Araneae | Arthropoda | Animales | |
| 142 | 137 | Athene cunicularia | Strigidae | lechucita vizcachera | Aves | Chordata | Animales | 
| 143 | 138 | Atlapetes citrinellus | Emberizidae | cerquero amarillo | Aves | Chordata | Animales | 
| 144 | 139 | Atrachelus cinereus | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 145 | 140 | Audre epulus strigata | Riodinidae | Lepidoptera | Arthropoda | Animales | |
| 146 | 141 | Augochlora amphitrite | Halictidae | Hymenoptera | Arthropoda | Animales | |
| 147 | 142 | Augochlora phoemonoe | Halictidae | Hymenoptera | Arthropoda | Animales | |
| 148 | 143 | Augochlora semiramis | Halictidae | Hymenoptera | Arthropoda | Animales | |
| 149 | 144 | Auricularia sp. | Auriculariaceae | Agaricomycotina | Basidicomycota | Fungi | |
| 150 | 145 | Australoheros facetus | Cichlidae | Actinopterygii | Chordata | Animales | |
| 151 | 146 | Automeris naranja | Saturniidae | Lepidoptera | Arthropoda | Animales | |
| 152 | 147 | Avena sativa | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 153 | 148 | Avena sterilis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 154 | 149 | Azolla filiculoides | Azollaceae | helechito de agua | Polypodiidae | Polypodiopsida | Plantas verdes | 
| 155 | 150 | Baccharis articulata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 156 | 151 | Baccharis cylindrica | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 157 | 152 | Baccharis juncea | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 158 | 153 | Baccharis notosergila | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 159 | 154 | Baccharis pingraea | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 160 | 155 | Baccharis punctulata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 161 | 156 | Baccharis salicifolia | Asteraceae | chilca | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 162 | 157 | Baccharis trimera | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 163 | 158 | Bacopa monnieri | Scrophulariaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 164 | 159 | Badumna longinqua | Desidae | Araneae | Arthropoda | Animales | |
| 165 | 160 | Ballota nigra | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 166 | 161 | Basileuterus culicivorus | Parulidae | arañero coronado chico | Aves | Chordata | Animales | 
| 167 | 162 | Battus polydamas | Papilionidae | Lepidoptera | Arthropoda | Animales | |
| 168 | 163 | Bauhinia forficata subsp. pruinosa | Fabaceae | pezuña de vaca | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 169 | 164 | Belostoma elegans | Belostomatidae | Hemiptera | Arthropoda | Animales | |
| 170 | 165 | Belostoma oxyurum | Belostomatidae | Hemiptera | Arthropoda | Animales | |
| 171 | 166 | Bembidion (Notaphus) laticollis | Carabidae | Coleoptera | Arthropoda | Animales | |
| 172 | 167 | Berosus sp. | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 173 | 168 | Biblis hyperia nectanabis | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 174 | 169 | Bidens laevis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 175 | 170 | Bidens pilosa | Asteraceae | amor seco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 176 | 171 | Bidens subalternans | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 177 | 172 | Biomphalaria tenagophila | Planorbidae | Gastropoda | Mollusca | Animales | |
| 178 | 173 | Blechnum australe auriculatum | Blechnaceae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 179 | 174 | Blepharocalyx salicifolius | Myrtaceae | anacahuita | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 180 | 175 | Bolboschoenus (Scirpus) robustus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 181 | 176 | Bombus atratus | Apidae | Abejorro bombardero | Hymenoptera | Arthropoda | Animales | 
| 182 | 177 | Botaurus pinnatus | Ardeidae | mirasol grande | Aves | Chordata | Animales | 
| 183 | 178 | Bothrops alternatus | Viperidae | yarará grande | Lepidosauria | Chordata | Animales | 
| 184 | 179 | Botriochloa laguroides | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 185 | 180 | Bowlesia incana | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 186 | 181 | Brachiaria extensa | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 187 | 182 | Brachinus pallipes | Carabidae | Coleoptera | Arthropoda | Animales | |
| 188 | 183 | Brachinus sp. | Carabidae | Coleoptera | Arthropoda | Animales | |
| 189 | 184 | Brachionus sp. | Brachionidae | Ploima | Rotifera | Animales | |
| 190 | 185 | Brachyvatus acuminatus | Noteridae | Coleoptera | Arthropoda | Animales | |
| 191 | 186 | Brachyvatus sp. | Dytiscidae | Diptera | Arthropoda | Animales | |
| 192 | 187 | Bradycellus debilis | Carabidae | Coleoptera | Arthropoda | Animales | |
| 193 | 188 | Bradycellus dimidiatus | Carabidae | Coleoptera | Arthropoda | Animales | |
| 194 | 189 | Brassica campestris | Brassicaceae | nabiza | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 195 | 190 | Breda bistriata | Salticidae | araña saltadora | Araneae | Arthropoda | Animales | 
| 196 | 191 | Briza minor | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 197 | 192 | Briza subaristata | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 198 | 193 | Bromus catharticus | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 199 | 194 | Bromus unioloides | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 200 | 195 | Brontaea delecta | Muscidae | Diptera | Arthropoda | Animales | |
| 201 | 196 | Brotogeris chiriri | Psittacidae | catita chirirí | Aves | Chordata | Animales | 
| 202 | 197 | Bubo virginianus | Strigidae | ñacurutú | Aves | Chordata | Animales | 
| 203 | 198 | Bubulcus ibis | Ardeidae | garcita bueyera | Aves | Chordata | Animales | 
| 204 | 199 | Buchananiella sp. | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 205 | 200 | Buenoa sp. | Netonectidae | Hemiptera | Arthropoda | Animales | |
| 206 | 201 | Bufo paracnemis | Bufonidae | Anura | Chordata | Animales | |
| 207 | 202 | Buteo albicaudatus | Accipitridae | aguilucho alas largas | Aves | Chordata | Animales | 
| 208 | 203 | Buteo magnirostris | Accipitridae | taguató común | Aves | Chordata | Animales | 
| 209 | 204 | Buteo swainsoni | Accipitridae | aguilucho langostero | Aves | Chordata | Animales | 
| 210 | 205 | Buteogallus urubitinga | Accipitridae | aguila negra | Aves | Chordata | Animales | 
| 211 | 206 | Butorides striatus | Ardeidae | garcita azulada | Aves | Chordata | Animales | 
| 212 | 207 | Cacicus solitarius | Icteridae | boyero negro | Aves | Chordata | Animales | 
| 213 | 208 | Cacoscelis nigripes | Chrysomelidae | Coleoptera | Arthropoda | Animales | |
| 214 | 209 | Caesalpinia gilliesii | Fabaceae | barba de chivo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 215 | 210 | Calidris alba | Scolopacidae | playerito blanco | Aves | Chordata | Animales | 
| 216 | 211 | Calidris bairdii | Scolopacidae | playerito unicolor | Aves | Chordata | Animales | 
| 217 | 212 | Calidris fuscicollis | Scolopacidae | playerito rabadilla blanca | Aves | Chordata | Animales | 
| 218 | 213 | Calidris melanotos | Scolopacidae | playerito pectoral | Aves | Chordata | Animales | 
| 219 | 214 | Calliphora nigribasis | Calliphoridae | Diptera | Arthropoda | Animales | |
| 220 | 215 | Calliphora vicina | Calliphoridae | Mosca azul | Diptera | Arthropoda | Animales | 
| 221 | 216 | Callonetta leucophrys | Anatidae | pato de collar | Aves | Chordata | Animales | 
| 222 | 217 | Calomys musculinus | Cricetidae | Mammalia | Chordata | Animales | |
| 223 | 218 | Calpodes ethlius | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 224 | 219 | Calycopis caulonia | Lycaenidae | Lepidoptera | Arthropoda | Animales | |
| 225 | 220 | Calyptocarpus biariastatus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 226 | 221 | Calystegia sepium | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 227 | 222 | Calystegia sepium var. americana | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 228 | 223 | Camillina chilensis | Gnaphosidae | Araneae | Arthropoda | Animales | |
| 229 | 224 | Camponotus mus | Formicidae | hormiga carpintera | Hymenoptera | Arthropoda | Animales | 
| 230 | 225 | Camptostoma obsoletum | Tyrannidae | piojito silbón | Aves | Chordata | Animales | 
| 231 | 226 | Campyloneuropsis cincticornis | Miridae | Hemiptera | Arthropoda | Animales | |
| 232 | 227 | Canna indica | Cannaceae | achira roja | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 233 | 228 | Caprimulgus longirostris | Caprimulgidae | atajacaminos ñañarca | Aves | Chordata | Animales | 
| 234 | 229 | Caprimulgus parvulus | Caprimulgidae | atajacaminos chico | Aves | Chordata | Animales | 
| 235 | 230 | Capsella bursa-pastoris | Brassicaceae | bolsa de pastor | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 236 | 231 | Caracara plancus | Falconidae | carancho | Aves | Chordata | Animales | 
| 237 | 232 | Cardamine bonariensis | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 238 | 233 | Cardamine hirsuta | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 239 | 234 | Cardiastethus sp. | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 240 | 235 | Cardiospermun grandiflorum | Sapindaceae | globito cipó | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 241 | 236 | Carduelis carduelis | Fringillidae | cardelino | Aves | Chordata | Animales | 
| 242 | 237 | Carduelis magellanica | Fringillidae | cabecitanegra común | Aves | Chordata | Animales | 
| 243 | 238 | Carduus acanthoides | Asteraceae | cardo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 244 | 239 | Caretta caretta | Cheloniidae | Chelonii | Chordata | Animales | |
| 245 | 240 | Carex divulsa | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 246 | 241 | Carex extensa var. vixdentata | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 247 | 242 | Carex pseudocyperus v. polysticha | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 248 | 243 | Carex riparia | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 249 | 244 | Carex virescens | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 250 | 246 | Castianeira sp. | Corinnidae | Araneae | Arthropoda | Animales | |
| 251 | 247 | Cathartes aura | Cathartidae | jote cabeza colorada | Aves | Chordata | Animales | 
| 252 | 248 | Cavia aperea pamparum | Caviidae | cuis | Mammalia | Chordata | Animales | 
| 253 | 249 | Cayaponia bonariensis | Cucurbitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 254 | 250 | Cayaponia podantha | Cucurbitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 255 | 251 | Ceiba insignis | Bombacaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 256 | 252 | Celina sp | Noteridae | Coleoptera | Arthropoda | Animales | |
| 257 | 253 | Celtis australis | Celtidaceae | almez | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 258 | 254 | Celtis ehrenbergiana | Celtidaceae | tala | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 259 | 255 | Celtis iguanaea | Celtidaceae | tala gateador | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 260 | 256 | Centaurium pulchellum | Gentianaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 261 | 257 | Cephisus siccifolius | Cicadidae | Hemiptera | Arthropoda | Animales | |
| 262 | 258 | Cerastium glomeratum | Caryophyllaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 263 | 259 | Ceratocapsus sp. | Miridae | Hemiptera | Arthropoda | Animales | |
| 264 | 260 | Ceratophrys ornata | Ceratophryinae | Anura | Chordata | Animales | |
| 265 | 261 | Ceriodaphnia sp. | Daphniidae | Crustacea | Arthropoda | Animales | |
| 266 | 262 | Certhiaxis cinnamomea | Furnaridae | curutié colorado | Aves | Chordata | Animales | 
| 267 | 263 | Cestrum euanthes | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 268 | 264 | Cestrum parqui | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 269 | 265 | cf. Colaspis | Chrysomelidae | Coleoptera | Arthropoda | Animales | |
| 270 | 266 | cf.Euophrys melanoleucus | Salticidae | araña saltadora | Araneae | Arthropoda | Animales | 
| 271 | 267 | cf.Meriola hyltonae | Corinnidae | Araneae | Arthropoda | Animales | |
| 272 | 268 | cf.Oonops | Oonopidae | Araneae | Arthropoda | Animales | |
| 273 | 269 | cf.Trochosa | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 274 | 270 | Chaetomium globosum | Chaetomiaceae | Sordariomycetes | Ascomycota | Fungi | |
| 275 | 271 | Chaetotropis chilensis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 276 | 272 | Chalcolepidius limbatus | Elateridae | Diptera | Arthropoda | Animales | |
| 277 | 273 | Charadrius collaris | Charadriidae | chorlito de collar | Aves | Chordata | Animales | 
| 278 | 274 | Charadrius falklandicus | Charadriidae | chorlito doble collar | Aves | Chordata | Animales | 
| 279 | 275 | Charadrius modestus | Charadriidae | chorlito pecho canela | Aves | Chordata | Animales | 
| 280 | 276 | Chauna torquata | Anhimidae | chajá | Aves | Chordata | Animales | 
| 281 | 277 | Chenopodium album | Chenopodiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 282 | 278 | Chenopodium ambrosioides | Chenopodiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 283 | 279 | Chenopodium hircinum | Chenopodiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 284 | 280 | Chenopodium murale | Chenopodiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 285 | 281 | Chenopodium pratericola | Chenopodiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 286 | 282 | Chenopodium pumilio | Chenopodiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 287 | 283 | Chinavia sp. | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 288 | 284 | Chiomara asychis autander | Hesperiidae | Emparchada | Lepidoptera | Arthropoda | Animales | 
| 289 | 285 | Chlidonias niger | Laridae | gaviotín negro | Aves | Chordata | Animales | 
| 290 | 286 | Chloroceryle amazona | Alcedinidae | martín pescador mediano | Aves | Chordata | Animales | 
| 291 | 287 | Chloroceryle americana | Alcedinidae | martín pescador chico | Aves | Chordata | Animales | 
| 292 | 288 | Chlorophytum comosum | Liliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 293 | 289 | Chlorostilbon aureoventris | Trochilidae | picaflor común | Aves | Chordata | Animales | 
| 294 | 290 | Chordeiles minor | Caprimulgidae | añapero boreal | Aves | Chordata | Animales | 
| 295 | 291 | Chorisia speciosa | Bombacaceae | palo borracho | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 296 | 292 | Chrisanthemum leucanthemus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 297 | 293 | Chrysomya albiceps | Calliphoridae | Diptera | Arthropoda | Animales | |
| 298 | 294 | Chrysomya megacephala | Calliphoridae | Diptera | Arthropoda | Animales | |
| 299 | 295 | Cichorium intybus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 300 | 296 | Cinamomum camphora | Lauraceae | alcanfor | Magnoliidae | Angiospermae | Plantas verdes | 
| 301 | 297 | Cinclodes fuscus | Furnaridae | remolinera común | Aves | Chordata | Animales | 
| 302 | 298 | Cinnamomum porphyrium | Lauraceae | Magnoliidae | Angiospermae | Plantas verdes | |
| 303 | 299 | Circus buffoni | Accipitridae | gavilán planeador | Aves | Chordata | Animales | 
| 304 | 300 | Circus cinereus | Accipitridae | gavilán ceniciento | Aves | Chordata | Animales | 
| 305 | 301 | Cirsium vulgare | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 306 | 302 | Cissus palmata | Vitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 307 | 303 | Cissus verticillata | Vitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 308 | 304 | Cistalia signoreti | Rhyparochromidae | Hmiptera | Arthropoda | Animales | |
| 309 | 305 | Cistalia sp | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 310 | 306 | Citharexylum montevidense | Verbenaceae | tarumá | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 311 | 307 | Citrus sp. | Rutaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 312 | 308 | Cladosporium spongiosum | Mycosphaerellaceae | Dothideomycetes | Ascomycota | Fungi | |
| 313 | 309 | Clelia rustica | Colubridae | Lepidosauria | Chordata | Animales | |
| 314 | 310 | Clematis montevidensis | Ranunculaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 315 | 311 | Clivina (Semiclivina) vespertina | Carabidae | Coleoptera | Arthropoda | Animales | |
| 316 | 312 | Cloris gayana | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 317 | 313 | Cnesterodon decemmaculatus | Poeciliidae | Actinopterygii | Chordata | Animales | |
| 318 | 314 | Cocculus laurifolius | Menispermaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 319 | 315 | Coccyzus cinereus | Cuculidae | cuclillo chico | Aves | Chordata | Animales | 
