| babesia caballi | No | species | eukaryota | invertebrates | species | 5871 | click here |
| babesia canis | No | species | eukaryota | invertebrates | species | 5867 | click here |
| babesia canis canis | No | subspecies | eukaryota | invertebrates | subspecies | 167443 | click here |
| babesia canis vogeli | No | subspecies | eukaryota | invertebrates | subspecies | 167445 | click here |
| babesia felis | No | species | eukaryota | invertebrates | species | 124135 | click here |
| babesia gibsoni | No | species | eukaryota | invertebrates | species | 33632 | click here |
| babesia hongkongensis | No | species | | | species | 1196326 | click here |
| babesia lengau | No | species | eukaryota | invertebrates | species | 796395 | click here |
| babesia leo | No | species | eukaryota | invertebrates | species | 124136 | click here |
| babesia microti | No | species | eukaryota | invertebrates | species | 5868 | click here |
| babesia odocoilei | No | species | eukaryota | invertebrates | species | 36766 | click here |
| babesia sp. | No | species | eukaryota | invertebrates | species | 35084 | click here |
| babesia sp. k68 | No | no rank | eukaryota | invertebrates | species | 263006 | click here |
| bacillus anthracis | No | species | bacteria | bacteria | species | 1392 | click here |
| bacteroides fragilis | No | species | bacteria | bacteria | species | 817 | click here |
| bacteroides pyogenes | No | species | bacteria | bacteria | species | 310300 | click here |
| bacteroides sp. | No | no rank | bacteria | bacteria | species | 29523 | click here |
| bacteroides sp. feline oral taxon 113 | No | no rank | | | species | 1577239 | click here |
| bacteroides sp. feline oral taxon 308 | No | no rank | | | species | 1577240 | click here |
| bacteroides sp. feline oral taxon 337 | No | no rank | | | species | 1577238 | click here |
| bacteroidia bacterium feline oral taxon 115 | No | no rank | | | species | 1577241 | click here |
| bacteroidia bacterium feline oral taxon 141 | No | no rank | | | species | 1577242 | click here |
| bacteroidia bacterium feline oral taxon 310 | No | no rank | | | species | 1577243 | click here |
| bacteroidia bacterium feline oral taxon 312 | No | no rank | | | species | 1577244 | click here |
| barmah forest virus | No | species | viruses and viroids | viruses | species | 11020 | click here |
| bartonella clarridgeiae | No | species | bacteria | bacteria | species | 56426 | click here |
| bartonella henselae | No | species | bacteria | bacteria | species | 38323 | click here |
| bartonella henselae jk 42 | No | no rank | | | no rank | 1402980 | click here |
| bartonella henselae jk 51 | No | no rank | | | no rank | 1402982 | click here |
| bartonella henselae str. zeus | No | no rank | | | no rank | 1134509 | click here |
| bartonella koehlerae | No | species | bacteria | bacteria | species | 92181 | click here |
| bartonella koehlerae c-29 | No | no rank | | | no rank | 1134510 | click here |
| bartonella sp. | No | species | bacteria | bacteria | species | 46358 | click here |
| bartonella weissi | No | species | bacteria | bacteria | species | 77984 | click here |
| bat coronavirus | No | species | | | species | 1508220 | click here |
| baylisascaris procyonis | No | species | eukaryota | invertebrates | species | 6259 | click here |
| baylisascaris transfuga | No | species | eukaryota | invertebrates | species | 6260 | click here |
| bergeyella zoohelcum | No | species | bacteria | bacteria | species | 1015 | click here |
| besnoitia besnoiti | No | species | eukaryota | invertebrates | species | 94643 | click here |
| besnoitia wallacei | No | species | | | species | | click here |
| bifidobacterium longum | No | species | bacteria | bacteria | species | 216816 | click here |
| bifidobacterium pseudocatenulatum | No | species | bacteria | bacteria | species | 28026 | click here |
| blastocystis sp. | No | species | eukaryota | plants | species | 46767 | click here |
| blastocystis sp. subtype 1 | No | no rank | eukaryota | plants | species | 944036 | click here |
| blastocystis sp. subtype 4 | No | no rank | eukaryota | plants | species | 944170 | click here |
| blastomyces dermatitidis | No | species | eukaryota | plants | species | 5039 | click here |
| bordetella bronchiseptica | No | species | bacteria | bacteria | species | 518 | click here |
| bordetella bronchiseptica mbord635 | No | no rank | | | no rank | 1331223 | click here |
| bordetella bronchiseptica mbord782 | No | no rank | | | no rank | 1331234 | click here |
| borna disease virus | No | species | viruses and viroids | viruses | species | 12455 | click here |
