| bovidae | Yes | | | mammals | family | 9895 | click here |
| bovinae | Yes | | | mammals | subfamily | 27592 | click here |
| bubalus bubalis | Yes | species | eukaryota | mammals | species | 89462 | click here |
| bubalus sp. | Yes | no rank | eukaryota | mammals | species | 85875 | click here |
| bubo bubo | Yes | species | eukaryota | vertebrates | species | 30461 | click here |
| buteo buteo | Yes | species | eukaryota | vertebrates | species | 30397 | click here |
| byrsotria fumigata | Yes | species | eukaryota | invertebrates | species | 36947 | click here |
| caiman latirostris | Yes | species | eukaryota | vertebrates | species | 190476 | click here |
| calidris minuta | Yes | species | eukaryota | vertebrates | species | 670340 | click here |
| callinectes sapidus | Yes | species | eukaryota | invertebrates | species | 6763 | click here |
| callithrix jacchus | Yes | species | eukaryota | primates | species | 9483 | click here |
| callorhinus ursinus | Yes | species | eukaryota | mammals | species | 34884 | click here |
| camelus | Yes | | | mammals | genus | 9836 | click here |
| camelus bactrianus | Yes | species | eukaryota | mammals | species | 9837 | click here |
| camelus dromedarius | Yes | species | eukaryota | mammals | species | 9838 | click here |
| canidae | Yes | | | mammals | family | 9608 | click here |
| canis latrans | Yes | species | eukaryota | mammals | species | 9614 | click here |
| canis lupus | Yes | species | eukaryota | mammals | species | 9612 | click here |
| canis lupus familiaris | Yes | subspecies | eukaryota | mammals | subspecies | 9615 | click here |
| canis lupus signatus | Yes | subspecies | eukaryota | mammals | subspecies | 425934 | click here |
| capra falconeri | Yes | species | eukaryota | mammals | species | 48167 | click here |
| capra hircus | Yes | species | eukaryota | mammals | species | 9925 | click here |
| capra ibex | Yes | species | eukaryota | mammals | species | 72542 | click here |
| capreolus capreolus | Yes | species | eukaryota | mammals | species | 9858 | click here |
| caprinae | Yes | | | mammals | subfamily | 9963 | click here |
| cardinalis cardinalis | Yes | species | eukaryota | vertebrates | species | 98964 | click here |
| carios capensis | Yes | species | eukaryota | invertebrates | species | 176285 | click here |
| carios mimon | Yes | species | eukaryota | invertebrates | species | 360319 | click here |
| carios sawaii | Yes | species | eukaryota | invertebrates | species | 357973 | click here |
| carios vespertilionis | Yes | species | eukaryota | invertebrates | species | 870211 | click here |
| carollia | Yes | | | mammals | genus | 40232 | click here |
| carollia perspicillata | Yes | species | eukaryota | mammals | species | 40233 | click here |
| castor fiber | Yes | species | eukaryota | rodents | species | 10185 | click here |
| catharus fuscescens | Yes | species | eukaryota | vertebrates | species | 159581 | click here |
| cavia aperea | Yes | species | eukaryota | rodents | species | 37548 | click here |
| cavia porcellus | Yes | species | eukaryota | rodents | species | 10141 | click here |
| cebidae | Yes | | | primates | family | 9498 | click here |
| cebus albifrons | Yes | species | eukaryota | primates | species | 9514 | click here |
| cebus capucinus | Yes | species | eukaryota | primates | species | 9516 | click here |
| cerastoderma edule | Yes | species | eukaryota | invertebrates | species | 55710 | click here |
| ceratotherium simum | Yes | species | eukaryota | mammals | species | 9807 | click here |
| cercocebus atys | Yes | species | eukaryota | primates | species | 9531 | click here |
| cerdocyon thous | Yes | species | eukaryota | mammals | species | 9620 | click here |
| cervidae | Yes | | | mammals | family | 9850 | click here |
| cervus canadensis nelsoni | Yes | subspecies | eukaryota | mammals | subspecies | 9864 | click here |
| cervus canadensis roosevelti | Yes | subspecies | eukaryota | mammals | subspecies | 65383 | click here |
| cervus elaphus | Yes | species | eukaryota | mammals | species | 9860 | click here |
| cervus nippon | Yes | species | eukaryota | mammals | species | 9863 | click here |
| cervus nippon yesoensis | Yes | subspecies | eukaryota | mammals | subspecies | 223998 | click here |
| chaerephon | Yes | | | mammals | genus | 242383 | click here |
| chaetophractus villosus | Yes | species | eukaryota | mammals | species | 29080 | click here |
