| abeomelomys sevia | Yes | species | eukaryota | rodents | species | 491870 | click here |
| accipiter nisus | Yes | species | eukaryota | vertebrates | species | 211598 | click here |
| achatina fulica | Yes | species | eukaryota | invertebrates | species | 6530 | click here |
| acinonyx jubatus | Yes | species | eukaryota | mammals | species | 32536 | click here |
| acrocephalus scirpaceus | Yes | species | eukaryota | vertebrates | species | 48156 | click here |
| addax nasomaculatus | Yes | species | eukaryota | mammals | species | 59515 | click here |
| aepyceros melampus | Yes | species | eukaryota | mammals | species | 9897 | click here |
| aepyprymnus rufescens | Yes | species | eukaryota | mammals | species | 38598 | click here |
| agriolimax | Yes | | | | | | click here |
| agriolimax agrestis | Yes | species | | | species | | click here |
| agriolimax columbianus | Yes | species | | | species | | click here |
| ailuropoda melanoleuca | Yes | species | eukaryota | mammals | species | 9646 | click here |
| ailurus fulgens | Yes | species | eukaryota | mammals | species | 9649 | click here |
| akodon montensis | Yes | species | eukaryota | rodents | species | 106112 | click here |
| alcelaphus buselaphus | Yes | species | eukaryota | mammals | species | 59517 | click here |
| alcelaphus caama | Yes | species | eukaryota | mammals | species | 59519 | click here |
| alces alces | Yes | species | eukaryota | mammals | species | 9852 | click here |
| alces alces alces | Yes | subspecies | eukaryota | mammals | subspecies | 9853 | click here |
| alces alces gigas | Yes | subspecies | eukaryota | mammals | subspecies | 341674 | click here |
| alces americanus | Yes | species | eukaryota | mammals | species | 999462 | click here |
| alectoris rufa | Yes | species | eukaryota | vertebrates | species | 9079 | click here |
| alouatta caraya | Yes | species | eukaryota | primates | species | 9502 | click here |
| alouatta seniculus | Yes | species | eukaryota | primates | species | 9503 | click here |
| alticola lemminus | Yes | species | | | species | 1472668 | click here |
| amietia delalandii | Yes | species | | | species | 1896327 | click here |
| ammotragus lervia | Yes | species | eukaryota | mammals | species | 9899 | click here |
| anas crecca | Yes | species | eukaryota | vertebrates | species | 75839 | click here |
| anaxyrus americanus | Yes | species | eukaryota | vertebrates | species | 8389 | click here |
| anser albifrons | Yes | species | eukaryota | vertebrates | species | 50365 | click here |
| anser caerulescens | Yes | species | eukaryota | vertebrates | species | 8849 | click here |
| anser caerulescens caerulescens | Yes | subspecies | eukaryota | vertebrates | subspecies | 70340 | click here |
| antechinus agilis | Yes | species | eukaryota | mammals | species | 400481 | click here |
| antechinus stuartii | Yes | species | eukaryota | mammals | species | 9283 | click here |
| antidorcas marsupialis | Yes | species | eukaryota | mammals | species | 59523 | click here |
| antilocapra americana | Yes | species | eukaryota | mammals | species | 9891 | click here |
| antilope cervicapra | Yes | species | eukaryota | mammals | species | 59525 | click here |
| aotus nancymaae | Yes | species | eukaryota | primates | species | 37293 | click here |
| apodemus agrarius | Yes | species | eukaryota | rodents | species | 39030 | click here |
| apodemus alpicola | Yes | species | eukaryota | rodents | species | 100381 | click here |
| apodemus argenteus | Yes | species | eukaryota | rodents | species | 61837 | click here |
| apodemus flavicollis | Yes | species | eukaryota | rodents | species | 54292 | click here |
| apodemus mystacinus | Yes | species | eukaryota | rodents | species | 100382 | click here |
| apodemus speciosus | Yes | species | eukaryota | rodents | species | 105296 | click here |
| apodemus sylvaticus | Yes | species | eukaryota | rodents | species | 10129 | click here |
| apodemus uralensis | Yes | species | eukaryota | rodents | species | 134910 | click here |
| apteryx rowi | Yes | species | eukaryota | vertebrates | species | 308060 | click here |
| arctocephalus australis | Yes | species | eukaryota | mammals | species | 161928 | click here |
| arctocephalus forsteri | Yes | species | eukaryota | mammals | species | 29084 | click here |
| arctocephalus gazella | Yes | species | eukaryota | mammals | species | 37190 | click here |
| arctocephalus pusillus | Yes | species | eukaryota | mammals | species | 37191 | click here |
