A
· Adelophryne maranguapensis
· Adelopoma stolli
· Adelphicos daryi
· Adenomus dasi
· Adenomus kelaartii
· Adetomyrma venatrix
· Adrianichthys kruyti — Duck-billed Buntingi
· Advena charon
· Aegotheles savesi — New Caledonian Owlet-nightjar
· Aethopyga duyvenbodei — Elegant Sunbird
· Aetobatus flagellum — Longheaded eagle ray
· Aetomylaeus maculatus — Mottled eagle ray
· Aetomylaeus vespertilio — Ornate eagle ray, Reticulate eagle ray
· Afrana inyangae — Inyangani River Frog
· Afrana johnstoni — Johnston's River Frog
· Africallagma cuneistigma
· Afrithelphusa afzelii
· Afrithelphusa gerhildae
· Afrithelphusa leonensis
· Afrithelphusa monodosus
· Afrixalus knysnae — Knysna Banana Frog
· Afrixalus lacteus
· Afrixalus sylvaticus
· Afrogyrus rodriguezensis
· Afrogyrus starmuehlneri
· Agabus clypealis
· Agabus discicollis
· Agabus hozgargantae
· Agalychnis annae — Blue-sided Treefrog
· Agalychnis moreletii — Morelet's Treefrog
· Agelaius tricolor — Tricoloured Blackbird
· Agelaius xanthomus — Yellow-shouldered Blackbird
· Aglaeactis aliciae — Purple-backed Sunbeam
· Aglaothorax longipennis — Santa Monica Shieldback Katydid
· Aglyptodactylus laticeps
· Agriades zullichi
· Ailuropoda melanoleuca — Giant Panda, Panda Géant, Panda, Panda Gigante
· Ailurus fulgens — Lesser Panda, Red Cat-bear, Red Panda
· Alasmidonta arcula — Altamaha arcmussel
· Alasmidonta atropurpurea — Cumberland Elktoe
· Alasmidonta heterodon — Dwarf wedge mussel
· Alasmidonta raveneliana — Appalachian elktoe
· Alauda razae — Raso Lark
· Albericus siegfriedi
· Alburnus orontis
· Alcolapia alcalicus
· Alethe choloensis — Thyolo Alethe
· Alexteroon jynx
· Algyroides marchi — Spanish Algyroides
· Allactaga firouzi — Iranian Jerboa
· Alligator sinensis — China Alligator, Chinese Alligatoropus arsyecue]]
· Atelopus arthuri
· Atelopus balios
· Atelopus bomolochos
· Atelopus boulengeri
· Atelopus carauta — Rio Carauta Stubfoot Toad
· Atelopus carbonerensis — Venezuelan Yellow Frog
· Atelopus carrikeri
· Atelopus certus
· Atelopus chiriquiensis
· Atelopus chocoensis
· Atelopus chrysocorallus
· Atelopus coynei
· Atelopus cruciger — Rancho Grande Harlequin Frog
· Atelopus dimorphus
· Atelopus ebenoides
· Atelopus elegans
· Atelopus erythropus
· Atelopus eusebianus
· Atelopus exiguus
· Atelopus famelicus
· Atelopus farci
· Atelopus galactogaster
· Atelopus glyphus
· Atelopus guanujo
· Atelopus guitarraensis
· Atelopus halihelos
· Atelopus laetissimus
· Atelopus limosus
· Atelopuia boucardi — Mangrove Hummingbird
· Amazilia castaneiventris — Chestnut-bellied Hummingbird
· Amazilia luciae — Honduran Emerald
· Amazona imperialis — Imperial Parrot
· Amazona oratrix — Yellow-headed Parrot
· Amazona rhodocorytha — Red-browed Amazon
· Amazona viridigenalis — Red-crowned Parrot
· Amazona vittata — Puerto Rican Parrot
· Amblema neislerii — Fat threeridge
· Amblysomus marleyi — Marley's Golden Mole
· Ambystoma altamirani
· Ambystoma amblycephalum
· Ambystoma andersoni
· Ambystoma bombypellum
· Ambystoma dumerilii
· Ambystoma granulosum — Granular Salamander
· Ambystoma leorae — Leora's Stream Salamander