| 320 | 316 | Coccyzus melacoryphus | Cuculidae | cuclillo canela | Aves | Chordata | Animales | 
| 321 | 317 | Cochliomyia hominivorax | Calliphoridae | Diptera | Arthropoda | Animales | |
| 322 | 318 | Cochliomyia macellaria | Calliphoridae | Diptera | Arthropoda | Animales | |
| 323 | 319 | Colaptes campestris | Picidae | carpintero campestre | Aves | Chordata | Animales | 
| 324 | 320 | Colaptes melanolaimus | Picidae | carpintero real | Aves | Chordata | Animales | 
| 325 | 321 | Coleosoma acutiventer | Theridiidae | Araneae | Arthropoda | Animales | |
| 326 | 322 | Colias lesbia | Pieridae | Isoca de la alfalfa | Lepidoptera | Arthropoda | Animales | 
| 327 | 323 | Colias lesbia heliceoides | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 328 | 324 | Collaria scenica | Miridae | Hemiptera | Arthropoda | Animales | |
| 329 | 325 | Columba livia | Columbidae | paloma casera | Aves | Chordata | Animales | 
| 330 | 326 | Columba maculosa | Columbidae | paloma manchada | Aves | Chordata | Animales | 
| 331 | 327 | Columba picazuro | Columbidae | paloma picazuró | Aves | Chordata | Animales | 
| 332 | 328 | Columbina picui | Columbidae | torcacita común | Aves | Chordata | Animales | 
| 333 | 329 | Columbina talpacoti | Columbidae | torcacita colorada | Aves | Chordata | Animales | 
| 334 | 330 | Commelina erecta | Commelinaceae | flor de Santa Lucía | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 335 | 1551 | Conirostrum speciosum | Thraupidae | saí común | Aves | Chordata | Animales | 
| 336 | 331 | Conium maculatum | Apiaceae | cicuta | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 337 | 332 | Convolvulus arvensis | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 338 | 333 | Convolvulus hermanniae | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 339 | 334 | Conyza bonariensis var. microcephala | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 340 | 335 | Conyza primulifolia (= C. chilensis) | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 341 | 336 | Copelatus sp. | Dytiscidae | Diptera | Arthropoda | Animales | |
| 342 | 337 | Coprinus comatus | Agaricaceae | Agaromicotyna | Basidiomycota | Fungi | |
| 343 | 338 | Coragyps atratus | Cathartidae | jote cabeza negra | Aves | Chordata | Animales | 
| 344 | 339 | Corbicula fluminea | Corbiculidae | Bivalvia | Mollusca | Animales | |
| 345 | 340 | Coriandrum sativum L. | Apiaceae | coriandro cilandro | Eudicotiledoneae | Angiospermae | Plantas verdes | 
| 346 | 341 | Corinnidae sp 1 | Corinnidae | Araneae | Arthropoda | Animales | |
| 347 | 342 | Corixidea sp. | Schizopteridae | Hemiptera | Arthropoda | Animales | |
| 348 | 343 | Corizus pictipes | Rohpalidae | Hemiptera | Arthropoda | Animales | |
| 349 | 344 | Coronopus didymus | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 350 | 345 | Cortaderia selloana | Poaceae | cortadera | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 351 | 346 | Coryphospingus cucullatus | Emberizidae | brasita de fuego | Aves | Chordata | Animales | 
| 352 | 347 | Corythaica sp | Tingidae | Hemiptera | Arthropoda | Animales | |
| 353 | 348 | Coscoroba coscoroba | Anatidae | coscoroba | Aves | Chordata | Animales | 
| 354 | 349 | Cotoneaster glaucophyllus | Rosaceae | cotoneaster | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 355 | 350 | Cotula australis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 356 | 351 | Cranioleuca sulphurifera | Furnaridae | curutié ocráceo | Aves | Chordata | Animales | 
| 357 | 352 | Crotophaga ani | Cuculidae | anó chico | Aves | Chordata | Animales | 
| 358 | 353 | Crotophaga major | Cuculidae | anó grande | Aves | Chordata | Animales | 
| 359 | 354 | Cryphula australis | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 360 | 355 | Cucurbita sp. | Cucurbitaceae | zapallo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 361 | 356 | Culex acharistus | Culicidae | Diptera | Arthropoda | Animales | |
| 362 | 357 | Culex bidens | Culicidae | Diptera | Arthropoda | Animales | |
| 363 | 358 | Culex brethesi | Culicidae | Diptera | Arthropoda | Animales | |
| 364 | 359 | Culex chidesteri | Culicidae | Diptera | Arthropoda | Animales | |
| 365 | 360 | Culex dolosus | Culicidae | Diptera | Arthropoda | Animales | |
| 366 | 361 | Culex eduardoi | Culicidae | Diptera | Arthropoda | Animales | |
| 367 | 362 | Culex maxi | Culicidae | Diptera | Arthropoda | Animales | |
| 368 | 363 | Culex pipiens | Culicidae | Diptera | Arthropoda | Animales | |
| 369 | 364 | Culex saltanensis | Culicidae | Diptera | Arthropoda | Animales | |
| 370 | 365 | Culex tatoi | Culicidae | Diptera | Arthropoda | Animales | |
| 371 | 366 | Cuphea fruticosa | Lythraceae | siete sangrías | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 372 | 367 | Curicta bonaerensis | Nepidae | Hemiptera | Arthropoda | Animales | |
| 373 | 368 | Curvularia clavata | Pleosporaceae | Dothideomycetes | Ascomycota | Fungi | |
| 374 | 369 | Curvularia lunata | Pleosporaceae | Dothideomycetes | Ascomycota | Fungi | |
| 375 | 370 | Cyanocompsa brissonii | Emberizidae | reinamora grande | Aves | Chordata | Animales | 
| 376 | 371 | Cyanocorax chrysops | Corvidae | urraca común | Aves | Chordata | Animales | 
| 377 | 372 | Cyanoliseus patagonus | Psittacidae | loro barranquero | Aves | Chordata | Animales | 
| 378 | 373 | Cyanoloxia glaucocaerulea | Emberizidae | reinamora chica | Aves | Chordata | Animales | 
| 379 | 374 | Cyanophrys remus | Lycaenidae | Lepidoptera | Arthropoda | Animales | |
| 380 | 375 | Cyclanthera hystrix | Cucurbitaceae | pepino erizo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 381 | 376 | Cyclarhis gujanensis | Vireonidae | juan chiviro | Aves | Chordata | Animales | 
| 382 | 377 | Cyclocephala sp. | Scarabaeidae | Coleoptera | Arthropoda | Animales | |
| 383 | 378 | Cyclopogon elatus | Orchidaceae | orquídea | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 384 | 379 | Cyclospermum leptophyllum | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 385 | 380 | Cyclotella sp. | Thalassiosirales | Diatomeas | Stramenopiles | ||
| 386 | 381 | Cydamus zeleripes | Alydidae | Hemiptera | Arthropoda | Animales | |
| 387 | 382 | Cygnus melancoryphus | Anatidae | cisne de cuello negro | Aves | Chordata | Animales | 
| 388 | 383 | Cylindrocarpon heteronema | Nectriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 389 | 384 | Cymaenes gisca | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 390 | 385 | Cymaenes odilia | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 391 | 386 | Cymaenes tripunctata | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 392 | 387 | Cymbella sp. | Bacillariophycidae | Bacillariophytina | Diatomeas | Stramenopiles | |
| 393 | 388 | Cymodema breviceps | Lygaidae | Hemiptera | Arthropoda | Animales | |
| 394 | 389 | Cynara cardunculus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 395 | 390 | Cynodon dactylon | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 396 | 391 | Cypella herbertti | Iridaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 397 | 392 | Cyperus alternifolius | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 398 | 393 | Cyperus digitatus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 399 | 394 | Cyperus eragrostis | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 400 | 395 | Cyperus giganteus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 401 | 396 | Cyperus prolixus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 402 | 397 | Cyperus rotundus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 403 | 398 | Cyperus virens | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 404 | 399 | Cyphocharax voga | Curimatidae | sabalito | Actinopterygii | Chordata | Animales | 
| 405 | 400 | Cyphomyrmex sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 406 | 401 | Cyrtomenus mirabilis | Cydnidae | Hemiptera | Arthropoda | Animales | |
| 407 | 402 | Cyrtomium falcatum | Dryopteridaceae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 408 | 403 | Dagbertus bonariensis | Miridae | Hemiptera | Arthropoda | Animales | |
| 409 | 404 | Danaus eresimus plexaure | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 410 | 405 | Danaus erippus | Nymphalidae | monarca | Lepidoptera | Arthropoda | Animales | 
| 411 | 406 | Daphnia sp. | Daphniidae | Crustacea | Arthropoda | Animales | |
| 412 | 407 | Datura ferox | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 413 | 408 | Delia platura | Anthomyiidae | Diptera | Arthropoda | Animales | |
| 414 | 409 | Deltamys kempi | Cricetidae | Mammalia | Chordata | Animales | |
| 415 | 1555 | Dendrocygna autumnalis | Anatidae | sirirí vientre negro | Aves | Chordata | Animales | 
| 416 | 410 | Dendrocygna bicolor | Anatidae | sirirí colorado | Aves | Chordata | Animales | 
| 417 | 411 | Dendrocygna viduata | Anatidae | sirirí pampa | Aves | Chordata | Animales | 
| 418 | 412 | Dendropsophus nanus | Hylidae | Anura | Chordata | Animales | |
| 419 | 413 | Dendryphantes sp. | Salticidae | Araneae | Arthropoda | Animales | |
| 420 | 414 | Derallus paranensis | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 421 | 415 | Dero sp. | Naididae | Oligochaeta | Annelida | Animales | |
| 422 | 416 | Derophthalma sp. | Miridae | Hemiptera | Arthropoda | Animales | |
| 423 | 417 | Desmopachria (Desmopachria) sp. | Dytiscidae | Diptera | Arthropoda | Animales | |
| 424 | 418 | Desmopachria (Nectoserrula) sp. | Dytiscidae | Diptera | Arthropoda | Animales | |
| 425 | 419 | Deyeuxia viridiflavescens | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 426 | 1528 | Diabrotica speciosa | Chrysomelidae | Vaquita verde seis pintas amarillas | Coleoptera | Arthropoda | Animales | 
| 427 | 420 | Diaditus sp. | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 428 | 421 | Diapontia uruguayensis | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 429 | 422 | Dichelops furcatus | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 430 | 423 | Dichondra microcalyx | Convolvulaceae | oreja de ratón | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 431 | 424 | Dicliptera tweediana | Acanthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 432 | 425 | Didelphis albiventris | Didelphidae | comadreja overa | Mammalia | Chordata | Animales | 
| 433 | 1532 | Diloboderus abderus | Scarabaeidae | Cascarudo torito | Coleoptera | Arthropoda | Animales | 
| 434 | 426 | Dilophus pectoralis | Bibionidae | Diptera | Arthropoda | Animales | |
| 435 | 1541 | Dione moneta | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 436 | 427 | Diplachame uninervia | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 437 | 428 | Diplotaxis tenuifolia | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 438 | 429 | Dipoena cf atlantica | Theridiidae | Araneae | Arthropoda | Animales | |
| 439 | 430 | Dipoena granulata | Theridiidae | Araneae | Arthtropoda | Animales | |
| 440 | 431 | Dipoena pumicata | Theridiidae | Araneae | Arthropoda | Animales | |
| 441 | 432 | Dipoena sp1 | Theridiidae | Araneae | Arthropoda | Animales | |
| 442 | 433 | Dipsacus fullonum | Dipsacaceae | carda | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 443 | 1543 | Dives warszewiczi | Icteridae | tordo de matorral | Aves | Chordata | Animales | 
| 444 | 434 | Dodonaea viscosa | Sapindaceae | chirca | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 445 | 435 | Doeringiella nobilis | Apidae | Hymenoptera | Artropoda | Animales | |
| 446 | 436 | Dolichandra cynanchoides | Bignoniaceae | sachaguasca | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 447 | 437 | Dolichonix oryzivorus | Icteridae | charlatán | Aves | Chordata | Animales | 
| 448 | 438 | Donacospiza albifrons | Emberizidae | cachilo canela | Aves | Chordata | Animales | 
| 449 | 439 | Doxocopa laurentia | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 450 | 440 | Dryas iulia alcionea | Nymphalidae | Julia | Lepidoptera | Arthropoda | Animales | 
| 451 | 441 | Dubiaranea difficilis | Linyphiidae | Araneae | Arthropoda | Animales | |
| 452 | 442 | Duranta erecta | Verbenacecae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 453 | 443 | Dysdera crocata | Dysderidae | Araneae | Arthropoda | Animales | |
| 454 | 444 | Dysdercus albifasciatus | Pyrrhocoridae | Hemiptera | Arthropoda | Animales | |
| 455 | 445 | Echinochloa colonum | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 456 | 446 | Echinochloa crusgalli | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 457 | 447 | Echinochloa cruspavonis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 458 | 448 | Echinochloa elodes | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 459 | 449 | Echinochloa polystachya | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 460 | 450 | Echinodorus grandiflorus | Alismataceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 461 | 451 | Echium plantagineum | Boraginaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 462 | 452 | Eclipta alba | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 463 | 453 | Eclipta prostrata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 464 | 454 | Edessa meditabunda | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 465 | 455 | Egretta thula | Ardeidae | garcita blanca | Aves | Chordata | Animales | 
| 466 | 456 | Eichhornia azurea | Pontederiaceae | camalote | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 467 | 457 | Eichhornia crassipes | Pontederiaceae | camalote | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 468 | 458 | Eidmannella pallida | Nesticidae | Araneae | Arthropoda | Animales | |
| 469 | 459 | Eilica modesta | Gnaphosidae | Araneae | Arthropoda | Animales | |
| 470 | 460 | Elaenia albiceps | tyrannidae | fiofío silbón | Aves | Chordata | Animales | 
| 471 | 461 | Elaenia parvirostris | Tyrannidae | fiofïo pico corto | Aves | Chordata | Animales | 
| 472 | 462 | Elaenia spectabilis | Tyrannidae | fiofío grande | Aves | Chordata | Animales | 
| 473 | 463 | Elanus leucurus | Accipitridae | milano blanco | Aves | Chordata | Animales | 
| 474 | 464 | Eleocharis bonariensis | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 475 | 465 | Eleocharis nodulosa | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 476 | 466 | Eleocharis viridans | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 477 | 467 | Eleusine indica | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 478 | 468 | Eleusine tristachya | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 479 | 469 | Embernagra platensis | Emberizidae | verdón | Aves | Chordata | Animales | 
| 480 | 470 | Emesinae sp. | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 481 | 471 | Emesis russula | Riodinidae | acróbata rojiza | Lepidoptera | Arthropoda | Animales | 
| 482 | 472 | Empicoris sp. | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 483 | 473 | Empidonomus aurantioatrocristatus | Tyrannidae | tuquito gris | Aves | Chordata | Animales | 
| 484 | 474 | Empidonomus varius | Tyrannidae | tuquito rayado | Aves | Chordata | Animales | 
| 485 | 475 | Enhydra anagallis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 486 | 476 | Enochrus breviusculus | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 487 | 477 | Enochrus circumcinctus | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 488 | 478 | Enochrus gentilis | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 489 | 479 | Enochrus variegatus | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 490 | 480 | Enterolobium contortisiliquum | Fabaceae | timbó | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 491 | 481 | Epargyreus tmolis | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 492 | 482 | Episcada hymenaea | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 493 | 483 | Equisetum giganteum | Equisetaceae | cola de caballo | Equisetidae | Polypodiopsida | Plantas verdes | 
| 494 | 484 | Eragrostis cilianensis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 495 | 485 | Eragrostis lugens | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 496 | 486 | Eragrostis virescens | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 497 | 487 | Eresia lansdorfi | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 498 | 488 | Erinnyis ello | Sphingidae | Lepidoptera | Arthropoda | Animales | |
