| citrus x paradisi | Yes | subspecies | eukaryota | plants | species | 37656 | click here |
| cladonia gracilis | Yes | species | eukaryota | plants | species | 111668 | click here |
| clathria reinwardti | Yes | species | eukaryota | invertebrates | species | 81540 | click here |
| cleome gynandra | Yes | species | eukaryota | plants | species | 190802 | click here |
| cliona californiana | Yes | species | eukaryota | invertebrates | species | 880268 | click here |
| cnaphalocrocis medinalis | Yes | species | eukaryota | invertebrates | species | 437488 | click here |
| cocos nucifera | Yes | species | eukaryota | plants | species | 13894 | click here |
| codium | Yes | | | plants | genus | 3132 | click here |
| codium duthieae | Yes | species | eukaryota | plants | species | 414127 | click here |
| coffea arabica | Yes | species | eukaryota | plants | species | 13443 | click here |
| coffea canephora | Yes | species | eukaryota | plants | species | 49390 | click here |
| collema auriforme | Yes | species | eukaryota | plants | species | 586059 | click here |
| colostethus panamansis | Yes | species | eukaryota | vertebrates | species | 384868 | click here |
| colutea arborescens | Yes | species | eukaryota | plants | species | 47649 | click here |
| conus coronatus | Yes | species | eukaryota | invertebrates | species | 89441 | click here |
| conus ebraeus | Yes | species | eukaryota | invertebrates | species | 89425 | click here |
| conus emaciatus | Yes | species | eukaryota | invertebrates | species | 89442 | click here |
| conus flavidus | Yes | species | eukaryota | invertebrates | species | 101302 | click here |
| conus miles | Yes | species | eukaryota | invertebrates | species | 69564 | click here |
| conus pulicarius | Yes | species | eukaryota | invertebrates | species | 93154 | click here |
| copris tripartitus | Yes | species | eukaryota | invertebrates | species | 438892 | click here |
| coptis chinensis | Yes | species | eukaryota | plants | species | 261450 | click here |
| coptotermes lacteus | Yes | species | eukaryota | invertebrates | species | 119669 | click here |
| coriaria myrtifolia | Yes | species | eukaryota | plants | species | 3460 | click here |
| corynorhinus townsendii | Yes | species | eukaryota | mammals | species | 124745 | click here |
| coturnix coturnix | Yes | species | eukaryota | vertebrates | species | 9091 | click here |
| crassostrea gigas | Yes | species | eukaryota | invertebrates | species | 29159 | click here |
| craugastor ranoides | Yes | species | eukaryota | vertebrates | species | 228432 | click here |
| crematogaster longispina | Yes | species | | | species | 1202025 | click here |
| crocus sativus | Yes | species | eukaryota | plants | species | 82528 | click here |
| crustacea | Yes | | | invertebrates | subphylum | 6657 | click here |
| cucumis sativus | Yes | species | eukaryota | plants | species | 3659 | click here |
| cucurbita | Yes | | | plants | genus | 3660 | click here |
| culex gelidus | Yes | species | eukaryota | invertebrates | species | 308713 | click here |
| curcuma longa | Yes | species | eukaryota | plants | species | 136217 | click here |
| cycas revoluta | Yes | species | eukaryota | plants | species | 3396 | click here |
| cyclops abyssorum | Yes | species | | | species | 595358 | click here |
| cymbastela concentrica | Yes | species | eukaryota | invertebrates | species | 484451 | click here |
| cymbidium eburneum | Yes | species | eukaryota | plants | species | 160528 | click here |
| cymbidium goeringii | Yes | species | eukaryota | plants | species | 112607 | click here |
| cynodon dactylon | Yes | species | eukaryota | plants | species | 28909 | click here |
| cyperus | Yes | | | plants | genus | 4610 | click here |
| cyperus rotundus | Yes | species | eukaryota | plants | species | 512623 | click here |
| cystoseira baccata | Yes | species | eukaryota | plants | species | 97146 | click here |
| cytisus scoparius | Yes | species | eukaryota | plants | species | 3835 | click here |
| cytisus striatus | Yes | species | eukaryota | plants | species | 176342 | click here |
| dactylis glomerata | Yes | species | eukaryota | plants | species | 4509 | click here |
| dactylospongia | Yes | | | | genus | 1162778 | click here |
| danaus plexippus | Yes | species | eukaryota | invertebrates | species | 13037 | click here |
| datura | Yes | | | plants | genus | 4074 | click here |
| daucus carota | Yes | species | eukaryota | plants | species | 4039 | click here |