· Ambystoma lermaense — Lake Lerma Salamander
· Ambystoma mexicanum — Axolotl
· Ambystoma ordinarium — Michoacan Stream Salamander
· Ambystoma taylori — Taylor's Salamander
· Ameiva polops — Saint Croix Ground Lizard, St. Croix Ground Lizard
· Ammospermophilus nelsoni — Nelson's Antelope Squirrel, San Joaquin Antelope Ground Squirrel, San Joaquin Antelope Squirrel
· Amnirana asperrima
· Amnirana occidentalis
· Amolops hainanensis
· Ampelita fulgurata
· Ampelita julii
· Amplirhagada astuta
· Amplirhagada questroana
· Anabarilius polylepis
· Anaecypris hispanica
· Anairetes alpinus — Ash-breasted Tit-tyrant
· Anas bernieri — Madagascar Teal
· Anas chlorotis — Brown Teal
· Anas laysanensis — Laysan Duck
· Anas melleri — Meller's Duck
· Anas nesiotis — Campbell Island Teal
· Anas wyvilliana — Hawaiian Duck
· Anceya terebriformis
· Ancylastrum cumingianus — Australian freshwater limpet, Tasmanian freshwater 'limpet'
· Ancylus ashangiensis
· Andinophryne colomai
· Andrias davidianus — Chinese Giant Salamander
· Aneuretus simoni — Sri Lankan Relict Ant
· Angrobia grampianensis
· Anhydrophryne rattrayi — Hogsback Frog, Rattray's Frog
· Anisogomphus solitaris
· Anisotremus moricandi — Brownstriped grunt
· Anodonthyla rouxae
· Anodorhynchus glaucus — Glaucous Macaw
· Anodorhynchus hyacinthinus — Hyacinth Macaw
· Anodorhynchus leari — Lear's Macaw
· Anolis roosevelti — Culebra Island Giant Anole, Roosevelt's Giant Anole
· Anotomys leander — Aquatic Rat, Ecuador Fish-eating Rat, Fish-eating Rat
· Anoxypristis cuspidata — Knifetooth sawfish, Narrow sawfish, Pointed sawfish
· Anser cygnoides — Swan Goose
· Ansonia anotis
· Ansonia guibei
· Ansonia latidisca
· Ansonia ornata
· Ansonia platysoma
· Anthicus sacramento — Sacramento Beetle
· Anthracoceros montani — Sulu Hornbill
· Anthreptes pallidigaster — Amani Sunbird
· Anthus sokokensis — Sokoke Pipit
· Antilophia bokermanni — Araripe Manakin
· Antrisocopia prehensilis
· Antrobia culveri — Tumbling creek cavesnail
· Apalharpactes reinwardtii — Javan Trogon
· Apalis argentea — Kungwe Apalis
· Apalis flavigularis — Yellow-throated Apalis
· Apalis fuscigularis — Taita Apalis
· Apalis moreaui — Long-billed Tailorbird
· Apalone ater — Cuatro Cienegas Softshell
· Aphanius baeticus
· Aphanius burduricus
· Aphanius iberus — Spanish Toothcarp
· Aphanius richardsoni
· Aphanius sirhani
· Aphanius splendens
· Aphanius transgrediens
· Aphrastura masafuerae — Masafuera Rayadito
· Aplocheilichthys sp. nov. 'Baringo'
· Aplonis brunneicapillus — White-eyed Starling
· Aplonis pelzelni — Pohnpei Mountain Starling
· Apodemus hermonensis — Mt Hermon Field Mouse
· Aproteles bulmerae — Bulmer's Fruit Bat
· Apteryx mantelli — Brown Kiwi
· Aquadulcaris pheronyx
· Ara ambiguus — Great Green Macaw
· Ara glaucogularis — Blue-throated Macaw
· Ara rubrogenys — Red-fronted Macaw
· Aratinga brevipes — Socorro Parakeet
· Arawacus aethesa
· Arborophila davidi — Orange-necked Partridge
· Arborophila rufipectus — Sichuan Partridge
· Archboldomys luzonensis — Mt Isarog Shrew-mouse
· Ardea humbloti — Madagascar Heron
· Ardea insignis — White-bellied Heron