| 499 | 489 | Eriobotrya japonica | Rosaceae | níspero | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 500 | 490 | Erlacta argetiniensis | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 501 | 491 | Erodium cicutarium | Geraniaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 502 | 492 | Eryngium cabrerae Pontiroli | Apiaceae | Eudicotiledoneae | Angiospermae | Plantas verdes | |
| 503 | 493 | Eryngium ebracteatum | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 504 | 494 | Eryngium ebracteatum Lam. | Apiaceae | Eudicotiledoneae | Angiospermae | Plantas verdes | |
| 505 | 495 | Eryngium pandanifolium | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 506 | 496 | Erynnis funeralis | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 507 | 497 | Erythrina crista-galli | Fabaceae | Ceibo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 508 | 498 | Eucaliptus sp. | Myrtaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 509 | 499 | Eugenia uniflora | Myrtaceae | ñangapirí | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 510 | 500 | Euglena sp. | Euglenales | Euglenida | Euglenozoa | ||
| 511 | 501 | Eupatorium inulifolium | Asteraceae | chilca de olor | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 512 | 502 | Euphorbia peplus | Euphorbiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 513 | 503 | Euphorbia serpens | Euphorbiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 514 | 504 | Euphorbia tirucalli | Euphorbiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 515 | 505 | Euptoieta hortensia | Nymphalidae | Hortensia | Lepidoptera | Arthropoda | Animales | 
| 516 | 506 | Eurema albula sinoe | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 517 | 507 | Eurema deva | Pieridae | Limoncito común | Lepidoptera | Arthropoda | Animales | 
| 518 | 508 | Euryopis sp1 | Theridiidae | Araneae | Arthropoda | Animales | |
| 519 | 509 | Euryopis spinifera | Theridiidae | Araneae | Arthropoda | Animales | |
| 520 | 510 | Euscarthmus meloryphus | Tyrannidae | barullero | Aves | Chordata | Animales | 
| 521 | 511 | Euschistus picticornis | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 522 | 512 | Eusolenophora testacea | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 523 | 513 | Eustala sp. | Araneidae | Araneae | Artrhropoda | Animales | |
| 524 | 514 | Exenura maguari | Ciconiidae | cigüeña americana | Aves | Chordata | Animales | 
| 525 | 515 | Falco femoralis | Falconidae | halcón plomizo | Aves | Chordata | Animales | 
| 526 | 516 | Falco peregrinus | Falconidae | halcón peregrino | Aves | Chordata | Animales | 
| 527 | 517 | Falco sparverius | Falconidae | halconcito colorado | Aves | Chordata | Animales | 
| 528 | 518 | Falconina gracilis | Corinnidae | Araneae | Arthropoda | Animales | |
| 529 | 519 | Fannia sp. | Fannidae | Diptera | Arthropoda | Animales | |
| 530 | 520 | Felis catus | Felidae | Gato doméstico (cimarrón o asilvestrado) | Mammalia | Chordata | Animales | 
| 531 | 521 | Festuca arundinacea | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 532 | 522 | Festuca pampeana | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 533 | 523 | Ficus luschnathiana | Moraceae | ibá-poí | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 534 | 524 | Filinia longiseta | Filiniidae | Flosculariacea | Rotifera | Animales | |
| 535 | 525 | Fluvicola pica | Tyrannidae | viudita blanca | Aves | Chordata | Animales | 
| 536 | 526 | Foeniculum vulgare | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 537 | 527 | Fraxinus excelsior | Oleaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 538 | 528 | Fraxinus pennsylvanica | Oleaceae | fresno americano | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 539 | 529 | Fregata magnificens | Fregatidae | ave fragata | Aves | Chordata | Animales | 
| 540 | 530 | Fulica armillata | Rallidae | gallareta ligas rojas | Aves | Chordata | Animales | 
| 541 | 531 | Fulica leucoptera | Rallidae | gallareta chica | Aves | Chordata | Animales | 
| 542 | 532 | Fulica rufifrons | Rallidae | gallareta escudete rojo | Aves | Chordata | Animales | 
| 543 | 533 | Fumaria capreolata | Fumariaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 544 | 534 | Funaria hygrometrica | Funariaceae | Bryopsida | Bryophyta | Plantas verdes | |
| 545 | 535 | Furnarius rufus | Furnariidae | hornero | Aves | Chordata | Animales | 
| 546 | 536 | Fusarium equiseti | Nectriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 547 | 537 | Fusarium lateritium | Nectriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 548 | 538 | Fusarium oxysporum | Nectriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 549 | 539 | Fusarium sporotrichoides | Nectriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 550 | 540 | Fusarium ventricosum | Nectriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 551 | 541 | Galega officinalis | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 552 | 542 | Galerita collaris | Carabidae | Coleoptera | Arthropoda | Animales | |
| 553 | 543 | Galgupha sp. | Cydnidae | Hemiptera | Arthropoda | Animales | |
| 554 | 544 | Galianthe brasiliensis | Rubiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 555 | 545 | Galinsoga parviflora | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 556 | 546 | Galium aparine | Rubiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 557 | 547 | Galium hypocarpium | Rubiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 558 | 548 | Gallinago paraguaiae | Scolopacidae | becasina común | Aves | Chordata | Animales | 
| 559 | 549 | Gallinula chloropus | Rallidae | pollona negra | Aves | Chordata | Animales | 
| 560 | 550 | Gallinula melanops | Rallidae | pollona pintada | Aves | Chordata | Animales | 
| 561 | 551 | Gammarus sp. | Gammaridae | Crustacea | Arthropoda | Animales | |
| 562 | 552 | Gamochaeta coarctata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 563 | 553 | Gamochaeta filaginea | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 564 | 554 | Gamochaeta simplicaulis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 565 | 556 | Gamochaeta sp. | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 566 | 555 | Gamochaeta spicata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 567 | 557 | Garganus gracilentus | Miridae | Hemiptera | Arthropoda | Animales | |
| 568 | 558 | Gargaphia sp | Tingidae | Hemiptera | Arthropoda | Animales | |
| 569 | 559 | Geocoris pallipes | Geocoridae | Hemiptera | Arthropoda | Animales | |
| 570 | 560 | Geoffroea decorticans | Fabaceae | chañar | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 571 | 561 | Geositta cunicularia | Furnaridae | caminera común | Aves | Chordata | Animales | 
| 572 | 562 | Geothlypis aequinoctialis | Parulidae | arañero cara negra | Aves | Chordata | Animales | 
| 573 | 563 | Gerardia communis | Scrophulariaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 574 | 564 | Gilmaniella humicola | Incertae sedis | Incertae sedis | Ascomycota | Fungi | |
| 575 | 565 | Glandularia megapotamica | Verbenaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 576 | 566 | Glaucidium brasilianum | Strigidae | caburé chico | Aves | Chordata | Animales | 
| 577 | 567 | Gleditsia triacanthos | Fabaceae | acacia negra | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 578 | 568 | Glenognatha lacteovittata | Tetragnathidae | Araneae | Arthropoda | Animales | |
| 579 | 569 | Glosophaga sorisina | Phyllostomidae | murciélago picaflor | Mammalia | Chordata | Animales | 
| 580 | 570 | Glutophrissa drusilla | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 581 | 571 | Glyphepomis adroguensis | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 582 | 572 | Gnaphalium gaudichaudianum | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 583 | 573 | Gnaphalium gauduchauium | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 584 | 574 | Gnorimopsar chopi | Icteridae | chopì | Aves | Chordata | Animales | 
| 585 | 575 | Goeldia sp | Titanoecidae | Araneae | Arthropoda | Animales | |
| 586 | 576 | Graphomyia auriceps | Muscidae | Diptera | Arthropoda | Animales | |
| 587 | 577 | Gryllus argentinus | Gryllidae | grillo | Orthoptera | Arthropoda | Animales | 
| 588 | 578 | Guaraniella mahnerti | Theridiidae | Araneae | Arthropoda | Animales | |
| 589 | 579 | Gubematrix cristata | Emberizidae | cardenal amarillo | Aves | Chordata | Animales | 
| 590 | 580 | Guira guira | Cuculidae | pirincho | Aves | Chordata | Animales | 
| 591 | 581 | Gymnocoronis spilanthoides | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 592 | 582 | Hallodapoides guaranianus | Miridae | Hemiptera | Arthropoda | Animales | |
| 593 | 583 | Halticus spegazzini | Miridae | Hemiptera | Arthropoda | Animales | |
| 594 | 1530 | Harmonia axyridis | Coccinellidae | Vaquita de San Antonio | Coleoptera | Arthropoda | Animales | 
| 595 | 584 | Harmostes procerus | Rhopalidae | Hemiptera | Arthropoda | Animales | |
| 596 | 585 | Hedera helix | Araliaceae | hiedra | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 597 | 586 | Hedychium coronarium | Zingiberaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 598 | 587 | Helicobia aurescens | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 599 | 588 | Heliconius erato phyllis | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 600 | 589 | Helicops carinicaudus | Colubridae | Lepidosauria | Chordata | Animales | |
| 601 | 590 | Helicops infrataeniatus | Colubridae | Lepidosauria | Chordata | Animales | |
| 602 | 591 | Helicops leopardinus | Colubridae | Lepidosauria | Chordata | Animales | |
| 603 | 592 | Heliomaster furcifer | Trochilidae | picaflor de barbijo | Aves | Chordata | Animales | 
| 604 | 593 | Heliopetes omrina | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 605 | 594 | Heliopyrgus americanus bellatrix | Hesperiidae | Ajedrezada de lunar | Lepidoptera | Arthropoda | Animales | 
| 606 | 595 | Hellica pulchella | Acanthosomatidae | Hemiptera | Arthropoda | Animales | |
| 607 | 596 | Helochares femoratus | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 608 | 597 | Hemarthria altissima | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 609 | 598 | Heraclides anchisiades capys | Papilionidae | Lepidoptera | Arthropoda | Animales | |
| 610 | 599 | Heraclides thoas thoantiodes | Papilionidae | limonera grande | Lepidoptera | Arthropoda | Animales | 
| 611 | 600 | Hermeuptychia hermes | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 612 | 601 | Heteronetta atricapilla | Anatidae | pato cabeza negra | Aves | Chordata | Animales | 
| 613 | 602 | Heteropteris angustifolia | Malphigiaceae | mariposa | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 614 | 603 | Heteropterys glabra | Malphigiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 615 | 604 | Hexachlamys edulis | Myrtaceae | ubajay | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 616 | 605 | Hibiscus striatus | Malvaceae | rosa de río | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 617 | 606 | Himantopus mexicanus | Recurvirostridae | tero real | Aves | Chordata | Animales | 
| 618 | 607 | Hirschfeldia incana | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 619 | 608 | Hirundo rustica | Hirundinidae | golondrina tijerita | Aves | Chordata | Animales | 
| 620 | 609 | Hisukattus transversalis | Salticidae | araña saltadora | Araneae | Arthropoda | Animales | 
| 621 | 610 | Holmbergiana weyenberghi | Sclerosomatidae | Opiliones | Arthropoda | Animales | |
| 622 | 611 | Hoplosternum littorale | Callichthyidae | Actinopterygii | Chordata | Animales | |
| 623 | 612 | Horciasinus argentinus | Miridae | Hemiptera | Arthropoda | Animales | |
| 624 | 613 | Humicola grisea | Chaetomiaceae | Sordariomycetes | Ascomycota | Fungi | |
| 625 | 614 | Humulus scandens | Cannabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 626 | 615 | Hyaliodocoris insignis | Miridae | Hemiptera | Arthropoda | Animales | |
| 627 | 616 | Hydaticus tuyuensis | Dytiscidae | Diptera | Arthropoda | Animales | |
| 628 | 617 | Hydra sp. | Hydroidea | Hydrozoa | Cnidaria | Animales | |
| 629 | 618 | Hydrobiomorpha spinosa | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 630 | 619 | Hydrocanthus sp | Noteridae | Coleoptera | Arthropoda | Animales | |
| 631 | 620 | Hydrocotyle bonariensis | Apiaceae | redondita de agua | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 632 | 621 | Hydrocotyle modesta | Apiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 633 | 622 | Hydrocotyle ranunculoides L | Apiaceae | Redondita de agua | Eudicotiledoneae | Angiospermae | Plantas verdes | 
| 634 | 623 | Hydromedusa tectifera | Chelidae | Chelonii | Chordata | Animales | |
| 635 | 624 | Hydrometra argentina | Hydrometridae | Hemiptera | Arthropoda | Animales | |
| 636 | 625 | Hydropsalis torquata = H. brasiliana | Caprimulgidae | atajacaminos tijera | Aves | Chordata | Animales | 
| 637 | 626 | Hydrovatus turbinatus | Dytiscidae | Diptera | Arthropoda | Animales | |
| 638 | 627 | Hylephila phyleus | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 639 | 628 | Hylocharis chrysura | Trochilidae | picaflor bronceado | Aves | Chordata | Animales | 
| 640 | 629 | Hymenops perspicillatus | Tyrannidae | pico de plata | Aves | Chordata | Animales | 
| 641 | 630 | Hypanartia bella | Nymphalidae | Bellísima común | Lepidoptera | Arthropoda | Animales | 
| 642 | 631 | Hypochaeris chilensis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 643 | 632 | Hypochaeris megapotamica | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 644 | 633 | Hypochaeris microcephala | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 645 | 634 | Hypostomus commersoni | Loricariidae | Actinopterygii | Chordata | Animales | |
| 646 | 635 | Hypsiboas (Hyla) pulchella | Hylidae | ranita de zarzal | Anura | Chordata | Animales | 
| 647 | 636 | Hyptis mutabilis | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 648 | 637 | Icterus cayanensis | Icteridae | boyerito | Aves | Chordata | Animales | 
| 649 | 638 | Icterus croconotus | Icteridae | matico | Aves | Chordata | Animales | 
| 650 | 1523 | Icterus jamacaii | Icteridae | turpial | Aves | Chordata | Animales | 
| 651 | 639 | Incagonum discosulcatum | Carabidae | Coleoptera | Arthropoda | Animales | |
| 652 | 640 | Incagonum lineatopunctatum | Carabidae | Coleoptera | Arthropoda | Animales | |
| 653 | 641 | Inga uruguensis | Fabaceae | ingá | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 654 | 642 | Ipomoea alba | Convolvulaceae | dama de noche | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 655 | 643 | Ipomoea cairica | Convolvulaceae | campanilla | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 656 | 644 | Ipomoea congesta | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 657 | 645 | Ipomoea indica | Convolvulaceae | campanilla violeta | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 658 | 646 | Ipomoea indivisa | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 659 | 647 | ipomoea mutabilis | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 660 | 648 | Ipomoea purpurea | Convolvulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 661 | 649 | Iresine diffusa | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 662 | 650 | Iris pseudacorus | Iridaceae | lirio amarillo | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 663 | 651 | Ischnodemus sp. | Blissidae | Hemiptera | Arthropoda | Animales | |
| 664 | 652 | Ixobrychus involucris | Ardeidae | mirasol común | Aves | Chordata | Animales | 
| 665 | 653 | Jacana jacana | Jacanidae | jacana | Aves | Chordata | Animales | 
| 666 | 654 | Jacaranda mimosifolia | Bignoniaceae | jacarandá | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 667 | 655 | Jadera obscura | Rhopalidae | Hemiptera | Arthropoda | Animales | |
| 668 | 656 | Jalysus sobrinus | Berytidae | Hemiptera | Arthropoda | Animales | |
| 669 | 657 | Jalysus sp | Berytidae | Hemiptera | Arthropoda | Animales | |
| 670 | 658 | Jenynsia multidentata | Anablepidae | Actinopterygii | Chordata | Animales | |
| 671 | 659 | Juncus imbricatus | Juncaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 672 | 660 | Juncus scirpioides | Juncaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 673 | 661 | Juncus tenuis | Juncaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 674 | 662 | Junonia evarete | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 675 | 663 | Junonia genoveva hilaris | Nymphalidae | Cuatro ojos común | Lepidoptera | Arthropoda | Animales | 
| 676 | 664 | Justicia bradengeriana | Acanthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 677 | 665 | Keratella sp. | Brachionidae | Ploima | Rotifera | Animales | |
