| carcharhinus limbatus | Yes | species | eukaryota | vertebrates | species | 61865 | click here |
| carcharhinus melanopterus | Yes | species | eukaryota | vertebrates | species | 263686 | click here |
| carcharhinus obscurus | Yes | species | eukaryota | vertebrates | species | 7807 | click here |
| carcharhinus sorrah | Yes | species | eukaryota | vertebrates | species | 280671 | click here |
| carcharhinus tilstoni | Yes | species | eukaryota | vertebrates | species | 280670 | click here |
| carcharias taurus | Yes | species | eukaryota | vertebrates | species | 30501 | click here |
| carcharodon carcharias | Yes | species | eukaryota | vertebrates | species | 13397 | click here |
| carpiodes cyprinus | Yes | species | eukaryota | vertebrates | species | 244777 | click here |
| carpiodes velifer | Yes | species | eukaryota | vertebrates | species | 425486 | click here |
| castor fiber | Yes | species | eukaryota | rodents | species | 10185 | click here |
| cataetyx laticeps | Yes | species | eukaryota | vertebrates | species | 546511 | click here |
| catostomus commersonii | Yes | species | eukaryota | vertebrates | species | 7971 | click here |
| causus maculatus | Yes | species | | | species | 292842 | click here |
| cavia porcellus | Yes | species | eukaryota | rodents | species | 10141 | click here |
| centrolophus niger | Yes | species | eukaryota | vertebrates | species | 316130 | click here |
| centrophorus | Yes | | | vertebrates | genus | 212736 | click here |
| cercocebus torquatus | Yes | species | eukaryota | primates | species | 9530 | click here |
| cercopithecidae | Yes | | | primates | family | 9527 | click here |
| cercopithecus ascanius | Yes | species | eukaryota | primates | species | 36223 | click here |
| cercopithecus diana | Yes | species | eukaryota | primates | species | 36224 | click here |
| cercopithecus mona | Yes | species | eukaryota | primates | species | 36226 | click here |
| cercopithecus mona mona | Yes | subspecies | eukaryota | primates | subspecies | 100489 | click here |
| cerdocyon thous | Yes | species | eukaryota | mammals | species | 9620 | click here |
| cervus canadensis | Yes | species | | | species | 1574408 | click here |
| cervus canadensis nelsoni | Yes | subspecies | eukaryota | mammals | subspecies | 9864 | click here |
| cervus elaphus | Yes | species | eukaryota | mammals | species | 9860 | click here |
| cervus hanglu | Yes | species | | | species | 2100816 | click here |
| cervus nippon | Yes | species | eukaryota | mammals | species | 9863 | click here |
| cetorhinus maximus | Yes | species | eukaryota | vertebrates | species | 57982 | click here |
| chaetodon lunula | Yes | species | eukaryota | vertebrates | species | 109694 | click here |
| channa micropeltes | Yes | species | eukaryota | vertebrates | species | 64149 | click here |
| channa punctata | Yes | species | eukaryota | vertebrates | species | 304456 | click here |
| channa sp. | Yes | no rank | eukaryota | vertebrates | species | 94222 | click here |
| chanodichthys dabryi | Yes | species | eukaryota | vertebrates | species | 194365 | click here |
| chanodichthys erythropterus | Yes | species | eukaryota | vertebrates | species | 933992 | click here |
| characodon audax | Yes | species | eukaryota | vertebrates | species | 208330 | click here |
| characodon lateralis | Yes | species | eukaryota | vertebrates | species | 208331 | click here |
| chelidonichthys lucernus | Yes | species | eukaryota | vertebrates | species | 206130 | click here |
| chiloscyllium hasseltii | Yes | species | eukaryota | vertebrates | species | 443760 | click here |
| chiloscyllium punctatum | Yes | species | eukaryota | vertebrates | species | 137246 | click here |
| chinchilla chinchilla | Yes | species | eukaryota | rodents | species | 10152 | click here |
| chinchilla lanigera | Yes | species | eukaryota | rodents | species | 34839 | click here |
| chionobathyscus dewitti | Yes | species | eukaryota | vertebrates | species | 70442 | click here |
| chionomys nivalis | Yes | species | eukaryota | rodents | species | 269649 | click here |
| chloephaga picta | Yes | species | eukaryota | vertebrates | species | 8861 | click here |
| chlorocebus aethiops | Yes | species | eukaryota | primates | species | 9534 | click here |
| chlorocebus pygerythrus | Yes | species | eukaryota | primates | species | 60710 | click here |
| choerodon venustus | Yes | species | eukaryota | vertebrates | species | 443689 | click here |
| chondrichthyes | Yes | | | vertebrates | class | 7777 | click here |