· Ardeola idae — Madagascar Pond-heron
· Ardeotis nigriceps — Great Indian Bustard
· Arinia biplicata
· Arinia boreoborneensis
· Arinia dentifera
· Arinia oviformis
· Arinia simplex
· Arinia streptaxiformis
· Arius bonillai — New Grenada sea catfish
· Arius festinus
· Arius uncinatus
· Arkansia wheeleri — Ouachita Rock Pocketbook, Wheeler's Pearly Mussel
· Arlequinus krebsi
· Armsia petasus
· Aromobates nocturnus — Skunk Frog
· Arthroleptella ngongoniensis — Ngoni Moss Frog
· Arthroleptides dutoiti — Du Toit's Torrent Frog
· Arthroleptides martiensseni — Usambara Torrent Frog
· Arthroleptides yakusini
· Arthroleptis crusculum
· Arthroleptis francei
· Arthroleptis nikeae
· Arthroleptis troglodytes — Cave Squeaker
· Asiagomphus yayeyamensis
· Aspidites ramsayi — Ramsay's python
· Assiminea pecos — Pecos assiminea
· Astacoides crosnieri
· Astacoides petiti
· Astacopsis gouldi — Giant Freshwater Crayfish, Giant Tasmanian Lobster
· Astatotilapia sp. nov. 'dwarf bigeye scraper'
· Astatotilapia sp. nov. 'shovelmouth'
· Astroblepus ubidiai — Andean catfish
· Astylosternus fallax
· Astylosternus laurenti
· Astylosternus nganhanus
· Astylosternus perreti
· Astylosternus ranoides
· Astylosternus schioetzi
· Ataeniobius toweri — Striped goodeid
· Ateles hybridus — Variegated Spider Monkey
· Ateles marginatus — White-cheeked Spider Monkey
· Atelognathus patagonicus
· Atelognathus praebasalticus
· Atelognathus reverberii
· Atelophryniscus chrysophorus
· Atelopus andinus
· Atelopus angelito
· Atelopus arsyecue
· Atelopus arthuri
· Atelopus balios
· Atelopus bomolochos
· Atelopus boulengeri
· Atelopus carauta — Rio Carauta Stubfoot Toad
· Atelopus carbonerensis — Venezuelan Yellow Frog
· Atelopus carrikeri
· Atelopus certus
· Atelopus chiriquiensis
· Atelopus chocoensis
· Atelopus chrysocorallus
· Atelopus coynei
· Atelopus cruciger — Rancho Grande Harlequin Frog
· Atelopus dimorphus
· Atelopus ebenoides
· Atelopus elegans
· Atelopus erythropus
· Atelopus eusebianus
· Atelopus exiguus
· Atelopus famelicus
· Atelopus farci
· Atelopus galactogaster
· Atelopus glyphus
· Atelopus guanujo
· Atelopus guitarraensis
· Atelopus halihelos
· Atelopus laetissimus
· Atelopus limosus
· Atelopus longibrachius
· Atelopus lozanoi
· Atelopus lynchi
· Atelopus mandingues
· Atelopus mindoensis
· Atelopus minutulus
· Atelopus monohernandezi
· Atelopus mucubajiensis
· Atelopus muisca
· Atelopus nahumae
· Atelopus nanay
· Atelopus nepiozomus
· Atelopus nicefori
· Atelopus oxyrhynchus
· Atelopus pachydermus
· Atelopus pedimarmoratus
· Atelopus peruensis
· Atelopus petriruizi
· Atelopus pictiventris
· Atelopus pinangoi — Green And Red Venter Harlequin Toad
· Atelopus planispina
· Atelopus pulcher
· Atelopus quimbaya
· Atelopus reticulatus
· Atelopus seminiferus
· Atelopus senex
· Atelopus sernai
· Atelopus simulatus
· Atelopus sonsonensis
· Atelopus sorianoi — Scarlet Harlequin Toad
· Atelopus subornatus
· Atelopus tamaense — Tamá Harlequin Frog
· Atelopus varius — Harlequin Frog
· Atelopus walkeri
· Atelopus zeteki — Golden Arrow Poison Frog, Golden Frog, Panamanian Golden Frog, Zetek's Golden Frog