| 678 | 666 | Knipolegus cyanirostris | Tyrannidae | viudita pico celeste | Aves | Chordata | Animales | 
| 679 | 667 | Koeleria phleoides | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 680 | 668 | Laccophilus sp. | Dytiscidae | Diptera | Arthropoda | Animales | |
| 681 | 669 | Lactuca saligna | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 682 | 670 | Lactuca serriola | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 683 | 671 | Laminacauda montevidensis | Linyphiidae | Araneae | Arthropoda | Animales | |
| 684 | 672 | Lamium amplexicaule | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 685 | 673 | Lancetes marginatus | Dytiscidae | Diptera | Arthropoda | Animales | |
| 686 | 674 | Lantana balansae | Verbenaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 687 | 675 | Lantana camara | Verbenaceae | camará | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 688 | 676 | Lantana lilacina | Verbenaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 689 | 677 | Lantana megapotamica | Verbenaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 690 | 678 | Largus rufipennis | Largidae | Hemiptera | Arthropoda | Animales | |
| 691 | 679 | Larus belcheri | Laridae | gaviota cangrejera | Aves | Chordata | Animales | 
| 692 | 680 | Larus cirrocephalus | Laridae | gaviota capucho gris | Aves | Chordata | Animales | 
| 693 | 681 | Larus dominicanus | Laridae | gaviota cocinera | Aves | Chordata | Animales | 
| 694 | 682 | Larus maculipennis | Laridae | gaviota capucho café | Aves | Chordata | Animales | 
| 695 | 683 | Lasiochilus sp. | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 696 | 684 | Lasiurus cinereus | Vespertilionidae | murciélago escarchado | Mammalia | Chordata | Animales | 
| 697 | 685 | Laterallus leucopyrrhus | Rallidae | burrito colorado | Aves | Chordata | Animales | 
| 698 | 686 | Laterallus melanophaius | Rallidae | burrito común | Aves | Chordata | Animales | 
| 699 | 687 | Lathrotricus euleri | Tyrannidae | mosqueta parda | Aves | Chordata | Animales | 
| 700 | 688 | Lathyrus latifolius | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 701 | 689 | Laurus nobilis | Lauraceae | Magnoliidae | Angiospermae | Plantas verdes | |
| 702 | 1524 | Laurus nobilis | Lauraceae | laurel de cocina | Magnoliidae | Angiospermae | Plantas verdes | 
| 703 | 690 | Lavatera arborea | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 704 | 691 | Leimadophis poecilogyrus | Colubridae | Lepidosauria | Chordata | Animales | |
| 705 | 692 | Leipodus lacertinus | Apidae | Hymenoptera | Artropoda | Animales | |
| 706 | 693 | Lemna gibba | Lemnaceae | lentejas de agua | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 707 | 694 | Leonotis nepetaefolia | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 708 | 695 | Lepidium bonariense | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 709 | 696 | Lepidocolaptes angustirostris | Dendrocolaptidae | chinchero chico | Aves | Chordata | Animales | 
| 710 | 697 | Leporinus obtusidens | Anostomidae | Aves | Chordata | Animales | |
| 711 | 698 | Leporinus obtusidens | Anostomidae | boga | Actinopterygii | Chordata | Animales | 
| 712 | 699 | Leptasthenura platensis | Furnaridae | coludito copetón | Aves | Chordata | Animales | 
| 713 | 700 | Leptodactylus ocellatus | Leptodactylinae | rana criolla | Anura | Chordata | Animales | 
| 714 | 701 | Leptoglossus chilensis | Coreidae | Hemiptera | Arthropoda | Animales | |
| 715 | 702 | Leptoglosus sp. | Coreidae | Hemiptera | Arthropoda | Animales | |
| 716 | 703 | Leptotes cassius | Lycaenidae | Lepidoptera | Arthropoda | Animales | |
| 717 | 704 | Leptotila verreauxi | Columbidae | yerutí común | Aves | Chordata | Animales | 
| 718 | 705 | Leptotyphlops muñoai | Colubridae | Lepidosauria | Chordata | Animales | |
| 719 | 706 | Lerodea eufala | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 720 | 707 | Lessonia rufa | Tyrannidae | sobrepuesto | Aves | Chordata | Animales | 
| 721 | 708 | Lethaeini sp | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 722 | 709 | Lethocerus sp. | Belostomatidae | Hemiptera | Arthropoda | Animales | |
| 723 | 710 | Leucanthemum vulgare | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 724 | 711 | Leucochloris albicollis | Trochilidae | picaflor garganta blanca | Aves | Chordata | Animales | 
| 725 | 712 | Libytheana carinenta | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 726 | 713 | Ligustrum lucidum | Oleaceae | ligustro | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 727 | 714 | Ligustrum sinense | Oleaceae | ligustrina | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 728 | 715 | Limnobium laevigatum | Hydrocharitaceae | cucharita de agua | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 729 | 716 | Limnoperna fortunei | Mytilidae | mejillón dorado | Bivalvia | Mollusca | Animales | 
| 730 | 717 | Limnophora spp. | Muscidae | Diptera | Arthropoda | Animales | |
| 731 | 718 | Limnornis curvirostris | Furnaridae | pajonalera pico curvo | Aves | Chordata | Animales | 
| 732 | 719 | Limosa haemastica | Scolopacidae | becasa de mar | Aves | Chordata | Animales | 
| 733 | 720 | Lindbergocapsus bonariensis | Miridae | Hemiptera | Arthropoda | Animales | |
| 734 | 721 | Liodessus sp. | Dytiscidae | Diptera | Arthropoda | Animales | |
| 735 | 722 | Liophis anomalus | Colubridae | culebra listada | Lepidosauria | Chordata | Animales | 
| 736 | 723 | Liophis jaegeri | Colubridae | Lepidosauria | Chordata | Animales | |
| 737 | 724 | Liophis miliaris | Colubridae | culebra de agua | Lepidosauria | Chordata | Animales | 
| 738 | 725 | Lipogomphus lacuniferus | Hebridae | Hemiptera | Arthropoda | Animales | |
| 739 | 726 | Lipogomphus lacuniferus | Hebridae | Hemiptera | Arthropoda | Animales | |
| 740 | 727 | Lipostemmata major | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 741 | 728 | Lipostemmata scutellata | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 742 | 729 | Littoridina perchappei | Hydrobiidae | Gastropoda | Mollusca | Animales | |
| 743 | 730 | Livistona sp. | Arecaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 744 | 731 | Lobizon humilis | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 745 | 732 | Lolium multiflorum | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 746 | 733 | Lonchocarpus nitidus | Fabaceae | bugre | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 747 | 734 | Lonchopria chalybea | Colletidae | Hymenoptera | Artropoda | Animales | |
| 748 | 735 | Lonicera japonica | Caprifoliaceae | madreselva | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 749 | 736 | Lophogenius ebeninus | Carabidae | Coleoptera | Arthropoda | Animales | |
| 750 | 737 | Lophospingus pusillus | Emberizidae | soldadito común | Aves | Chordata | Animales | 
| 751 | 738 | Lotus glaber | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 752 | 739 | Lotus tenuis | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 753 | 740 | Loxa flavicollis | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 754 | 741 | Loxandrus audouini | Carabidae | Coleoptera | Arthropoda | Animales | |
| 755 | 742 | Loxandrus brullei | Carabidae | Coleoptera | Arthropoda | Animales | |
| 756 | 743 | Loxandrus confusus | Carabidae | Coleoptera | Arthropoda | Animales | |
| 757 | 744 | Loxandrus planicollis | Carabidae | Coleoptera | Arthropoda | Animales | |
| 758 | 745 | Loxandrus posticus | Carabidae | Coleoptera | Arthropoda | Animales | |
| 759 | 746 | Loxosceles laeta | Sicariidae | araña de los cuadros | Araneae | Arthropoda | Animales | 
| 760 | 747 | Ludwigia elegans | Onagraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 761 | 748 | Ludwigia longifolia | Onagraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 762 | 749 | Ludwigia peploides | Onagraceae | falsa verdolaga | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 763 | 750 | Luehea divaricata | Tiliaceae | azota caballo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 764 | 751 | Lutreolina crassicaudata | Didelphidae | zarigueya colorada | Mammalia | Chordata | Animales | 
| 765 | 752 | Lycopersicum esculentum | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 766 | 753 | Lycosa erythrognatha | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 767 | 754 | Lycosa thorelli | Lycosidae | araña lobo | Araneae | Arthropoda | Animales | 
| 768 | 755 | Lystophrys dorbigny | Colubridae | Lepidosauria | Chordata | Animales | |
| 769 | 756 | Mabuya dorsovittata | Scincidae | Lepidosauria | Chordata | Animales | |
| 770 | 757 | Macfadyena unguis-cati | Bignoniaceae | uña de gato | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 771 | 758 | Machetornis rixosus | Tyrannidae | picabuey | Aves | Chordata | Animales | 
| 772 | 759 | Magnolia grandiflora | Magnoliaceae | magnolia | Magnoliidae | Angiospermae | Plantas verdes | 
| 773 | 760 | Mallodon spinibarbis | Cerambycidae | bicho taladro | Coleoptera | Arthropoda | Animales | 
| 774 | 761 | Malva nicaensis | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 775 | 762 | Malva parviflora | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 776 | 763 | Malvastrum coromandelianum | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 777 | 764 | Manihot flabellifolia | Euphorbiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 778 | 765 | Manihot grahamii | Euphorbiaceae | falso cafeto | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 779 | 766 | Mansonia indubitans | Culicidae | Diptera | Arthropoda | Animales | |
| 780 | 767 | Mansonia titillans | Culicidae | Diptera | Arthropoda | Animales | |
| 781 | 768 | Marpesia chiron marius | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 782 | 769 | Marrubium vulgare | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 783 | 770 | Matricaria recutita | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 784 | 771 | Mecocephala acuminata | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 785 | 772 | Medicago lupulina | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 786 | 773 | Medicago sativa | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 787 | 774 | Megaceryle torquata | Alcedinidae | martín pescador grande | Aves | Chordata | Animales | 
| 788 | 775 | Megadytes glaucus | Dytiscidae | Coleoptera | Arthropoda | Animales | |
| 789 | 776 | Megarynchus pitangua | Tyrannidae | pitanguá | Aves | Chordata | Animales | 
| 790 | 777 | Meioneta sp. | Linyphiidae | Araneae | Arthropoda | Animales | |
| 791 | 1527 | Melanchroia aterea | Artidae | Negrita Rodo Simón | Lepidoptera | Arthropoda | Animales | 
| 792 | 778 | Melanerpes candidus | Picidae | carpintero blanco | Aves | Chordata | Animales | 
| 793 | 779 | Melanolestes argentinus | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 794 | 780 | Melia azedarach | Meliaceae | paraíso | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 795 | 781 | Melilotus albus | Fabaceae | trébol de olor blanco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 796 | 782 | Melilotus indica | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 797 | 783 | Melisa officinalis | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 798 | 784 | Melitoma segmentaria | Apidae | Hymenoptera | Artropoda | Animales | |
| 799 | 1537 | Melopsittacus undulatus | Psittacidae | cotorrita australiana | Aves | Chordata | Animales | 
| 800 | 785 | Meriola cetiformis | Corinnidae | Araneae | Arthropoda | Animales | |
| 801 | 786 | Meriola teresita | Corinnidae | Araneae | Arthropoda | Animales | |
| 802 | 787 | Mesabolivar sp. | Pholcidae | Araneae | Arthropoda | Animales | |
| 803 | 788 | Mesoplia sp | Apidae | Hymenoptera | Artropoda | Animales | |
| 804 | 789 | Metaltella simoni | Amphinectidae | Araneae | Arthropoda | Animales | |
| 805 | 790 | Metaphidippus sp. | Salticidae | Aranae | Arthropoda | Animales | |
| 806 | 791 | Metastelma diffusum | Apocynaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 807 | 792 | Micrathena sp. | Araneidae | Araneae | Arthropoda | Animales | |
| 808 | 793 | Microcerella erythropyga | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 809 | 794 | Microcerella muehni | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 810 | 795 | Micropalama himantopus | Scolopacidae | playero zancudo | Aves | Chordata | Animales | 
| 811 | 796 | Microvelia sp. | Veliidae | Hemiptera | Arthropoda | Animales | |
| 812 | 797 | Mikania micrantha | Asteraceae | guako | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 813 | 798 | Mikania periplocifolia | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 814 | 799 | Milvago chimango | Falconidae | chimango | Aves | Chordata | Animales | 
| 815 | 800 | Mimosa bonplandii | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 816 | 801 | Mimosa pigra | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 817 | 1536 | Mimus patagonicus | Mimidae | calandria mora | Aves | Chordata | Animales | 
| 818 | 802 | Mimus saturninus | Mimidae | calandria grande | Aves | Chordata | Animales | 
| 819 | 803 | Mimus triurus | Mimidae | calandria real | Aves | Chordata | Animales | 
| 820 | 804 | Missipus variabilis | Scutelleridae | Hemiptera | Arthropoda | Animales | |
| 821 | 805 | Modiola caroliniana | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 822 | 806 | Modiolastrum lateritium | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 823 | 807 | Modiolastrum malvifolium | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 824 | 808 | Molothrus bonariensis | Icteridae | tordo renegrido | Aves | Chordata | Animales | 
| 825 | 809 | Molothrus rufoaxilaris | Icteridae | tordo pico corto | Aves | Chordata | Animales | 
| 826 | 810 | Monostya lunaris | Lecanidae | Ploima | Rotifera | Animales | |
| 827 | 811 | Monstera deliciosa | Araceae | costilla de Adán | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 828 | 812 | Monteiroa glomerata | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 829 | 813 | Morus alba | Moraceae | mora | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 830 | 814 | Mucor sp. | Mucoraceae | Zygomycetes | Zygomycetes | Fungi | |
| 831 | 815 | Muehlenbeckia sagittifolia | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 832 | 816 | Mus musculus | Muridae | ratón casero | Mammalia | Chordata | Animales | 
| 833 | 817 | Musa paradisiaca | Musaceae | bananero | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 834 | 818 | Musca domestica | Muscidae | Diptera | Arthropoda | Animales | |
| 835 | 819 | Muscina stabulans | Muscidae | Diptera | Arthropoda | Animales | |
| 836 | 820 | Muscisaxicola macloviana | Tyrannidae | dormilona cara negra | Aves | Chordata | Animales | 
| 837 | 821 | Mycteria americana | Ciconidae | tuyuyú | Aves | Chordata | Animales | 
| 838 | 822 | Mydaea plaumanni | Muscidae | Diptera | Arthropoda | Animales | |
| 839 | 823 | Myiarchus swainsoni | Tyrannidae | burlisto pico canela | Aves | Chordata | Animales | 
| 840 | 824 | Myiodynastes maculatus | Tyrannidae | benteveo rayado | Aves | Chordata | Animales | 
| 841 | 825 | Myiophobus fasciatus | Tyrannidae | mosqueta estriada | Aves | Chordata | Animales | 
| 842 | 826 | Myiopsitta monachus | Psittacidae | cotorra | Aves | Chordata | Animales | 
| 843 | 827 | Myocastor coypus | Myocastoridae | coipo | Mammalia | Chordata | Animales | 
| 844 | 828 | Myoporum laetum | Myoporaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 845 | 829 | Myospila oscura | Muscidae | Diptera | Arthropoda | Animales | |
| 846 | 830 | Myotis sp. | Vespertilionidae | Mammalia | Chordata | Animales | |
| 847 | 831 | Myrabilis jalapa | Nyctaginaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 848 | 832 | Myrceugenia glaucescens | Myrtaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 849 | 833 | Myrothecium sp. | Incertae sedis | Sordariomycetes | Ascomycota | Fungi | |
| 850 | 834 | Myrsine sp. | Myrsinaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 851 | 835 | Nabis argentinus | Nabidae | Hemiptera | Arthropoda | Animales | |
| 852 | 836 | Nais sp. | Naididae | Oligochaeta | Annelida | Animales | |
| 853 | 837 | Nandayus nenday | Psittacidae | ñanday | Aves | Chordata | Animales | 
| 854 | 838 | Narvesus minor | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 855 | 839 | Naupactus cf. xanthographus | Curculionidae | gorgojo | Coleoptera | Arthropoda | Animales | 
| 856 | 1557 | Nemosia pileata | Thraupidae | frutero cabeza negra | Aves | Chordata | Animales | 