| chelydra serpentina | Yes | species | eukaryota | vertebrates | species | 8475 | click here |
| chionis alba | Yes | species | eukaryota | vertebrates | species | 240203 | click here |
| chiroptera | Yes | | | mammals | order | 9397 | click here |
| chlorocebus aethiops | Yes | species | eukaryota | primates | species | 9534 | click here |
| chlorocebus pygerythrus | Yes | species | eukaryota | primates | species | 60710 | click here |
| chlorocebus sabaeus | Yes | species | eukaryota | primates | species | 60711 | click here |
| choeroniscus godmani | Yes | species | eukaryota | mammals | species | 148049 | click here |
| chrysocyon brachyurus | Yes | species | eukaryota | mammals | species | 68728 | click here |
| cimex lectularius | Yes | species | eukaryota | invertebrates | species | 79782 | click here |
| coccothraustes coccothraustes | Yes | species | eukaryota | vertebrates | species | 37609 | click here |
| colinus virginianus | Yes | species | eukaryota | vertebrates | species | 9014 | click here |
| columba livia | Yes | species | eukaryota | vertebrates | species | 8932 | click here |
| conepatus chinga | Yes | species | eukaryota | mammals | species | 30542 | click here |
| coptotermes formosanus | Yes | species | eukaryota | invertebrates | species | 36987 | click here |
| corallium rubrum | Yes | species | eukaryota | invertebrates | species | 142104 | click here |
| cornitermes | Yes | | | invertebrates | genus | 62946 | click here |
| corvus monedula | Yes | species | eukaryota | vertebrates | species | 30423 | click here |
| crassostrea corteziensis | Yes | species | eukaryota | invertebrates | species | 396373 | click here |
| crassostrea gigas | Yes | species | eukaryota | invertebrates | species | 29159 | click here |
| cricetomys gambianus | Yes | species | eukaryota | rodents | species | 10085 | click here |
| cricetulus griseus | Yes | species | eukaryota | rodents | species | 10029 | click here |
| cricetulus longicaudatus | Yes | species | eukaryota | rodents | species | 10030 | click here |
| crocidura | Yes | | | mammals | genus | 36801 | click here |
| crocidura attenuata | Yes | species | eukaryota | mammals | species | 167044 | click here |
| crocidura dsinezumi | Yes | species | eukaryota | mammals | species | 62277 | click here |
| crocidura goliath | Yes | species | eukaryota | mammals | species | 148970 | click here |
| crocidura leucodon | Yes | species | eukaryota | mammals | species | 109474 | click here |
| crocidura russula | Yes | species | eukaryota | mammals | species | 36802 | click here |
| crocidura suaveolens | Yes | species | eukaryota | mammals | species | 52631 | click here |
| crocidura watasei | Yes | species | eukaryota | mammals | species | 167045 | click here |
| cryptocercus punctulatus | Yes | species | eukaryota | invertebrates | species | 36984 | click here |
| cryptotermes cavifrons | Yes | species | eukaryota | invertebrates | species | 641613 | click here |
| cryptotermes domesticus | Yes | species | eukaryota | invertebrates | species | 60569 | click here |
| ctenocephalides felis | Yes | species | eukaryota | invertebrates | species | 7515 | click here |
| cubitermes fungifaber | Yes | species | eukaryota | invertebrates | species | 377897 | click here |
| cubitermes ugandensis | Yes | species | | | species | 1236676 | click here |
| culex pipiens | Yes | species | eukaryota | invertebrates | species | 7175 | click here |
| culicidae | Yes | | | invertebrates | family | 7157 | click here |
| culiseta subochrea | Yes | species | | | species | 1788510 | click here |
| cynomys ludovicianus | Yes | species | eukaryota | rodents | species | 45480 | click here |
| dama dama | Yes | species | eukaryota | mammals | species | 30532 | click here |
| dasypodidae | Yes | | | mammals | family | 9359 | click here |
| dermacentor | Yes | | | invertebrates | genus | 34619 | click here |
| dermacentor andersoni | Yes | species | eukaryota | invertebrates | species | 34620 | click here |
| dermacentor everestianus | Yes | species | | | species | 1167514 | click here |
| dermacentor marginatus | Yes | species | eukaryota | invertebrates | species | 49202 | click here |
| dermacentor nuttalli | Yes | species | | | species | 1046038 | click here |
| dermacentor occidentalis | Yes | species | eukaryota | invertebrates | species | 60254 | click here |
| dermacentor reticulatus | Yes | species | eukaryota | invertebrates | species | 57047 | click here |