· Atlantasellus cavernicolus
· Atlantoraja castelnaui — Spotback skate
· Atlapetes flaviceps — Yellow-headed Brush-finch
· Atlapetes melanopsis — Black-spectacled Brush-finch
· Atlapetes pallidiceps — Pale-headed Brush-finch
· Atopophrynus syntomopus
· Atrophaneura jophon — Sri Lankan Rose
· Aulacorhynchus huallagae — Yellow-browed Toucanet
· Aulopyge huegeli — Dalmatian Barbelgudgeon
· Austrocordulia leonardi — Sydney Hawk
· Austroglanis barnardi — Barnard's Rock-catfish
· Axis calamianensis — Calamanian Deer, Calamian Deer, Calamian Hog Deer, Philippine Deer
· Axis kuhlii — Bawean Deer, Bawean Hog Deer, Kuhl's Hog Deer
· Aye-Aye-Madagascar Lemur
· Aythya innotata — Madagascar Pochard
[edit] B
· Bahaba taipingensis — Chinese bahaba
· Balaenoptera borealis — Coalfish Whale, Pollack Whale, Rudolphi's Rorqual, Sei Whale
· Balaenoptera musculus — Blue Whale, Sibbald's rorqual, Sulphur-bottom whale
· Balaenoptera physalus — Common Rorqual, Fin Whale, Fin-backed Whale, Finback, Finner, Herring Whale, Razorback
· Balantiocheilos melanopterus — Silver Shark
· Balantiopteryx infusca — Ecuadorian Sac-winged Bat
· Balebrevied Cinclodes
· Batagur baska — Batagur, Common Batagur, Four-toed Terrapin, River Terrapin, Batagur Malais, Galápago Batagur
· Bathanalia howesi
· Batrachophrynus brachydactylus
· Batrachophrynus macrostomus — Lake Junin Frog
· Batrachoseps campi — Inyo Mountains Salamander
· Batrachuperus cochranae
· Batrachuperus gorganensis — Gorgan Salamander
· Batrachuperus londongensis — Longdong Stream Salamander
· Batrachuperus mustersi — Afghani Brook Salamander
· Beatragus hunteri — Hirola, Hunter's Antelope, Hunter's hartebeest
· Beddomeia capensis
· Beddomeia fallax
· Beddomeia minima
· Bedotia sp. nov. 'Manombo'
· Bedotia sp. nov. 'Sambava'
· Bedotia sp. nov. 'Vevembe'
· Bedotia tricolor
· Belgrandiella austriana
· Belgrandiella ganslmayri
· Belgrandiella mimula
· Belgrandiella parreyssi
· Belgrandiella pelerei
· Belgrandiella styriaca
· Belgrandiella wawrai
· Bellamya constricta
· Bellamya contracta
· Bellamya crawshayi
· Bellamya leopoldvillensis
· Bellamya liberiana
· Bellamya monardi
· Bellamya mweruensis
· Bellamya pagodiformis
· Bellamya phthinotropis
· Bellamya robertsoni
· Bellamya rubicunda
· Bellamya trochearis
· Bermudalana aruboides
· Bermudamysis speluncola
· Betta livida
· Betta miniopinna
· Betta persephone
· Betta spilotogena
· Bettongia tropica — Northern Bettong
· Biomphalaria barthi
· Bison bonasus — European Bison, Wisent
· Biswamoyopterus biswasi — Namdapha Flying Squirrel
· Bogidiella bermudensis
· Bokermannohyla izecksohni
· Bolitoglossa alvaradoi
· Bolitoglossa capitana
· Bolitoglossa carri
· Bolitoglossa celaque
· Bolitoglossa compacta
· Bolitoglossa conanti
· Bolitoglossa decora
· Bolitoglossa diaphora
· Bolitoglossa dunni
· Bolitoglossa engelhardti
· Bolitoglossa flavimembris
· Bolitoglossa franklini
· Bolitoglossa heiroreias — Holy-mountain Salamander
· Bolitoglossa jacksoni
· Bolitoglossa longissima
· Bolitoglossa magnifica — Magnificent Web-footed Salamander
· Bolitoglossa marmorea