| 857 | 840 | Neolithus fasciatus | Psyllidae | Hemiptera | Arthropoda | Animales | |
| 858 | 841 | Neomaso sp | Linyphiidae | Araneae | Arthropoda | Animales | |
| 859 | 842 | Neomuscina zosteris | Muscidae | Diptera | Arthropoda | Animales | |
| 860 | 843 | Neoneella sp. | Miridae | Hemiptera | Arthropoda | Animales | |
| 861 | 844 | Neopamera sp | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 862 | 845 | Neopetissius sp. | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 863 | 846 | Neoplea maculosa | Pleidae | Hemiptera | Arthropoda | Animales | |
| 864 | 847 | Neortholomus sp. | Lygaidae | Hemiptera | Arthropoda | Animales | |
| 865 | 848 | Neoxolmis rubetra | Tyrannidae | monjita castaña | Aves | Chordata | Animales | 
| 866 | 849 | Nephila clavipes | Tetragnathidae | Araneae | Arthropoda | Animales | |
| 867 | 850 | Nephochateopteryx elegans | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 868 | 851 | Nerium oleander | Apocynaceae | laurel de flor | Eudicotiledoneae | Angiospermae | Plantas verdes | 
| 869 | 852 | Nerthra sp. | Nerthridae | Hemiptera | Arthropoda | Animales | |
| 870 | 853 | Netta peposaca | Anatidae | pato picazo | Aves | Chordata | Animales | 
| 871 | 854 | Neurospora erythraea | Sordariaceae | Sordariomycetes | Ascomycota | Fungi | |
| 872 | 855 | Neurotrixa felsina | Muscidae | Diptera | Arthropoda | Animales | |
| 873 | 856 | Nezara viridula | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 874 | 857 | Nicotiana glauca | Solanaceae | palan palan | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 875 | 858 | Nicotiana longiflora | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 876 | 859 | Nigrospora oryzae | Trichosphaeriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 877 | 860 | Nigrospora sphaerica | Trichosphaeriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 878 | 1534 | Nnnn | Nnnn | Zzzz | Zzzz | Zzzz | Zzzz | 
| 879 | 861 | No determinada | No determinada | No determinada | Lobosea | Amoebozoa | |
| 880 | 862 | No determinada | No determinada | No determinada | Ciliata | Animales | |
| 881 | 863 | No determinada | No determinada | No determinada | Nematoda | Animales | |
| 882 | 864 | No determinada | Symphypleona no determinada | Collembola | Arthropoda | Animales | |
| 883 | 865 | No determinada | Arthropleona no determinada | Collembola | Arthropoda | Animales | |
| 884 | 866 | No determinada | Coenagrionidae | Odonata | Arthropoda | Animales | |
| 885 | 867 | No determinada | Aeshnidae | Odonata | Arthropoda | Animales | |
| 886 | 868 | No determinada | Libellulidae | Odonata | Arthropoda | Animales | |
| 887 | 869 | No determinada | Baetidae | Ephemeroptera | Arthropoda | Animales | |
| 888 | 870 | No determinada | Scirtidae | Coleoptera | Arthropoda | Animales | |
| 889 | 871 | No determinada | Trogidae | Coleoptera | Arthropoda | Animales | |
| 890 | 872 | No determinada | Buprestidae | Coleoptera | Arthropoda | Animales | |
| 891 | 873 | No determinada | Lampyridae | Coleoptera | Arthropoda | Animales | |
| 892 | 874 | No determinada | Coccinellidae | Coleoptera | Arthropoda | Animales | |
| 893 | 875 | No determinada | Acroceridae | Diptera | Arthropoda | Animales | |
| 894 | 876 | No determinada | Scathophagidae | Diptera | Arthropoda | Animales | |
| 895 | 877 | No determinada | Lonchaeidae | Diptera | Arthropoda | Animales | |
| 896 | 878 | No determinada | Tephritidae | Diptera | Arthropoda | Animales | |
| 897 | 879 | No determinada | Piophilidae | Diptera | Arthropoda | Animales | |
| 898 | 880 | No determinada | Drosophilidae | Diptera | Arthropoda | Animales | |
| 899 | 881 | No determinada | Micropezidae | Diptera | Arthropoda | Animales | |
| 900 | 882 | No determinada | Stratiomyidae | Diptera | Arthropoda | Animales | |
| 901 | 883 | No determinada | Psychodidae | Diptera | Arthropoda | Animales | |
| 902 | 884 | No determinada | Ceratopogonidae | Diptera | Arthropoda | Animales | |
| 903 | 885 | No determinada | Chironomidae | Diptera | Arthropoda | Animales | |
| 904 | 886 | No determinada | Tipulidae | Diptera | Arthropoda | Animales | |
| 905 | 887 | No determinada | No determinada | bicho palo | Phasmida | Arthropoda | Animales | 
| 906 | 888 | No determinada | No determinada | cucaracha | Blattaria | Arthropoda | Animales | 
| 907 | 889 | No determinada | No determinada | Mantodea | Arthropoda | Animales | |
| 908 | 890 | No determinada | No determinada | Dermaptera | Arthropoda | Animales | |
| 909 | 891 | No determinada | Cyclopoida no determinada | Crustacea | Arthropoda | Animales | |
| 910 | 892 | No determinada | Decapoda no determinada | Crustacea | Arthropoda | Animales | |
| 911 | 893 | No determinada | Ostracoda No determinada | Crustacea | Arthropoda | Animales | |
| 912 | 894 | No determinada | Lithobiomorpha no determinada | ciempiés | Chilopoda | Arthropoda | Animales | 
| 913 | 895 | No determinada | No determinada | milpiés | Diplopoda | Arthropoda | Animales | 
| 914 | 896 | No determinada | Segestriidae | Araneae | Arthropoda | Animales | |
| 915 | 897 | No determinada | Pholcidae | araña patona | Araneae | Arthropoda | Animales | 
| 916 | 898 | No determinada | Miturgidae | Araneae | Arthropoda | Animales | |
| 917 | 899 | No determinada | Hahniidae | Araneae | Arthropoda | Animales | |
| 918 | 900 | No determinada | Amaurobiidae | Araneae | Arthropoda | Animales | |
| 919 | 901 | No determinada | Pisauridae | Araneae | Arthropoda | Animales | |
| 920 | 902 | No determinada | Astigmata no determinada | Acari | Arthropoda | Animales | |
| 921 | 903 | No determinada | Oribatida no determinada | Acari | Arthropoda | Animales | |
| 922 | 904 | No determinada | Mesostigmata no determinada | Acari | Arthropoda | Animales | |
| 923 | 905 | No determinada | Ixodida no determinada | Acari | Arthropoda | Animales | |
| 924 | 906 | No determinada | Triaenonychidae | Opiliones | Arthropoda | Animales | |
| 925 | 907 | No determinada | Gagrellidae | Opiliones | Arthropoda | Animales | |
| 926 | 908 | No determinada | No determinada | Pseudoscorpiones | Arthropoda | Animales | |
| 927 | 909 | No determinada | No determinada | lombriz | No determinada | Annelida | Animales | 
| 928 | 910 | No determinada | Zygoptera no determinada | Odonata | Arthropoda | Animales | |
| 929 | 911 | No determinada | Gammaridea | Crustacea | Arthropoda | Animales | |
| 930 | 912 | No determinada | Muscidae | Diptera | Arthropoda | Animales | |
| 931 | 913 | No determinada | Hyalellidae (Gammaridea) | anfípodo | Crustacea | Arthropoda | Animales | 
| 932 | 914 | No determinada | Mantispidae | Neuroptera | Arthropoda | Animales | |
| 933 | 915 | No determinada | Chrysopidae | Neuroptera | Arthropoda | Animales | |
| 934 | 916 | No determinada | Membracidae | Hemiptera | Arthropoda | Animales | |
| 935 | 917 | No determinada | Aphidoidea no determinada | Hemiptera | Arthropoda | Animales | |
| 936 | 918 | No determinada | Jassoidea no determinada | Hemiptera | Arthropoda | Animales | |
| 937 | 919 | No determinada | Chrysomeloidea no determinada | Coleoptera | Arthropoda | Animales | |
| 938 | 920 | No determinada | Nitidulidae | Coleoptera | Arthropoda | Animales | |
| 939 | 921 | No determinada | Planorbidae | Gastropoda | Mollusca | Animales | |
| 940 | 922 | No determinada | Stylommatophora no determinada | babosa | Gastropoda | Mollusca | Animales | 
| 941 | 923 | No determinada | Cecidomyiidae | Diptera | Arthropoda | Animales | |
| 942 | 924 | No determinada | Syrphidae | Diptera | Arthropoda | Animales | |
| 943 | 925 | No determinada | No determinada | gusano aplanado | No determinado | Platyhelminthes | Animales | 
| 944 | 926 | No determinada | Evaniidae | Hymenoptera | Arthropoda | Animales | |
| 945 | 927 | No determinada | Calanoida no determinada | Crustacea | Arthropoda | Animales | |
| 946 | 928 | No determinada | Tabanidae | tábano | Diptera | Arthropoda | Animales | 
| 947 | 929 | No determinada | Palpatores no determinada | Opiliones | Arthropoda | Animales | |
| 948 | 930 | No determinada | Tettigonidae | grillo | Orthoptera | Arthropoda | Animales | 
| 949 | 931 | No determinada | Chrysomelidae | Coleoptera | Arthropoda | Animales | |
| 950 | 932 | No determinada | Geometridae | Lepidoptera | Arthropoda | Animales | |
| 951 | 933 | No determinada | Cicadidae | cigarra | Hemiptera | Arthropoda | Animales | 
| 952 | 934 | No determinada | Arctiidae | Lepidoptera | Arthropoda | Animales | |
| 953 | 935 | No determinada | No determinada | bicho hoja | Phasmida | Arthropoda | Animales | 
| 954 | 936 | No determinada | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 955 | 937 | No determinada | Amphipoda no determinado | Crustacea | Arthropoda | Animales | |
| 956 | 938 | No determinada | No determinada | grillo | Orthoptera | Arthropoda | Animales | 
| 957 | 939 | No determinada | No determinada | ácaro | Acari | Arthropoda | Animales | 
| 958 | 940 | No detrminada | Mogoplistidae | Orthoptera | Arthropoda | Animales | |
| 959 | 941 | Nomonyx dominicus | Anatidae | pato fierro | Aves | Chordata | Animales | 
| 960 | 942 | Nothoschordum inodorum | Liliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 961 | 943 | Nothoscordum bivalve | Liliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 962 | 944 | Nothoscordum gracile | Liliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 963 | 945 | Nothoscordum inodorum | Liliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 964 | 946 | Notiochelidon cyanoleuca | Hirundinidae | golondrina barranquera | Aves | Chordata | Animales | 
| 965 | 947 | Notomicrus sp. | Noteridae | Coleoptera | Arthropoda | Animales | |
| 966 | 948 | Notonecta sellata | Notonectidae | Hemiptera | Arthropoda | Animales | |
| 967 | 949 | Numenius phaeopus | Scolopacidae | playero trinador | Aves | Chordata | Animales | 
| 968 | 950 | Nycticorax nycticorax | Ardeidae | garza bruja | Aves | Chordata | Animales | 
| 969 | 951 | Nycticryphes semicollaris | Rostratulidae | aguatero | Aves | Chordata | Animales | 
| 970 | 952 | Nyctobates gigas | Tenebrionidae | Coleoptera | Arthropoda | Animales | |
| 971 | 953 | Nysius simulans | Lygaidae | Hemiptera | Arthropoda | Animales | |
| 972 | 954 | Nysius sp | Lygaeidae | Hemiptera | Arthropoda | Animales | |
| 973 | 955 | Ochlerotatus albifasciatus | Culicidae | Diptera | Arthropoda | Animales | |
| 974 | 956 | Ochlerotatus crinifer | Culicidae | Diptera | Arthropoda | Animales | |
| 975 | 957 | Ochlerotatus scapularis | Culicidae | Díptera | Arthropoda | Animales | |
| 976 | 958 | Ocotea acutifolia | Lauraceae | laurel criollo | Magnoliidae | Angiospermae | Plantas verdes | 
| 977 | 959 | Ocrepeira venustula | Araneidae | Araneae | Arthropoda | Animales | |
| 978 | 960 | Odontonema sp. | Acanthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 979 | 961 | Oenonthera odorata | Onagraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 980 | 962 | Oenothera affinis | Onagraceae | suspiro | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 981 | 963 | Oenothera rosea | Onagraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 982 | 964 | Ofellus mantiqueiranus | Miridae | Hemiptera | Arthropoda | Animales | |
| 983 | 965 | Oligoryzomys flavescens | Muridae | Mammalia | Chordata | Animales | |
| 984 | 966 | Oncidium bifolium | Orchidaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 985 | 967 | Oncopeltus sp | Lygaeidae | Hemiptera | Arthropoda | Animales | |
| 986 | 968 | Oncopeltus unifasciatellus | Lygaidae | Hemiptera | Arthropoda | Animales | |
| 987 | 969 | Ophiodes vertebralis | Anguidae | Lepidosauria | Chordata | Animales | |
| 988 | 970 | Ophyra aenescens | Muscidae | Diptera | Arthropoda | Animales | |
| 989 | 971 | Oplismenopsis najada | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 990 | 972 | Opsiphanes invirae amplificatus | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 991 | 973 | Opuntia sp. | Cactaceae | tuna | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 992 | 974 | Orius insidiosus | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 993 | 975 | Orius tristicolor | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 994 | 976 | Orthotylus argentinus | Miridae | Hemiptera | Arthropoda | Animales | |
| 995 | 977 | Orthotylus pamparum | Miridae | Hemiptera | Arthropoda | Animales | |
| 996 | 978 | Ortilia ianthe | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 997 | 979 | Ortilia ithra | Nymphalidae | Bataraza | Lepidoptera | Arthropoda | Animales | 
| 998 | 980 | Otus choliba | Strigidae | alilicucu común | Aves | Chordata | Animales | 
| 999 | 981 | Oxalis articulata | Oxalidaceae | vinagrillo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1000 | 982 | Oxalis corniculata | Oxalidaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1001 | 983 | Oxalis sp. | Oxalidaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1002 | 984 | Oxycarenus hyalinipennis | Lygaidae | Hemiptera | Arthropoda | Animales | |
| 1003 | 985 | Oxycheila femoralis | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1004 | 986 | Oxypetalum solanoides | Apocynaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1005 | 987 | Oxysarcodexia bicolor | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1006 | 988 | Oxysarcodexia culmiforceps | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1007 | 989 | Oxysarcodexia marina | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1008 | 990 | Oxysarcodexia paulistanensis | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1009 | 991 | Oxysarcodexia terminalis | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1010 | 992 | Oxysarcodexia thornax | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1011 | 993 | Oxysarcodexia varia | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1012 | 994 | Oxyura vittata | Anatidae | pato zambullidor chico | Aves | Chordata | Animales | 
| 1013 | 995 | Pachylis argentinus | Coreidae | Hemiptera | Arthropoda | Animales | |
| 1014 | 996 | Pachymerocerus purpurissatus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1015 | 997 | Pachymorphus moerens | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1016 | 998 | Pachymorphus striatulus | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1017 | 999 | Pachyramphus polychopterus | Tyrannidae | anambé común | Aves | Chordata | Animales | 
| 1018 | 1542 | Pachyramphus viridis | Tyrannidae | anambé verdoso | Aves | Chordata | Animales | 
| 1019 | 1000 | Pagasa fusca | Nabidae | Hemiptera | Arthropoda | Animales | |
| 1020 | 1001 | Pagasa fusipennis | Nabidae | Hemiptera | Arthropoda | Animales | |
| 1021 | 1002 | Paisana brachialis | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 1022 | 1003 | Paisana pampeana | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 1023 | 1004 | Pampasatyrus periphas | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 1024 | 1005 | Pampasatyrus quies | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 1025 | 1006 | Pandion haliaetus | Pandionidae | águila pescadora | Aves | Chordata | Animales | 
| 1026 | 1007 | Panicum bergii | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1027 | 1008 | Panicum capilare | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1028 | 1009 | Panicum elephantipes | Poaceae | canutillo | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1029 | 1010 | Panicum grumosum | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1030 | 1011 | Panicum maximum | Poaceae | pasto de guinea | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1031 | 1012 | Panoquina ocola | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1032 | 1013 | Pantodactylus schreibersii | Gymnophtalmidae | Lepidosauria | Chordata | Animales | |
| 1033 | 1014 | Parabuteo unicinctus | Accipitridae | gavilán mixto | Aves | Chordata | Animales | 
| 1034 | 1015 | Paracryptocerus sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 1035 | 1016 | Paracymus sp. | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 1036 | 1017 | Paratrechina sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 1037 | 1018 | Paravelia platensis | Macroveliidae | Hemiptera | Arthropoda | Animales | |
| 1038 | 1019 | Pardirallus maculatus | Rallidae | gallineta negruzca | Aves | Chordata | Animales | 
| 1039 | 1552 | Pardirallus maculatus | Rallidae | gallineta overa | Aves | Chordata | Animales | 
| 1040 | 1020 | Pardirallus sanguinolentus | Rallidae | gallineta común | Aves | Chordata | Animales | 
| 1041 | 1021 | Parhypates (Paranortes) cordicollis | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1042 | 1022 | Parides bunichus damocrates | Papilionidae | Lepidoptera | Arthropoda | Animales | |