| chondrostoma nasus | Yes | species | eukaryota | vertebrates | species | 52619 | click here |
| chroicocephalus ridibundus | Yes | species | | | species | 1192867 | click here |
| chrysocyon brachyurus | Yes | species | eukaryota | mammals | species | 68728 | click here |
| cichla monoculus | Yes | species | eukaryota | vertebrates | species | 81334 | click here |
| cichla piquiti | Yes | species | eukaryota | vertebrates | species | 516076 | click here |
| ciconia ciconia | Yes | species | eukaryota | vertebrates | species | 8928 | click here |
| cinnyris minullus | Yes | species | | | species | 1208738 | click here |
| clarias | Yes | | | vertebrates | genus | 13012 | click here |
| clarias anguillaris | Yes | species | eukaryota | vertebrates | species | 103204 | click here |
| clarias batrachus | Yes | species | eukaryota | vertebrates | species | 59899 | click here |
| clarias gariepinus | Yes | species | eukaryota | vertebrates | species | 13013 | click here |
| clarias liocephalus | Yes | species | eukaryota | vertebrates | species | 391045 | click here |
| clarias werneri | Yes | species | eukaryota | vertebrates | species | 391044 | click here |
| clarotes laticeps | Yes | species | eukaryota | vertebrates | species | 103208 | click here |
| clupisoma garua | Yes | species | eukaryota | vertebrates | species | 555719 | click here |
| cobitis bilseli | Yes | species | eukaryota | vertebrates | species | 352908 | click here |
| cobitis lutheri | Yes | species | eukaryota | vertebrates | species | 264551 | click here |
| codoma ornata | Yes | species | eukaryota | vertebrates | species | 232984 | click here |
| coelacanthimorpha | Yes | | | vertebrates | subclass | 118072 | click here |
| colinus virginianus | Yes | species | eukaryota | vertebrates | species | 9014 | click here |
| columba livia | Yes | species | eukaryota | vertebrates | species | 8932 | click here |
| compsophis | Yes | | | vertebrates | genus | 224541 | click here |
| connochaetes gnou | Yes | species | eukaryota | mammals | species | 59528 | click here |
| connochaetes taurinus | Yes | species | eukaryota | mammals | species | 9927 | click here |
| coregonus | Yes | | | vertebrates | genus | 27772 | click here |
| coregonus autumnalis | Yes | species | eukaryota | vertebrates | species | 27773 | click here |
| coregonus clupeaformis | Yes | species | eukaryota | vertebrates | species | 59861 | click here |
| coregonus lavaretus | Yes | species | eukaryota | vertebrates | species | 59291 | click here |
| coregonus pollan | Yes | species | eukaryota | vertebrates | species | 108096 | click here |
| coregonus sardinella | Yes | species | eukaryota | vertebrates | species | 241494 | click here |
| coregonus widegreni | Yes | species | eukaryota | vertebrates | species | 861790 | click here |
| coreius guichenoti | Yes | species | eukaryota | vertebrates | species | 328532 | click here |
| corvus splendens | Yes | species | eukaryota | vertebrates | species | 701737 | click here |
| coryphaena hippurus | Yes | species | eukaryota | vertebrates | species | 34814 | click here |
| coryphaenoides armatus | Yes | species | eukaryota | vertebrates | species | 76798 | click here |
| cottoperca gobio | Yes | species | eukaryota | vertebrates | species | 56716 | click here |
| cottus gobio | Yes | species | eukaryota | vertebrates | species | 100952 | click here |
| cottus sibiricus | Yes | species | eukaryota | vertebrates | species | 200678 | click here |
| coturnix coturnix | Yes | species | eukaryota | vertebrates | species | 9091 | click here |
| couesius plumbeus | Yes | species | eukaryota | vertebrates | species | 67539 | click here |
| cratacanthus | Yes | | | | genus | 1206024 | click here |
| crax rubra | Yes | species | eukaryota | vertebrates | species | 84990 | click here |
| cricetidae | Yes | | | rodents | family | 337677 | click here |
| cricetomys gambianus | Yes | species | eukaryota | rodents | species | 10085 | click here |
| cricetulus barabensis | Yes | species | eukaryota | rodents | species | 329629 | click here |
| cricetulus griseus | Yes | species | eukaryota | rodents | species | 10029 | click here |
| cricetulus kamensis | Yes | species | | | species | 1515608 | click here |
| cricetulus migratorius | Yes | species | eukaryota | rodents | species | 10032 | click here |
| cricetus cricetus | Yes | species | eukaryota | rodents | species | 10034 | click here |
| crocuta crocuta | Yes | species | eukaryota | mammals | species | 9678 | click here |
| crotalus | Yes | | | vertebrates | genus | 8728 | click here |