| arctocephalus pusillus doriferus | Yes | subspecies | eukaryota | mammals | subspecies | 37193 | click here |
| arctocephalus townsendi | Yes | species | eukaryota | mammals | species | 161921 | click here |
| arianta arbustorum | Yes | species | eukaryota | invertebrates | species | 45985 | click here |
| arion | Yes | | | invertebrates | genus | 6542 | click here |
| arion circumscriptus | Yes | species | eukaryota | invertebrates | species | 194190 | click here |
| arion hortensis | Yes | species | eukaryota | invertebrates | species | 145125 | click here |
| arion vulgaris | Yes | species | | | species | 1028688 | click here |
| asio otus | Yes | species | eukaryota | vertebrates | species | 111810 | click here |
| athene noctua | Yes | species | eukaryota | vertebrates | species | 126797 | click here |
| austrelaps superbus | Yes | species | eukaryota | vertebrates | species | 29156 | click here |
| axis axis | Yes | species | eukaryota | mammals | species | 30531 | click here |
| aythya fuligula | Yes | species | eukaryota | vertebrates | species | 219594 | click here |
| bambusicola fytchii | Yes | species | eukaryota | vertebrates | species | 388974 | click here |
| bambusicola thoracicus | Yes | species | eukaryota | vertebrates | species | 9083 | click here |
| bandicota bengalensis | Yes | species | eukaryota | rodents | species | 69079 | click here |
| bandicota indica | Yes | species | eukaryota | rodents | species | 456472 | click here |
| bandicota savilei | Yes | species | eukaryota | rodents | species | 456473 | click here |
| bettongia tropica | Yes | species | eukaryota | mammals | species | 135160 | click here |
| biomphalaria glabrata | Yes | species | eukaryota | invertebrates | species | 6526 | click here |
| bison | Yes | | | mammals | genus | 9900 | click here |
| bison bison | Yes | species | eukaryota | mammals | species | 9901 | click here |
| bison bison bison | Yes | subspecies | | | subspecies | 43346 | click here |
| bison bonasus | Yes | species | eukaryota | mammals | species | 9902 | click here |
| bison bonasus caucasicus | Yes | subspecies | | | subspecies | 1874132 | click here |
| blarina brevicauda | Yes | species | eukaryota | mammals | species | 9387 | click here |
| bos frontalis | Yes | species | eukaryota | mammals | species | 30520 | click here |
| bos grunniens | Yes | species | eukaryota | mammals | species | 30521 | click here |
| bos indicus | Yes | species | eukaryota | mammals | species | 9915 | click here |
| bos indicus gudali | Yes | subspecies | eukaryota | mammals | subspecies | 119909 | click here |
| bos primigenius | Yes | species | eukaryota | mammals | species | 9909 | click here |
| bos taurus | Yes | species | eukaryota | mammals | species | 9913 | click here |
| bovidae | Yes | | | mammals | family | 9895 | click here |
| bovinae | Yes | | | mammals | subfamily | 27592 | click here |
| branta bernicla | Yes | species | eukaryota | vertebrates | species | 184712 | click here |
| branta bernicla nigricans | Yes | subspecies | eukaryota | vertebrates | subspecies | 184714 | click here |
| bubalus bubalis | Yes | species | eukaryota | mammals | species | 89462 | click here |
| bubo bubo | Yes | species | eukaryota | vertebrates | species | 30461 | click here |
| bubo scandiacus | Yes | species | eukaryota | vertebrates | species | 371907 | click here |
| cacajao calvus | Yes | species | eukaryota | primates | species | 30596 | click here |
| cacajao calvus rubicundus | Yes | subspecies | eukaryota | primates | subspecies | 658400 | click here |
| callimico goeldii | Yes | species | eukaryota | primates | species | 9495 | click here |
| callipepla californica | Yes | species | eukaryota | vertebrates | species | 67771 | click here |
| callithrix jacchus | Yes | species | eukaryota | primates | species | 9483 | click here |
| callocephalon fimbriatum | Yes | species | | | species | 986101 | click here |
| callorhinus ursinus | Yes | species | eukaryota | mammals | species | 34884 | click here |
| callosciurus notatus | Yes | species | eukaryota | rodents | species | 64678 | click here |
| calomys sp. | Yes | no rank | eukaryota | rodents | species | 160457 | click here |
| caloperdix oculeus | Yes | species | eukaryota | vertebrates | species | 466541 | click here |
| camelus | Yes | | | mammals | genus | 9836 | click here |
| camelus bactrianus | Yes | species | eukaryota | mammals | species | 9837 | click here |