· Bolitoglossa meliana
· Bolitoglossa minutula
· Bolitoglossa odonnelli
· Bolitoglossa oresbia
· Bolitoglossa pandi
· Bolitoglossa pesrubra
· Bolitoglossa porrasorum
· Bolitoglossa riletti
· Bolitoglossa salvinii
· Bolitoglossa sooyorum
· Bolitoglossa spongai
· Bolitoglossa stuarti
· Bolitoglossa subpalmata
· Bolitoglossa synoria
· Boninagrion ezoin
· Boninena callistoderma
· Boninena hiraseana
· Boninena ogasawarae
· Boninthemis insularis
· Boophis williamsi
· Bos javanicus — Banteng, Tembadau
· Bos sauveli — Grey Ox, Kouprey
· Bostrychia bocagei — Dwarf Olive Ibis
· Botaurus poiciloptilus — Australasian Bittern
· Bothriembryon perobesus
· Bothriembryon praecelcus
· Bothrops alcatraz — Alcatrazes Lancehead
· Bothrops insularis — Golden Lancehead, Queimada Island Bothrops
· Botia sidthimunki
· Boucardicus carylae
· Boucardicus culminans
· Boucardicus curvifolius
· Boucardicus delicatus
· Boucardicus divei
· Boucardicus esetrae
· Boucardicus fidimananai
· Boucardicus fortistriatus
· Boucardicus magnilobatus
· Boucardicus mahermanae
· Boucardicus randalanai
· Boucardicus simplex
· Boucardicus victorhernandezi
· Boulengerula niedeni
· Brachionichthys hirsutus — Spotted handfish
· Brachylophus fasciatus — Fiji Banded Iguana, South Pacific Banded Iguana
· Brachylophus vitiensis — Fiji Crested Iguana
· Brachyramphus brevirostris — Kittlitz's Murrelet
· Brachyramphus marmoratus — Marbled Murrelet
· Brachyteles arachnoides — Muriqui, Southern Muriqui, Woolly Spider Monkey
· Brachyteles hypoxanthus — Northern Muriqui, Muriqui
· Bradypodion setaroi — Setarolondongensis — Longdong Stream Salamander
· Batrachuperus mustersi — Afghani Brook Salamander
· Beatragus hunteri — Hirola, Hunter's Antelope, Hunter's hartebeest
· Beddomeia capensis
· Beddomeia fallax
· Beddomeia minima
· Bedotia sp. nov. 'Manombo'
· Bedotia sp. nov. 'Sambava'
· Bedotia sp. nov. 'Vevembe'
· Bedotia tricolor
· Belgrandiella austriana
· Belgrandiella ganslmayri
· Belgrandiella mimula
· Belgrandiella parreyssi
· Belgrandiella pelerei
· Belgrandiella styriaca
· Belgrandiella wawrai
· Bellamya constricta
· Bellamya contracta
· Bellamya crawshayi
· Bellamya leopoldvillensis
· Bellamya liberiana
· Bellamya monardi
· Bellamya mweruensis
· Bellamya pagodiformis
· Bellamya phthinotropis
· Bellamuffalo,
· Bubalus depressicornis — Anoa, Lowland Anoa
· Bubalus mindorensis — Tamaraw, Tamarou, Tamarau
· Bubalus quarlesi — Mountain Anoa
· Bufo amabilis
· Bufo amatolicus — Amatola Toad
· Bufo beddomii
· Bufo brauni
· Bufo caeruleostictus
· Bufo californicus — Arroyo toad
· Bufo canorus — Yosemite Toad
· Bufo cataulaciceps — Cuban Pine Toad
· Bufo cavifrons — Mountain Toad
· Bufo chavin
· Bufo claviger
· Bufo cristatus — Large-crested Toad
· Bufo djohongensis
· Bufo fastidiosus
· Bufo fluviaticus — Hispaniolan Crestless Toad
· Bufo fractus — Eastern Crested Toad
· Bufo gallardoi
· Bufo gemmifer — Jeweled Toad
· Bufo holdridgei
· Bufo houstonensis — Houston Toad
· Bufo ibarrai
· Bufo inyangae — Inyanga Toad
· Bufo kotagamai
· Bufo koynayensis
· Bufo kumquat
· Bufo lemur — Puerto Rican Crested Toad, Puerto Rican Toad