| 1043 | 1023 | Parides perrhebus damocrates | Papilionidae | Lepidoptera | Arthropoda | Animales | |
| 1044 | 1024 | Parietaria debilis | Urticaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1045 | 1025 | Parietaria officinalis | Urticaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1046 | 1026 | Parkinsonia aculeata | Fabaceae | cina cina | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1047 | 1027 | Paroaria capitata | Emberizidae | cardenilla | Aves | Chordata | Animales | 
| 1048 | 1028 | Paroaria coronata | Emberizidae | cardenal común | Aves | Chordata | Animales | 
| 1049 | 1029 | Parula pitiayumi | Parulidae | pitiayumí | Aves | Chordata | Animales | 
| 1050 | 1030 | Paspalum dilatatum | Poaceae | pasto miel | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1051 | 1031 | Paspalum distichum | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1052 | 1032 | Paspalum quadrifarium | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1053 | 1033 | Paspalum urvillei | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1054 | 1034 | Passer domesticus | Ploceidae | gorrión | Aves | Chordata | Animales | 
| 1055 | 1035 | Passiflora caerulea | Passifloraceae | mburucuyá | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1056 | 1036 | Patagona gigas | Trochilidae | picaflor gigante | Aves | Chordata | Animales | 
| 1057 | 1037 | Pavonia hastata | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1058 | 1038 | Pavonia sepium | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1059 | 1039 | Pegoscapus (=Blastophaga) cabrearaii | Agaonidae | Hymenoptera | Arthropoda | Animales | |
| 1060 | 1040 | Pelocoris binotulatus nigriculus | Naucoridae | Hemiptera | Arthropoda | Animales | |
| 1061 | 1041 | Penelope obscura | Cracidae | pava de monte común | Aves | Chordata | Animales | 
| 1062 | 1042 | Penicillum spp. | Trichocomaceae | Eurotiomycetes | Ascomycota | Fungi | |
| 1063 | 1043 | Pennisetum clandestinum | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1064 | 1044 | Persea americana | Lauraceae | Magnoliidae | Angiospermae | Plantas verdes | |
| 1065 | 1045 | Pestalotiopsis disseminata | Amphisphaeriaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1066 | 1046 | Petrochelidon pyrrhonota | Hirundinidae | golondrina rabadilla canela | Aves | Chordata | Animales | 
| 1067 | 1047 | Petunia parviflora | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1068 | 1048 | Pfaffia glomerata | Amaranthaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1069 | 1553 | Phacellodomus sibilatrix | Furnaridae | espinero chico | Aves | Chordata | Animales | 
| 1070 | 1049 | Phacellodromus striaticollis | Furnaridae | espinero pecho manchado | Aves | Chordata | Animales | 
| 1071 | 1050 | Phaenicia cluvia | Calliphoridae | Diptera | Arthropoda | Animales | |
| 1072 | 1051 | Phaenicia sericata | Calliphoridae | Diptera | Arthropoda | Animales | |
| 1073 | 1052 | Phaeoprogne tapera | Hirundinidae | golondrina parda | Aves | Chordata | Animales | 
| 1074 | 1053 | Phalacrocorax brasilianus | Phalacrocoracidae | biguá | Aves | Chordata | Animales | 
| 1075 | 1054 | Phalaris angusta | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1076 | 1055 | Phalaropus tricolor | Scolopacidae | falaropo común | Aves | Chordata | Animales | 
| 1077 | 1056 | Phaonia trispila | Muscidae | Diptera | Arthropoda | Animales | |
| 1078 | 1057 | Phaseolus adenanthus | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1079 | 1058 | Pheidole sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 1080 | 1059 | Pheucticus aureoventris | Emberizidae | rey del bosque | Aves | Chordata | Animales | 
| 1081 | 1060 | Philodendron bipinnatifidum | Araceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1082 | 1061 | Philodryas aestivus | Colubridae | Lepidosauria | Chordata | Animales | |
| 1083 | 1062 | Philodryas patagoniensis | Colubridae | Lepidosauria | Chordata | Animales | |
| 1084 | 1063 | Phimosus infuscatus | Threskiornithidae | cuervillo cara pelada | Aves | Chordata | Animales | 
| 1085 | 1064 | Phleocryptes melanops | Furnaridae | junquero | Aves | Chordata | Animales | 
| 1086 | 1065 | Phocides polybius phanias | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1087 | 1066 | Phoebis argante | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 1088 | 1067 | Phoebis neocypris | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 1089 | 1068 | Phoebis sennae marcellina | Pieridae | Azufrada común | Lepidoptera | Arthropoda | Animales | 
| 1090 | 1069 | Phoenicopterus chilensis | Phoenicopteridae | flamenco austral | Aves | Chordata | Animales | 
| 1091 | 1070 | Phoenix canariensis | Arecaceae | palmera fenix | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1092 | 1071 | Phoma sp. | Incertae sedis | Dothideomycetes | Ascomycota | Fungi | |
| 1093 | 1072 | Phorticus collaris | Nabidae | Hemiptera | Arthropoda | Animales | |
| 1094 | 1073 | Photinus sp | Lampyridae | luciernaga o bichito de luz | Coleoptera | Arthropoda | Animales | 
| 1095 | 1074 | Phrygilus fruticeti | Emberizidae | yal negro | Aves | Chordata | Animales | 
| 1096 | 1075 | Phrynops hilarii | Chelidae | tortuga de laguna | Chelonii | Chordata | Animales | 
| 1097 | 1076 | Phthia picta | Coreidae | Hemiptera | Arthropoda | Animales | |
| 1098 | 1077 | Phyla canescens | Verbenaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1099 | 1078 | Phyllanthus niruri | Euphorbiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1100 | 1079 | Phyllanthus sellowianus | Euphorbiaceae | sarandí blanco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1101 | 1080 | Phylloscartes ventralis | Tyrannidae | mosqueta común | Aves | Chordata | Animales | 
| 1102 | 1081 | Phymata sp. | Phymatidae | Hemiptera | Arthropoda | Animales | |
| 1103 | 1082 | Physalis viscosa | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1104 | 1083 | Phytocoris bonaerensis | Miridae | Hemiptera | Arthropoda | Animales | |
| 1105 | 1084 | Phytocoris cylapinus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1106 | 1085 | Phytocoris effictus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1107 | 1086 | Phytolacca americana | Phytolaccaceae | uva de España | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1108 | 1087 | Phytolacca dioica | Phytolaccaceae | ombú | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1109 | 1088 | Phytotoma rutila | Cotingidae | cortarramas | Aves | Chordata | Animales | 
| 1110 | 1089 | Piaya cayana | Cuculidae | tingazú | Aves | Chordata | Animales | 
| 1111 | 1090 | Picoides mixtus | Picidae | carpintero bataraz chico | Aves | Chordata | Animales | 
| 1112 | 1091 | Picris echioides | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1113 | 1092 | Picrosia longifolia | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1114 | 1525 | Picumnus cirratus | Picidae | carpinterito común | Aves | Chordata | Animales | 
| 1115 | 1093 | Piezodorus guildini | Pentatomidae | Hempitera | Arthropoda | Animales | |
| 1116 | 1094 | Pimelodus albicans | Pimelodidae | bagre blanco | Actinopterygii | Chordata | Animales | 
| 1117 | 1095 | Pimelodus clarias | Pimelodidae | Actinopterygii | Chordata | Animales | |
| 1118 | 1096 | Pimelodus maculatus | Pimelodidae | bagre amarillo | Actinopterygii | Chordata | Animales | 
| 1119 | 1097 | Pionus maximiliani | Psittacidae | loro maitaca | Aves | Chordata | Animales | 
| 1120 | 1098 | Pipraeidea melanonota | Thraupidae | saíra de antifaz | Aves | Chordata | Animales | 
| 1121 | 1099 | Piranga flava | Thraupidae | fueguero común | Aves | Chordata | Animales | 
| 1122 | 1100 | Pistia stratiotes | Araceae | repollito de agua | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1123 | 1101 | Pitangus sulphuratus | Tyrannidae | benteveo común | Aves | Chordata | Animales | 
| 1124 | 1102 | Pittosporum tobira | Pittosporaceae | azarero | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1125 | 1103 | Pittosporum undulatum | Pittosporaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1126 | 1104 | Plagiocheilus tenacetoides | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1127 | 1105 | Plagioplatys vagans | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1128 | 1106 | Plantago lanceolata | Plantaginaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1129 | 1107 | Plantago major | Plantaginaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1130 | 1108 | Plantago tomentosa | Plantaginaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1131 | 1109 | Platanus x acerifolia | Platanaceae | plátano | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1132 | 1110 | Plegadis chihi | Threskiornithidae | cuervillo de cañada | Aves | Chordata | Animales | 
| 1133 | 1111 | Pleuroxus sp. | Chydoridae | Crustacea | Arthropoda | Animales | |
| 1134 | 1112 | Pluchea sagittalis | Asteraceae | yerba lucera | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1135 | 1113 | Pluvialis dominica | Charadriidae | chorlo pampa | Aves | Chordata | Animales | 
| 1136 | 1114 | Pnirontis scorpionia | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 1137 | 1115 | Poa annua | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1138 | 1540 | Podager nacunda | Caprimulgidae | ñacundá | Aves | Chordata | Animales | 
| 1139 | 1116 | Podicephorus major | Podicipedidae | macá grande | Aves | Chordata | Animales | 
| 1140 | 1117 | Podiceps occipitalis | Podicipedidae | macá plateado | Aves | Chordata | Animales | 
| 1141 | 1118 | Podilymbus podiceps | Podicipedidae | macá pico grueso | Aves | Chordata | Animales | 
| 1142 | 1119 | Podonectes (Pseudis) minutus | Hylidae | Anura | Chordata | Animales | |
| 1143 | 1120 | Polioptila dumicola | Polioptilidae | tacuarita azul | Aves | Chordata | Animales | 
| 1144 | 1121 | Polites vibex catilina | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1145 | 1122 | Polyarthra trigla | Synchaetidae | Ploima | Rotifera | Animales | |
| 1146 | 1123 | Polybetes rapidus | Sparassidae | Araneae | Arthropoda | Animales | |
| 1147 | 1124 | Polybetes sp. | Sparassidae | Araneae | Arthropoda | Animales | |
| 1148 | 1125 | Polybia occidentalis | Vespidae | camoatí | Hymenoptera | Arthropoda | Animales | 
| 1149 | 1126 | Polybia scutellaris | Vespidae | camoatí | Hymenoptera | Arthropoda | Animales | 
| 1150 | 1127 | Polygonum aviculare | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1151 | 1128 | Polygonum chilensis | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1152 | 1129 | Polygonum ferrugineum | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1153 | 1130 | Polygonum hispidum | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1154 | 1131 | Polygonum hydropiperoides | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1155 | 1132 | Polygonum lapathifolium | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1156 | 1133 | Polygonum persicaria | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1157 | 1134 | Polygonum punctatum | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1158 | 1135 | Polygonum stelligerum | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1159 | 1136 | Polymnia connata | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1160 | 1137 | Polypogon elongatus | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1161 | 1138 | Polypogon monspeliensis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1162 | 1139 | Polypogon viridis | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1163 | 1140 | Polysticus pectoralis | Tyrannidae | tachurí canela | Aves | Chordata | Animales | 
| 1164 | 1141 | Pontederia lanceolata | Pontederiaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1165 | 1142 | Poospiza lateralis | Emberizidae | monterita litoraleña | Aves | Chordata | Animales | 
| 1166 | 1143 | Poospiza melanoleuca | Emberizidae | monterita cabeza negra | Aves | Chordata | Animales | 
| 1167 | 1144 | Poospiza nigrorufa | Emberizidae | sietevestidos | Aves | Chordata | Animales | 
| 1168 | 1145 | Poospiza ornata | Emberizidae | monterita canela | Aves | Chordata | Animales | 
| 1169 | 1146 | Poospiza torquata | Emberizidae | monterita de collar | Aves | Chordata | Animales | 
| 1170 | 1147 | Populus alba | Salicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1171 | 1148 | Populus nigra | Salicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1172 | 1149 | Populus sp. | Salicaceae | álamo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1173 | 1150 | Porphyrio martinicus | Rallidae | pollona azul | Aves | Chordata | Animales | 
| 1174 | 1151 | Porpomiris picturatus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1175 | 1152 | Portulaca oleracea | Portulacaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1176 | 1556 | Porzana flaviventer | Rallidae | burrito amarillo | Aves | Chordata | Animales | 
| 1177 | 1153 | Potamogeton uruguayensis | Potamogetonaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1178 | 1154 | Pouteria salicifolia | Sapotaceae | mataojo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1179 | 1155 | Pristina sp. | Naididae | Oligochaeta | Annelida | Animales | |
| 1180 | 1156 | Proba fraudulenta | Miridae | Hemiptera | Arthropoda | Animales | |
| 1181 | 1157 | Prochilodus lineatus | Prochilodontidae | sábalo | Actinopterygii | Chordata | Animales | 
| 1182 | 1158 | Progne chalybea | Hirundinidae | golondrina doméstica | Aves | Chordata | Animales | 
| 1183 | 1159 | Progne modesta | Hirundinidae | golondrina negra | Aves | Chordata | Animales | 
| 1184 | 1160 | Pronoterus sp. | Noteridae | Coleoptera | Arthropoda | Animales | |
| 1185 | 1161 | Prosopis alba | Fabaceae | algarrobo blanco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1186 | 1162 | Prosopis alpataco | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1187 | 1163 | Prunus sp. | Rosaceae | duraznero | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1188 | 1164 | Prytanes sp. | Rhyparochromidae | Hemiptera | Arthropoda | Animales | |
| 1189 | 1165 | Pseudacteon borgmeieri | Phoridae | Diptera | Arthropoda | Animales | |
| 1190 | 1166 | Pseudacteon comatus | Phoridae | Diptera | Arthropoda | Animales | |
| 1191 | 1167 | Pseudacteon curvatus | Phoridae | Diptera | Arthropoda | Animales | |
| 1192 | 1168 | Pseudacteon litoralis | Phoridae | Diptera | Arthropoda | Animales | |
| 1193 | 1169 | Pseudacteon nudicornis | Phoridae | Diptera | Arthropoda | Animales | |
| 1194 | 1170 | Pseudacteon obtusus | Phoridae | Diptera | Arthropoda | Animales | |
| 1195 | 1171 | Pseudacteon tricuspis | Phoridae | Diptera | Arthropoda | Animales | |
| 1196 | 1172 | Pseudautomeris grammivora | Saturniidae | Lepidoptera | Arthropoda | Animales | |
| 1197 | 1173 | Pseudocolopterix flaviventris | Tyrannidae | doradito común | Aves | Chordata | Animales | 
| 1198 | 1174 | Pseudocolopterix sclateri | Tyrannidae | doradito copetón | Aves | Chordata | Animales | 
| 1199 | 1549 | Pseudocolopteryx acutipennis | Tyrannidae | doradito oliváceo | Aves | Chordata | Animales | 
| 1200 | 1175 | Pseudoleistes virescens | Icteridae | pecho amarillo común | Aves | Chordata | Animales | 
| 1201 | 1176 | Pseudomyrmex sp. | Formicidae | Hymenoptera | Arthropoda | Animales | |
| 1202 | 1177 | Pseudopaludicola falcipes | Leptodactylinae | Anura | Chordata | Animales | |
| 1203 | 1178 | Psilochata chalybea | Muscidae | Diptera | Arthropoda | Animales | |
| 1204 | 1179 | Psilochata pampiana | Muscidae | Diptera | Arthropoda | Animales | |
| 1205 | 1180 | Psorophora albigenu | Culicidae | Diptera | Arthropoda | Animales | |
| 1206 | 1181 | Psorophora albipes | Culicidae | Diptera | Arthropoda | Animales | |
| 1207 | 1182 | Psorophora ciliata | Culicidae | Diptera | Arthropoda | Animales | |
| 1208 | 1183 | Psorophora cyanescens | Culicidae | Diptera | Arthropoda | Animales | |
| 1209 | 1184 | Psorophora discrucians | Culicidae | Diptera | Arthropoda | Animales | |
| 1210 | 1185 | Psorophora ferox | Culicidae | Diptera | Arthropoda | Animales | |
| 1211 | 1186 | Psorophora varinervis | Culicidae | Diptera | Arthropoda | Animales | |
| 1212 | 1187 | Pteris longifolia | Polypodiaceae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 1213 | 1188 | Pyracantha coccinea | Rosaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1214 | 1189 | Pyrgus orcus | Hesperiidae | Ajedrezada común | Lepidoptera | Arthropoda | Animales | 
| 1215 | 1190 | Pyrgus orcynoides | Hesperiidae | Ajedrezada menor | Lepidoptera | Arthropoda | Animales | 