| daucus carota subsp. sativus | Yes | subspecies | eukaryota | plants | subspecies | 79200 | click here |
| delonix regia | Yes | species | eukaryota | plants | species | 72433 | click here |
| dendrobium | Yes | | | plants | genus | 37818 | click here |
| dendrobium catenatum | Yes | species | eukaryota | plants | species | 142615 | click here |
| dendrobium chrysotoxum | Yes | species | eukaryota | plants | species | 161865 | click here |
| dendrobium densiflorum | Yes | species | eukaryota | plants | species | 161866 | click here |
| dendrobium fugax | Yes | species | eukaryota | plants | species | 50357 | click here |
| dendrobium huoshanense | Yes | species | eukaryota | plants | species | 154293 | click here |
| dendrobium moschatum | Yes | species | eukaryota | plants | species | 117955 | click here |
| dendrobium nobile | Yes | species | eukaryota | plants | species | 94219 | click here |
| dendrobium scabrilingue | Yes | species | eukaryota | plants | species | 38179 | click here |
| dendroctonus adjunctus | Yes | species | eukaryota | invertebrates | species | 77157 | click here |
| dendroctonus approximatus | Yes | species | eukaryota | invertebrates | species | 77158 | click here |
| dendroctonus brevicomis | Yes | species | eukaryota | invertebrates | species | 77160 | click here |
| dendroctonus frontalis | Yes | species | eukaryota | invertebrates | species | 77161 | click here |
| dendroctonus mexicanus | Yes | species | eukaryota | invertebrates | species | 77163 | click here |
| dendroctonus ponderosae | Yes | species | eukaryota | invertebrates | species | 77166 | click here |
| dendroctonus pseudotsugae | Yes | species | eukaryota | invertebrates | species | 77167 | click here |
| dendroctonus rufipennis | Yes | species | eukaryota | invertebrates | species | 77170 | click here |
| dendroctonus terebrans | Yes | species | eukaryota | invertebrates | species | 77172 | click here |
| dendroctonus valens | Yes | species | eukaryota | invertebrates | species | 77173 | click here |
| dendronephthya sinaiensis | Yes | species | eukaryota | invertebrates | species | 767269 | click here |
| dermanyssus gallinae | Yes | species | eukaryota | invertebrates | species | 34641 | click here |
| deschampsia antarctica | Yes | species | eukaryota | plants | species | 159298 | click here |
| diabrotica speciosa | Yes | species | eukaryota | invertebrates | species | 133126 | click here |
| diapus pusillimus | Yes | species | | | species | 1689874 | click here |
| dicranum scoparium | Yes | species | eukaryota | plants | species | 3222 | click here |
| dictyoptera | Yes | | | invertebrates | superorder | 6970 | click here |
| dictyota sp. | Yes | species | | | species | 1891090 | click here |
| didemnum psammatodes | Yes | species | eukaryota | invertebrates | species | 516030 | click here |
| dioscorea alata | Yes | species | eukaryota | plants | species | 55571 | click here |
| dioscorea oppositifolia | Yes | species | eukaryota | plants | species | 569628 | click here |
| diospyros lotus | Yes | species | eukaryota | plants | species | 55363 | click here |
| diptera | Yes | | | invertebrates | order | 7147 | click here |
| dirinaria aegialita | Yes | species | | | species | 1263771 | click here |
| dodonaea viscosa | Yes | species | eukaryota | plants | species | 151065 | click here |
| doriprismatica atromarginata | Yes | species | eukaryota | invertebrates | species | 154629 | click here |
| dracaena cochinchinensis | Yes | species | eukaryota | plants | species | 593754 | click here |
| durio zibethinus | Yes | species | eukaryota | plants | species | 66656 | click here |
| dyscophus antongilii | Yes | species | eukaryota | vertebrates | species | 272187 | click here |
| dysidea | Yes | | | invertebrates | genus | 190526 | click here |
| eacles imperialis | Yes | species | eukaryota | invertebrates | species | 180268 | click here |
| ecionemia robusta | Yes | species | | | species | 1006794 | click here |
| ecteinascidia turbinata | Yes | species | eukaryota | invertebrates | species | 284476 | click here |
| eichhornia crassipes | Yes | species | eukaryota | plants | species | 44947 | click here |
| eisenia fetida | Yes | species | eukaryota | invertebrates | species | 6396 | click here |
| elaeagnus | Yes | | | plants | genus | 36776 | click here |
| elephas maximus | Yes | species | eukaryota | mammals | species | 9783 | click here |
| eleusine coracana | Yes | species | eukaryota | plants | species | 4511 | click here |