Bab
Babyrousa Perry, 1811
- Babyrousa babyrussa (Linnaeus, 1758)
- Babyrousa bolabatuensis Hoojer, 1950
- Babyrousa celebensis (Deninger, 1909)
- Babyrousa togeanensis (Sody, 1949)
Mammalia → Artiodactyla → Suidae → Suinae → Babyrousini
Tribus Babyrousini Thenius, 1970
- Rod Babyrousa Perry, 1811
Mammalia → Artiodactyla → Suidae → Suinae
Bai
Baiomys True, 1893
- Baiomys musculus (Merriam, 1892)
- Baiomys taylori (Thomas, 1887)
Mammalia → Rodentia → Muridae → Sigmodontinae
Bal
Balaena Linnaeus, 1758
- Balaena mysticetus Linnaeus, 1758
Mammalia → Cetacea → Mysticeti → Balaenidae
Porodica Balaenidae Gray, 1821
- Rodovi: Balaena, Balaenula †, Eubalaena, Mesoteras †, Morenocetus †
Mammalia → Cetacea → Mysticeti
Balaenoptera Lacépède, 1804
- Balaenoptera acutorostrata Lacépède, 1804
- Balaenoptera acutorostrata acutorostrata Lacépède, 1804
- Balaenoptera acutorostrata scammoni Deméré, 1986
- Balaenoptera bonaerensis Burmeister, 1867
- Balaenoptera borealis Lesson, 1828
- Balaenoptera borealis borealis Lesson, 1828
- Balaenoptera borealis schlegelii (Flower, 1865)
- Balaenoptera brydei Olsen, 1913
- Balaenoptera edeni Anderson, 1879
- Balaenoptera musculus (Linnaeus, 1758)
- Balaenoptera musculus brevicauda Ichihara, 1966
- Balaenoptera musculus indica Blyth, 1859
- Balaenoptera musculus intermedia Burmeister, 1871
- Balaenoptera musculus musculus (Linnaeus, 1758)
- Balaenoptera omurai Wada, Oishi, and Yamada, 2003
- Balaenoptera physalus (Linnaeus, 1758)
- Balaenoptera physalus physalus (Linnaeus, 1758)
- Balaenoptera physalus quoyi (Fischer, 1829)
Mammalia → Cetacea → Mysticeti → Balaenopteridae
Porodica Balaenopteridae Gray, 1864
- Rodovi: Balaenoptera, Megaptera
Mammalia → Cetacea → Mysticeti
Balantiopteryx Peters, 1867
- Balantiopteryx infusca (Thomas, 1897)
- Balantiopteryx io Thomas, 1904
- Balantiopteryx plicata Peters, 1867
- Balantiopteryx plicata pallida Burt, 1948
- Balantiopteryx plicata plicata Peters, 1867
Mammalia → Chiroptera → Microchiroptera → Emballonuridae → Emballonurinae , Balionycteris
Ban
, Bandicota
Bar
, Barbastella
Bas
†Basilosaurus Harlan 1834
- †Basilosaurus cetoides Owen 1839
- †Basilosaurus drazindai Gingerich et al. 1997
- †Basilosaurus isis Andrews 1904
Animalia → Chordata → Mammalia → Artiodactyla → Basilosauridae , Bassaricyon , Bassariscus
Bat
, Bathyergidae , Bathyergus , Batomys