| 1216 | 1191 | Pyrocephalus rubinus | Tyrannidae | churrinche | Aves | Chordata | Animales | 
| 1217 | 1192 | Pyrophorus punctatissimus | Elateridae | Coleoptera | Arthropoda | Animales | |
| 1218 | 1193 | Pyrophorus sp (posible punctatissimus) | Elateridae | Coleoptera | Arthropoda | Animales | |
| 1219 | 1194 | Pyrrhura frontalis | Psittacidae | chiripepé cabeza verde | Aves | Chordata | Animales | 
| 1220 | 1195 | Pyrrhura molinae | Psittacidae | chiripepé cabeza parda | Aves | Chordata | Animales | 
| 1221 | 1196 | Quinta cannae | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1222 | 1197 | Ranunculus apiifolius | Ranunculaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1223 | 1198 | Raphanus sativus | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1224 | 1199 | Rapistrum rugosum | Brassicaceae | mostacilla | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1225 | 1200 | Rasahus hamatus | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 1226 | 1201 | Rattus norvegicus | Muridae | Mammalia | Chordata | Animales | |
| 1227 | 1202 | Ravenelia platensis | No determinada | Pucciniomycetes | Basidiomycota | Fungi | |
| 1228 | 1203 | Ravinia sueta | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1229 | 1204 | Rekoa malina | Lycaenidae | Lepidoptera | Arthropoda | Animales | |
| 1230 | 1205 | Rhantus signatus signatus | Dytiscidae | Diptera | Arthropoda | Animales | |
| 1231 | 1206 | Rhinacloa sp. | Miridae | Hemiptera | Arthropoda | Animales | |
| 1232 | 1207 | Rhinella arenarum | Bufonidae | Anura | Chordata | Animales | |
| 1233 | 1208 | Rhinella fernandezae | Bufonidae | sapito cavador | Anura | Chordata | Animales | 
| 1234 | 1209 | Rhizopus arrhizus | Mucoraceae | Zygomycetes | Zygomycetes | Fungi | |
| 1235 | 1210 | Rhyncospora corymbosa var. bonariensis | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1236 | 1211 | Ricinus communis | Euphorbiaceae | ricino | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1237 | 1212 | Riodina lycisca lysistratus | Riodinidae | Lepidoptera | Arthropoda | Animales | |
| 1238 | 1213 | Riodina lysippoides | Riodinidae | Danzarina chica | Lepidoptera | Arthropoda | Animales | 
| 1239 | 1214 | Riparia riparia | Hirundinidae | golondrina zapadora | Aves | Chordata | Animales | 
| 1240 | 1215 | Robinia pseudoacacia | Fabaceae | acacia blanca | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1241 | 1216 | Rollandia rolland | Podicipedidae | macá común | Aves | Chordata | Animales | 
| 1242 | 1217 | Romaleinae no determinada | Acrididae | langosta | Orthoptera | Arthropoda | Animales | 
| 1243 | 1218 | Rorippa hilariana | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1244 | 1219 | Rorippa islandica | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1245 | 1220 | Rosa multiflora | Rosaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1246 | 1221 | Rosa sp. | Rosaceae | rosa | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1247 | 1222 | Rosthramus sociabilis | Accipitridae | caracolero | Aves | Chordata | Animales | 
| 1248 | 1223 | Rotaria sp. | Philodinidae | Bdelloidea | Rotifera | Animales | |
| 1249 | 1535 | Rothschildia jacobaeae | Saturniidae | Mariposa de las chilcas | Lepidoptera | Arthropoda | Animales | 
| 1250 | 1224 | Rumex crispus | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1251 | 1225 | Rumex paraguayensis | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1252 | 1226 | Rumex pulcher | Polygonaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1253 | 1227 | Rynchops nigra | Laridae | rayador | Aves | Chordata | Animales | 
| 1254 | 1228 | Sagittaria montevidensis | Alismataceae | sagitaria | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1255 | 1229 | Saitis variegatus | Salticidae | Araneae | Arthropoda | Animales | |
| 1256 | 1230 | Saldula coxalis | Saldidae | Hemiptera | Arthropoda | Animales | |
| 1257 | 1231 | Saldula penningtoni | Saldidae | Hemiptera | Arthropoda | Animales | |
| 1258 | 1232 | Salix humboldtiana | Salicaceae | sauce criollo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1259 | 1233 | Salix spp. | Salicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1260 | 1234 | Salpichroa origanifolia | Solanaceae | huevito de gallo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1261 | 1235 | Saltator aurantiirostris | Emberizidae | pepitero de collar | Aves | Chordata | Animales | 
| 1262 | 1236 | Saltator coerulescens | Emberizidae | pepitero gris | Aves | Chordata | Animales | 
| 1263 | 1237 | Saltator similis | Emberizidae | pepitero verdoso | Aves | Chordata | Animales | 
| 1264 | 1238 | Saltratricula multicolor | Emberizidae | pepitero chico | Aves | Chordata | Animales | 
| 1265 | 1239 | Salvia coccinea | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1266 | 1240 | Salvinia auriculata Aubl | salviniaceae | helechito de agua | Eudicotiledoneae | Angiospermae | Plantas verdes | 
| 1267 | 1241 | Salvinia biloba | Salviniaceae | helechito de agua | Polypodiidae | Polypodiopsida | Plantas verdes | 
| 1268 | 1242 | Salvinia minima Baker | Salvinaceae | Eudicotiledoneae | Angiospermae | Plantas verdes | |
| 1269 | 1243 | Salvinia rotundifolia | Salviniaceae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 1270 | 1244 | Sambucus australis | Caprifoliaceae | sauco | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1271 | 1245 | Sanogasta maculatipes | Anyphaenidae | Araneae | Arthropoda | Animales | |
| 1272 | 1246 | Sapium haematospermum | Euphorbiaceae | curupí | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1273 | 1247 | Sarconesia chlorogaster | Calliphoridae | Diptera | Arthropoda | Animales | |
| 1274 | 1248 | Sarcophaga (Liopygia) argyrostoma | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1275 | 1249 | Sarcophaga (Liopygia) crassipalpis | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1276 | 1250 | Sarcophaga (Lipoptilocnema) koehleri | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1277 | 1251 | Sarcophaga (Lipoptilocnema) lanei | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1278 | 1253 | Sarinda sp. | Salticidae | Araneae | Arthropoda | Animales | |
| 1279 | 1252 | Sarinda sp1 | Salticidae | araña saltarina | Araneae | Arthropoda | Animales | 
| 1280 | 1254 | Satrapa icterophys | Tyrannidae | suirirí amarillo | Aves | Chordata | Animales | 
| 1281 | 1255 | Schinus longifolius | Anacardiaceae | molle | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1282 | 1256 | Schinus molle | Anacardiaceae | aguaribay | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1283 | 1531 | Schistocerca cancellata | Acrididae | Langosta | Orthoptera | Arthropoda | Animales | 
| 1284 | 1257 | Schizachirium mycrostachium | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1285 | 1258 | Schoeniophylax phryganophila | Furnaridae | chotoy | Aves | Chordata | Animales | 
| 1286 | 1259 | Schoenoplectus californicus | Cyperaceae | junco | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1287 | 1260 | Scinax granulatus (=eringiophila) | Hylidae | Anura | Chordata | Animales | |
| 1288 | 1261 | Scirpus americanus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1289 | 1262 | Scirpus giganteus | Cyperaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1290 | 1263 | Scolecura sp | Linyphiidae | Araneae | Arthropoda | Animales | |
| 1291 | 1529 | Scotobius miliaris | Tenebrionidae | Escarabajo de arena | Coleoptera | Arthropoda | Animales | 
| 1292 | 1264 | Scotobius sp. | Tenebrionidae | Coleoptera | Arthropoda | Animales | |
| 1293 | 1265 | Scutia buxifolia | Rhamnaceae | coronillo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1294 | 1266 | Scytodes globula | Scytodidae | araña escupidora | Araneae | Arthropoda | Animales | 
| 1295 | 1267 | Sebastiana brasilensis | Euphorbiaceae | blanquillo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1296 | 1268 | Sechium edule | Cucurbitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1297 | 1269 | Senecio bonariensis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1298 | 1270 | Senecio brasiliensis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1299 | 1271 | Senecio grisebanchii | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1300 | 1272 | Senecio madagascariensis | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1301 | 1273 | Senecio pinnatus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1302 | 1274 | Senecio selloi | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1303 | 1275 | Senna corymbosa | Fabaceae | sen del campo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1304 | 1276 | Sericophanes aornatus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1305 | 1277 | Sericophanes clarus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1306 | 1278 | Sericophanes sp | Miridae | Hemiptera | Arthropoda | Animales | |
| 1307 | 1279 | Sericophanes tigrensis | Miridae | Hemiptera | Arthropoda | Animales | |
| 1308 | 1550 | Serinus canaria | Fringillidae | canario | Aves | Chordata | Animales | 
| 1309 | 1280 | Serpophaga griseiceps | Tyrannidae | piojito trinador | Aves | Chordata | Animales | 
| 1310 | 1281 | Serpophaga nigricans | Tyrannidae | piojito gris | Aves | Chordata | Animales | 
| 1311 | 1282 | Serpophaga subcristata | Tyrannidae | piojito común | Aves | Chordata | Animales | 
| 1312 | 1283 | Sesbania punicea | Fabaceae | acacia mansa | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1313 | 1284 | Sesbania virgata | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1314 | 1285 | Setaria geniculata | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1315 | 1286 | Setaria parviflora | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1316 | 1287 | Setaria verticillata | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1317 | 1288 | Sicalis flaveola | Emberizidae | jilguero dorado | Aves | Chordata | Animales | 
| 1318 | 1289 | Sicalis luteola | Emberizidae | misto | Aves | Chordata | Animales | 
| 1319 | 1290 | Sida rhombifolia | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1320 | 1291 | Sida spinosa | Malvaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1321 | 1292 | Sigara denseconscripta | Corixidae | Hemiptera | Arthropoda | Animales | |
| 1322 | 1293 | Sigara platensis | Corixidae | Hemiptera | Arthropoda | Animales | |
| 1323 | 1294 | Sigara rubyae | Corixidae | Hemiptera | Arthropoda | Animales | |
| 1324 | 1295 | Sigara schadei | Corixidae | Hemiptera | Arthropoda | Animales | |
| 1325 | 1296 | Silene antirrhina | Caryophyllaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1326 | 1297 | Silene gallica | Caryophyllaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1327 | 1298 | Simocephalus sp. | Daphnidae | Crustacea | Arthropoda | Animales | |
| 1328 | 1299 | Sirthenea stria | Reduviidae | Hemiptera | Arthropoda | Animales | |
| 1329 | 1300 | Sisymbrium orientale | Brassicaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1330 | 1301 | Sisyrinchium platense | Iridaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1331 | 1302 | Sisyrinchum iridifolium | Iridaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1332 | 1303 | Smalanthus connatus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1333 | 1304 | Smilax campestris | Smilaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1334 | 1305 | Solanum amygdalifolium | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1335 | 1306 | Solanum bonariense | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1336 | 1307 | Solanum chenopodioides | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1337 | 1308 | Solanum glaucophyllum | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1338 | 1309 | Solanum granulosum-leprosum | Solanaceae | fumo bravo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1339 | 1310 | Solanum nigrescens (= S. pilcomayense) | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1340 | 1311 | Solanum pseudocapsicum | Solanaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1341 | 1312 | Solanum sisymbriifolium | Solanaceae | revienta caballos | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1342 | 1313 | Solenopsis invicta | Formicidae | hormiga de fuego | Hymenoptera | Arthropoda | Animales | 
| 1343 | 1314 | Solenopsis richteri | Formicidae | hormiga de fuego | Hymenoptera | Arthropoda | Animales | 
| 1344 | 1315 | Solenopsis sp. | Formicidae | hormiga de fuego | Hymenoptera | Arthropoda | Animales | 
| 1345 | 1316 | Solidago chilensis | Asteraceae | vara dorada | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1346 | 1317 | Sonchus asper | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1347 | 1318 | Sonchus oleraceus | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1348 | 1319 | Sorghum halepense | Poaceae | sorgo de Alepo | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1349 | 1320 | sp1 | Gnaphosidae | Araneae | Arthropoda | Animales | |
| 1350 | 1321 | sp2 | Gnaphosidae | Araneae | Arthropoda | Animales | |
| 1351 | 1322 | Spanagonicus argentinus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1352 | 1323 | Spartacus entrerrianus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1353 | 1324 | Spartium junceum | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1354 | 1325 | Spartium junceum | Fabaceae | retama | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1355 | 1326 | Spartocera sp. | Coreidae | Hemiptera | Arthropoda | Animales | |
| 1356 | 1327 | Spartonoica maluroides | Furnaridae | espartillero enano | Aves | Chordata | Animales | 
| 1357 | 1328 | Sphaeralcea bonariensis | Malvaceae | fera | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1358 | 1329 | Sphecozone cf. ignigena | Linyphiidae | Araneae | Arthropoda | Animales | |
| 1359 | 1330 | Spheniscus magellanica | Spheniscidae | pinguino patagónico | Aves | Chordata | Animales | 
| 1360 | 1331 | Spilanthes decumbens | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1361 | 1332 | Sporobolus indicus | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1362 | 1333 | Sporophila caerulescens | Emberizidae | corbatita común | Aves | Chordata | Animales | 
| 1363 | 1334 | Sporophila cinamomea | Emberizidae | capuchino corona gris | Aves | Chordata | Animales | 
| 1364 | 1335 | Sporophila collaris | Emberizidae | corbatita dominó | Aves | Chordata | Animales | 
| 1365 | 1336 | Sporophila hypochroma | Emberizidae | capuchino castaño | Aves | Chordata | Animales | 
| 1366 | 1337 | Sporophila hypoxantha | Emberizidae | capuchino canela | Aves | Chordata | Animales | 
| 1367 | 1338 | Sporophila lineola | Emberizidae | corbatita overo | Aves | Chordata | Animales | 
| 1368 | 1339 | Sporophila ruficollis | Emberizidae | capuchino garganta café | Aves | Chordata | Animales | 
| 1369 | 1340 | Sporothrix schenckii | Ophiostomataceae | Sordariomycetes | Ascomycota | Fungi | |
| 1370 | 1341 | Spyrogira sp. | Zygnemataceae | Zygnematales | Zygnematales | Plantas verdes | |
| 1371 | 1342 | Steatoda retorta | Theridiidae | Araneae | Arthropoda | Animales | |
| 1372 | 1343 | Stelgidopteryx fucata | Hirundinidae | golondrina cabeza rojiza | Aves | Chordata | Animales | 
| 1373 | 1344 | Stelgidopteryx ruficolli | Hirundinidae | golondrina ribereña | Aves | Chordata | Animales | 
| 1374 | 1345 | Stenocrepis laevigata | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1375 | 1346 | Stenocrepis punctatostriata | Carabidae | Coleoptera | Arthropoda | Animales | |
| 1376 | 1347 | Stenotaphrum secundatum | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1377 | 1348 | Stephanophorus diadematus | Thraupidae | frutero azul | Aves | Chordata | Animales | 
| 1378 | 1554 | Stercorarius antarticus | Stercorariidae | escúa antártica | Aves | Chordata | Animales | 
| 1379 | 1546 | Stercorarius chilensis | Stercorariidae | escúa común | Aves | Chordata | Animales | 
| 1380 | 1349 | Sterna antillarum | Laridae | Aves | Chordata | Animales | |
| 1381 | 1350 | Sterna hirudinacea | Laridae | gaviotín sudamericano | Aves | Chordata | Animales | 
| 1382 | 1547 | Sterna maxima | Laridae | gaviotín real | Aves | Chordata | Animales | 
| 1383 | 1351 | Sterna nilotica | Laridae | gaviotín pico grueso | Aves | Chordata | Animales | 
| 1384 | 1352 | Sterna superciliaris | Laridae | gaviotín chico común | Aves | Chordata | Animales | 
| 1385 | 1353 | Sterna trudeaui | Laridae | gaviotín lagunero | Aves | Chordata | Animales | 