| borrelia hispanica | No | species | bacteria | bacteria | species | 40835 | click here |
| borrelia persica | No | species | bacteria | bacteria | species | 44448 | click here |
| borreliella burgdorferi | No | species | bacteria | bacteria | species | 139 | click here |
| bovine coronavirus | No | no rank | viruses and viroids | viruses | no rank | 11128 | click here |
| bovine herpesvirus 4 | No | species | viruses and viroids | viruses | species | 10385 | click here |
| bovine papillomavirus type 14 | No | no rank | | | no rank | 1639825 | click here |
| bovine spongiform encephalopathy agent | No | species | | | species | | click here |
| bovine viral diarrhea virus 1 | No | species | viruses and viroids | viruses | species | 11099 | click here |
| brachymonas sp. feline oral taxon 073 | No | no rank | | | species | 1577245 | click here |
| brachymonas sp. feline oral taxon 160 | No | no rank | | | species | 1577248 | click here |
| brucella canis | No | species | bacteria | bacteria | species | 36855 | click here |
| brugia malayi | No | species | eukaryota | invertebrates | species | 6279 | click here |
| brugia pahangi | No | species | eukaryota | invertebrates | species | 6280 | click here |
| brugia patei | No | species | eukaryota | invertebrates | species | 42154 | click here |
| caenorhabditis elegans | No | species | eukaryota | invertebrates | species | 6239 | click here |
| campylobacter helveticus | No | species | bacteria | bacteria | species | 28898 | click here |
| campylobacter jejuni | No | species | bacteria | bacteria | species | 197 | click here |
| campylobacter sp. | No | no rank | bacteria | bacteria | species | 205 | click here |
| campylobacter sp. feline oral taxon 100 | No | no rank | | | species | 1577249 | click here |
| campylobacter upsaliensis | No | species | bacteria | bacteria | species | 28080 | click here |
| candida albicans | No | species | eukaryota | plants | species | 5476 | click here |
| candida parapsilosis | No | species | eukaryota | plants | species | 5480 | click here |
| candida tropicalis | No | species | eukaryota | plants | species | 5482 | click here |
| candidate division sr1 bacterium feline oral taxon 313 | No | no rank | | | species | 1577729 | click here |
| candidatus mycoplasma haemobos | No | species | bacteria | bacteria | species | 432608 | click here |
| candidatus mycoplasma haemominutum | No | species | bacteria | bacteria | species | 209446 | click here |
| candidatus mycoplasma haemominutum 'birmingham 1' | No | no rank | | | no rank | 1116213 | click here |
| candidatus mycoplasma turicensis | No | species | bacteria | bacteria | species | 346879 | click here |
| candidatus saccharibacteria bacterium feline oral taxon 314 | No | no rank | | | species | 1577728 | click here |
| canine bocavirus | No | species | | | species | 1108949 | click here |
| canine bocavirus 1 | No | no rank | | | no rank | 1511885 | click here |
| canine coronavirus | No | no rank | viruses and viroids | viruses | no rank | 11153 | click here |
| canine distemper virus | No | species | viruses and viroids | viruses | species | 11232 | click here |
| canine parvovirus | No | no rank | viruses and viroids | viruses | no rank | 10788 | click here |
| canine parvovirus 2a | No | no rank | viruses and viroids | viruses | no rank | 497961 | click here |
| canine parvovirus 2b | No | no rank | viruses and viroids | viruses | no rank | 568986 | click here |
| canine parvovirus 2c | No | no rank | viruses and viroids | viruses | no rank | 544789 | click here |
| capillaria aerophila | No | species | | | species | 1172388 | click here |
| capillaria erinacea | No | species | | | species | | click here |
| capillaria felis cati | No | | | | subspecies | | click here |
| capillaria hepatica | No | species | | | species | 1239592 | click here |
| capillaria plica | No | species | | | species | 1239593 | click here |
| capillaria putorii | No | species | | | species | 1239594 | click here |
| capnocytophaga canimorsus | No | species | bacteria | bacteria | species | 28188 | click here |
| capnocytophaga canis | No | species | | | species | 1848903 | click here |
| capnocytophaga sp. | No | no rank | bacteria | bacteria | species | 44737 | click here |
| capnocytophaga sp. feline oral taxon 116 | No | no rank | | | species | 1577252 | click here |
| capnocytophaga sp. feline oral taxon 168 | No | no rank | | | species | 1577253 | click here |
| capnocytophaga sp. feline oral taxon 311 | No | no rank | | | species | 1577254 | click here |
| capnocytophaga sp. feline oral taxon 330 | No | no rank | | | species | 1577251 | click here |