| 1386 | 1354 | Stigmaphyllon bonariense | Malphigiaceae | papa de río | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1387 | 1355 | Stipa ambigua | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1388 | 1356 | Stipa caudata | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1389 | 1357 | Stipa hyalina | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1390 | 1358 | Stipa neesiana | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1391 | 1359 | Stipa papposa | Poaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1392 | 1360 | Strymon bazochii | Lycaenidae | Frotadora enana | Lepidoptera | Arthropoda | Animales | 
| 1393 | 1361 | Strymon eurytulus | Lycaenidae | Lepidoptera | Arthropoda | Animales | |
| 1394 | 1362 | Sturnella loyca | Icteridae | loica común | Aves | Chordata | Animales | 
| 1395 | 1363 | Sturnella superciliaris | Icteridae | pecho colorado | Aves | Chordata | Animales | 
| 1396 | 1364 | Sturnus vulgaris | Sturnidae | estornino pinto | Aves | Chordata | Animales | 
| 1397 | 1365 | Styphnolobium japonicum | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1398 | 1366 | Suiriri suiriri | Tyrannidae | suirirí común | Aves | Chordata | Animales | 
| 1399 | 1367 | Suphis sp. | Noteridae | Coleoptera | Arthropoda | Animales | |
| 1400 | 1368 | Suphisellus sp | Noteridae | Coleoptera | Arthropoda | Animales | |
| 1401 | 1369 | Syagrus romanzoffiana | Arecaceae | pindó | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1402 | 1370 | Synaemops pugilator | Thomisidae | araña cangrejo | Araneae | Arthropoda | Animales | 
| 1403 | 1371 | Synallaxis albescens | Furnaridae | pijuí cola parda | Aves | Chordata | Animales | 
| 1404 | 1372 | Synallaxis frontalis | Furnaridae | pijuí frente gris | Aves | Chordata | Animales | 
| 1405 | 1373 | Synallaxis spixi | Furnaridae | pijuí plomizo | Aves | Chordata | Animales | 
| 1406 | 1374 | Synbranchus marmoratus | Synbranchidae | anguila criolla | Actinopterygii | Chordata | Animales | 
| 1407 | 1375 | Synemosyna sp. | Salticidae | Araneae | Arthropoda | Animales | |
| 1408 | 1376 | Synthesiomyia nudiseta | Muscidae | Diptera | Arthropoda | Animales | |
| 1409 | 1377 | Syrigma sibilatrix | Ardeidae | chiflón | Aves | Chordata | Animales | 
| 1410 | 1378 | Systelloderes sp. | Enicocephalidae | Hemiptera | Arthropoda | Animales | |
| 1411 | 1379 | Tachuris rubrigastra | Tyrannidae | tachurí sietecolores | Aves | Chordata | Animales | 
| 1412 | 1544 | Tachybaptus dominicus | Podicipedidae | macá gris | Aves | Chordata | Animales | 
| 1413 | 1380 | Tachycineta leucorrhoa | Hirundinidae | golondrina ceja blanca | Aves | Chordata | Animales | 
| 1414 | 1381 | Tachycineta meyeni | Hirundinidae | golondrina patagónica | Aves | Chordata | Animales | 
| 1415 | 1382 | Tachyphonus rufus | Thraupidae | frutero negro | Aves | Chordata | Animales | 
| 1416 | 1383 | Tadarida brasiliensis | Molossidae | moloso común | Mammalia | Chordata | Animales | 
| 1417 | 1384 | Talaromyces flavus | Eurotiomycetidae | Eurotiomycetes | Ascomycota | Fungi | |
| 1418 | 1385 | Tapera naevia | Cuculidae | crespín | Aves | Chordata | Animales | 
| 1419 | 1386 | Taraxacum officinale | Asteraceae | diente de león | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1420 | 1387 | Tarentola mauritanica | Gekkonidae | salamanquesa | Lepidosauria | Chordata | Animales | 
| 1421 | 1388 | Tatochila autodice | Pieridae | lechera común | Lepidoptera | Arthropoda | Animales | 
| 1422 | 1389 | Tatochila mercedis vanvolxemi | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 1423 | 1390 | Taylorilygus apicalis | Miridae | Hemiptera | Arthropoda | Animales | |
| 1424 | 1391 | Taylorilygus tenuis | Miridae | Hemiptera | Arthropoda | Animales | |
| 1425 | 1392 | Tegosa claudina | Nymphalidae | claudina | Lepidoptera | Arthropoda | Animales | 
| 1426 | 1393 | Teleonomia sp. | Tingidae | Hemiptera | Arthropoda | Animales | |
| 1427 | 1394 | Terminalia australis | Combretaceae | palo amarillo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1428 | 1395 | Tessaria absinthioides | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1429 | 1396 | Tessaria integrifolia | Asteraceae | buibé | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1430 | 1397 | Tetrastigma voinieranum | Vitaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1431 | 1398 | Teucrium vesicarium | Lamiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1432 | 1399 | Thamnodynastes strigatus (hypoconia) | Colubridae | falsa yarará | Lepidosauria | Chordata | Animales | 
| 1433 | 1400 | Thamnodynastes strigilis | Colubridae | Lepidosauria | Chordata | Animales | |
| 1434 | 1401 | Thamnophilus caerulescens | Thamnophilidae | choca común | Aves | Chordata | Animales | 
| 1435 | 1402 | Thamnophilus ruficapillus | Thamnophilidae | choca corona rojiza | Aves | Chordata | Animales | 
| 1436 | 1403 | Thaumastocoris peregrinus | Thaumastocoridae | Hemiptera | Arthropoda | Animales | |
| 1437 | 1404 | Theagenes dichrous | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1438 | 1405 | Thelypteris riograndensis | Thelypteridacecae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 1439 | 1406 | Theochila maenacte | Pieridae | Lepidoptera | Arthropoda | Animales | |
| 1440 | 1407 | Theridion calcynatum | Theridiidae | Araneae | Arthropoda | Animales | |
| 1441 | 1408 | Thermonectus succinctus | Dytiscidae | Diptera | Arthropoda | Animales | |
| 1442 | 1409 | Thinocorus rumicivorus | Thinocoridae | agachona chica | Aves | Chordata | Animales | 
| 1443 | 1410 | Thiodina aff. germaini | Salticidae | Araneae | Arthropoda | Animales | |
| 1444 | 1411 | Thomisidae sp1 | Thomisidae | araña cangrejo | Araneae | Arthropoda | Animales | 
| 1445 | 1413 | Thomisidae sp110118 | Thomisidae | Araneae | Arthropoda | Animales | |
| 1446 | 1412 | Thomisidae sp2 | Thomisidae | araña cangrejo | Araneae | Arthropoda | Animales | 
| 1447 | 1414 | Thoreyella sp. | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 1448 | 1415 | Thrasychirus sp. | Neopilionidae | Opiliones | Arthropoda | Animales | |
| 1449 | 1416 | Thraupis bonariensis | Thraupidae | naranjero | Aves | Chordata | Animales | 
| 1450 | 1417 | Thraupis sayaca | Thraupidae | celestino | Aves | Chordata | Animales | 
| 1451 | 1418 | Thunbergia alata Bojer | Acanthaceae | Ojitos negros | Eudicotiledoneae | Angiospermae | Plantas verdes | 
| 1452 | 1419 | Thyanta aeruginosa | Pentatomidae | Hemiptera | Arthropoda | Animales | |
| 1453 | 1420 | Thygater analis | Apidae | Apidae | Hymenoptera | Animales | |
| 1454 | 1421 | Thymoites cf villarricaensis | Theridiidae | Araneae | Arthropoda | Animales | |
| 1455 | 1422 | Tigrisoma lineatum | Ardeidae | hocó colorado | Aves | Chordata | Animales | 
| 1456 | 1423 | Tillandsia aeranthos | Bromeliaceae | clavel del aire | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1457 | 1424 | Tipuana tipa | Fabaceae | tipa | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1458 | 1425 | Tmarus sp1 | Thomisidae | araña cangrejo | Araneae | Arthropoda | Animales | 
| 1459 | 1426 | Tomodon ocellatus | Colubridae | Lepidosauria | Chordata | Animales | |
| 1460 | 1427 | Torvochrimnus cinctipennis | Lygidae | Hemiptera | Arthropoda | Animales | |
| 1461 | 1428 | Trachemys dorbigni | Emydidae | tortuga pintada | Chelonii | Chordata | Animales | 
| 1462 | 1429 | Trachemys scripta elegans | Emydidae | tortuga de orejas rojas | Chelonii | Chordata | Animales | 
| 1463 | 1430 | Trachycarpus fortunei | Arecaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1464 | 1434 | Tradescantia (Zebrina) pendula | Commelinaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1465 | 1431 | Tradescantia crassifolia | Commelinaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1466 | 1432 | Tradescantia fluminensis | Commelinaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1467 | 1433 | Tradescantia purpurea | Commelinaceae | lengua de suegra | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1468 | 1435 | Trematodon sp. | Bruchiaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1469 | 1436 | Tribulus terrestris | Zygophyllaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1470 | 1437 | Tricharaea (Sarcophagula) occidua | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1471 | 1438 | Tricharaea (Tricharaeaa) brevicornis | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1472 | 1439 | Trichocentrus sp | Colobathristidae | Hemiptera | Arthropoda | Animales | |
| 1473 | 1440 | Trichocorixa mendozana | Corixidae | Hemiptera | Arthropoda | Animales | |
| 1474 | 1441 | Trichoderma harzianum | Hypocreaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1475 | 1442 | Trichoderma koningii | Hypocreaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1476 | 1443 | Trichoderma pseudokoningii | Hypocreaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1477 | 1444 | Trichoderma reesei | Hypocreaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1478 | 1445 | Trichoderma viride | Hypocreaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1479 | 1446 | Trichosporiella cerebriformis | Incertae sedis | Leotiomycetes | Ascomycota | Fungi | |
| 1480 | 1447 | Trifolium repens | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1481 | 1448 | Tringa flavipes | Scolopacidae | pitotoy chico | Aves | Chordata | Animales | 
| 1482 | 1449 | Tringa melanoleuca | Scolopacidae | pitotoy grande | Aves | Chordata | Animales | 
| 1483 | 1450 | Tringa solitaria | Scolopacidae | pitotoy solitario | Aves | Chordata | Animales | 
| 1484 | 1451 | Triplogyna ignitula | Linyphiidae | Araneae | Arthropoda | Animales | |
| 1485 | 1452 | Tripogandra diuretica | Commelinaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1486 | 1453 | Trismeria trifoliata | Pteridaceae | Polypodiidae | Polypodiopsida | Plantas verdes | |
| 1487 | 1454 | Trixis praestans | Asteraceae | tabaquillo de monte | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1488 | 1455 | Troglodytes aedon | Troglodytidae | ratona | Aves | Chordata | Animales | 
| 1489 | 1456 | Tropaeolum majus | Tropeolaceae | taco de reina | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1490 | 1457 | Tropisternus ignoratus | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 1491 | 1458 | Tropisternus lateralis | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 1492 | 1459 | Tropisternus setiger | Hydrophilidae | Coleoptera | Arthropoda | Animales | |
| 1493 | 1460 | Tupinambis merianae | Teiidae | lagarto overo | Lepidosauria | Chordata | Animales | 
| 1494 | 1461 | Tupinambis rufescens | Teiidae | lagarto colorado | Lepidosauria | Chordata | Animales | 
| 1495 | 1462 | Tupiocoris chlorogaster | Miridae | Hemiptera | Arthropoda | Animales | |
| 1496 | 1463 | Tupiocoris cucurbitaceus | Miridae | Hemiptera | Arthropoda | Animales | |
| 1497 | 1464 | Turdus amaurochalinus | Turdidae | zorzal chalchalero | Aves | Chordata | Animales | 
| 1498 | 1465 | Turdus chiguanco | Turdidae | zorzal chiguanco | Aves | Chordata | Animales | 
| 1499 | 1466 | Turdus rufiventris | Turdidae | zorzal colorado | Aves | Chordata | Animales | 
| 1500 | 1467 | Tutaibo velox | Linyphiidae | Araneae | Arthropoda | Animales | |
| 1501 | 1468 | Typha latifolia | Typhaceae | totora | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1502 | 1469 | Tyrannus melancholicus | Tyrannidae | suirirí real | Aves | Chordata | Animales | 
| 1503 | 1470 | Tyrannus savana | Tyrannidae | tijereta | Aves | Chordata | Animales | 
| 1504 | 1471 | Tyto alba | Tytonidae | lechuza de campanario | Aves | Chordata | Animales | 
| 1505 | 1472 | Tytthus sp. | Miridae | Hemiptera | Arthropoda | Animales | |
| 1506 | 1473 | Udamopyga smagra | Sarcophagidae | Diptera | Arthropoda | Animales | |
| 1507 | 1474 | Uncancylus concentricus bonariensis | Planorbidae | Gastropoda | Mollusca | Animales | |
| 1508 | 1475 | Uranotaenia nataliae | Culicidae | Diptera | Arthropoda | Animales | |
| 1509 | 1476 | Urbanus zagorus | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1510 | 1477 | Urvillea uniloba | Sapindaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1511 | 1478 | Vaginula sp. | Veronicellidae | babosa | Gastropoda | Mollusca | Animales | 
| 1512 | 1479 | Vanellus chilensis | Charadriidae | tero común | Aves | Chordata | Animales | 
| 1513 | 1480 | Vanessa braziliensis | Nymphalidae | dama pintada | Lepidoptera | Arthropoda | Animales | 
| 1514 | 1481 | Vanessa carye | Nymphalidae | dama cuatro ojos | Lepidoptera | Arthropoda | Animales | 
| 1515 | 1482 | Verbascum virgatum | Scrophulariaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1516 | 1483 | Verbena bonariensis | Verbenaceae | flor de papel | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1517 | 1484 | Verbena montevidensis | Verbenaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1518 | 1485 | Verbesina encelioides | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1519 | 1486 | Veronica arvensis | Scrophulariaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1520 | 1487 | Veronica polita | Scrophulariaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1521 | 1488 | Verticillium bulbillosum | Plectosphaerellaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1522 | 1489 | Vicia angustifolia | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1523 | 1490 | Vicia sativa | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1524 | 1491 | Vicia villosa | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1525 | 1492 | Vigna adenantha | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1526 | 1493 | Vigna luteola | Fabaceae | porotillo | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1527 | 1494 | Vinca major | Apocynaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1528 | 1495 | Viola minor | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1529 | 1496 | Viola odorata | Violaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1530 | 1497 | Vireo olivaceus | Vireonidae | chiví común | Aves | Chordata | Animales | 
| 1531 | 1498 | Volatinia jacarina | Emberizidae | volatinero | Aves | Chordata | Animales | 
| 1532 | 1499 | Wallengrenia premnas | Hesperiidae | Lepidoptera | Arthropoda | Animales | |
| 1533 | 1500 | Wardomyces sp. | Microascaceae | Sordariomycetes | Ascomycota | Fungi | |
| 1534 | 1501 | Washingtonia sp. | Arecaceae | palmera washingtonia | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1535 | 1502 | Wedelia glauca | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1536 | 1503 | Westerdykella dispersa | Sporormiaceae | Dothideomycetes | Ascomycota | Fungi | |
| 1537 | 1504 | Whalembergia linaroides | Campanulaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1538 | 1505 | Wisteria sinensis | Fabaceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1539 | 1506 | Wyeomyia leucostigma | Culicidae | Diptera | Arthropoda | Animales | |
| 1540 | 1507 | Xanthium cavanillesii | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1541 | 1508 | Xanthium spinosum | Asteraceae | Eudicotyledoneae | Angiospermae | Plantas verdes | |
| 1542 | 1509 | Xenopsaris albinucha | Tyrannidae | tijerilla | Aves | Chordata | Animales | 
| 1543 | 1510 | Xolmis cinerea | Tyrannidae | monjita gris | Aves | Chordata | Animales | 
| 1544 | 1511 | Xolmis coronata | Tyrannidae | monjita coronada | Aves | Chordata | Animales | 
| 1545 | 1512 | Xolmis irupero | Tyrannidae | monjita blanca | Aves | Chordata | Animales | 
| 1546 | 1533 | Xylocopa ordinaria | Apidae | Abejorro | Hymenoptera | Arthropoda | Animales | 
| 1547 | 1513 | Xylocoris sp. | Anthocoridae | Hemiptera | Arthropoda | Animales | |
| 1548 | 1514 | Ypthimoides celmis | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 1549 | 1515 | Ypthimoides periphas | Nymphalidae | Lepidoptera | Arthropoda | Animales | |
| 1550 | 1516 | Yucca aloifolia | Agavaceae | yuca | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1551 | 1517 | Zannichellia palustris | Zannichelliaceae | Monocotiledoneae | Angiospermae | Plantas verdes | |
| 1552 | 1518 | Zantedeschia aetyopica | Araceae | cala | Monocotiledoneae | Angiospermae | Plantas verdes | 
| 1553 | 1519 | Zanthoxylum fagara | Rutaceae | tembetarí | Eudicotyledoneae | Angiospermae | Plantas verdes | 
| 1554 | 1520 | Zenaida auriculata | Columbidae | torcaza | Aves | Chordata | Animales | 
| 1555 | 1521 | Zicca sp. | Coreidae | Hemiptera | Arthropoda | Animales | |
| 1556 | 1522 | Zonotrichia capensis | Emberizidae | chingolo | Aves | Chordata | Animales | 
Cantidad total de REGISTROS de la consulta = 1556
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Reserva Ecológica Costanera Sur (RECS). Especies avistadas. República Argentina. J. Simón Tagtachian  | 
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