Animal Species Name Generator
Believable species names for invented wildlife
Invent new animal species with names that follow real taxonomic and field-guide conventions: descriptive common names like Lesser Dusk Vole or Rufous-crowned Marsh Kingfisher plus Latin-style binomials. Made for worldbuilders, sci-fi writers, game designers and biology teachers.
About animal species names
Real animal species names follow consistent patterns, and borrowing them is the quickest way to make an invented creature feel like it belongs in a field guide. Common names usually stack a descriptor, a habitat, and a base animal: Rufous-crowned Marsh Kingfisher, Lesser Dusk Vole, Banded Fen Otter. The descriptor is often a color or body feature (ash-throated, long-tailed, spectacled), the habitat tells you where it lives (reef, karst, tundra, mangrove), and comparative words like Greater, Lesser, Common, Dwarf, Northern and Southern signal that it belongs to a family of similar animals. Others name a finder (Hartwell's Pipit) or habit (Snail-eating Bayou Kite).
Scientific names are two-part Latin binomials: a capitalized genus and a lowercase species epithet, conventionally written in italics. The epithet is usually descriptive (nivalis for snowy, palustris for marsh-dwelling, velox for swift), geographic (borealis, australis, insularis) or honors a person. The names below pair real genera such as Vulpes, Strix and Salmo with plausible new epithets so they read like undescribed species.
When inventing a species for a novel, RPG bestiary, or worldbuilding project, decide first whether it is a subspecies of something familiar or something wholly new. Familiar animals with a twist (a Two-toed Swamp Sloth) sound authentic; entirely alien creatures need a base noun the reader can picture, even if it is loosely applied.
How to choose animal species names
- Build common names from three slots, descriptor + habitat + animal, and drop one slot for shorter names like Bramble Dormouse or Sunset Cichlid.
- Use hyphenated body descriptors (white-flanked, ridge-nosed, fringe-lipped); they are the hallmark of real ornithological and herpetological names.
- For Latin binomials keep the genus capitalized and the epithet lowercase, and match the epithet's ending to the genus gender where you can (Vulpes nivalis, Ursus ferrugineus).
- Add a distribution word (Northern, Southern, Lesser, Common, Insular) when you want to imply that related species exist elsewhere in your world.
- Pair each invented species with one line of ecology, its diet, range or a distinctive behavior; the name will feel earned rather than random.
Frequently asked questions
How are real animal species named?
Each species gets a two-part Latin scientific name (genus plus species epithet) governed by the ICZN code, and usually one or more common names that describe its appearance, habitat or discoverer, such as Red-throated Loon or Bengal Tiger.
Are the Latin names in this generator real species?
They pair real genus names with descriptive or honorific epithets, so they look authentic. The combinations were not checked against a species database, and some will match a described species or an old synonym. Check a database like ITIS or GBIF if you need to be sure a combination is unused.
Can I use these species names in a published book or game?
Yes. Species names are not trademarked or copyrighted, and invented ones are yours to use freely in fiction, tabletop supplements and video games.
What makes a fictional species name sound believable?
Specificity. Real names point to something observable, a color patch, a habitat, a call, so a Whistling Alder Grouse reads as real while a Shadow Fire Beast does not.
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All 1,000 animal species names
A: 51 names
- Abyssal Lantern Anglerfish
- Accipiter silvicola
- Achterberg's Chameleon
- Acinonyx pallidus
- Acipenser antiquus
- Acrocephalus delgadoi
- Agama ardens
- Ailurus montanus
- Alauda matutina
- Alcedo rivularis
- Alces palustris
- Alder Bark Beetle
- Alligator paludum
- Alpine Cinder Beetle
- Alpine Ridge Newt
- Alytes tinnulus
- Amber Reed Snail
- Amber-eyed Canopy Lemur
- Amberley's Fritillary
- Anas nivea
- Anguilla nocturna
- Anguilla oceanica
- Anguilla profunda
- Anser insularis
- Ant-following Thicket Antbird
A, continued
- Anthus whitcombi
- Antlered Oak Stag Beetle
- Apis silvatica
- Apteryx noctivagans
- Apus aetherius
- Aquila borealis
- Aquila cyanura
- Aquila tenebrosa
- Ara chrysoptera
- Araneus roridus
- Arctic Floe Sculpin
- Ardea gracilis
- Ardea sagittaria
- Ardea xanthogaster
- Armoured Fen Catfish
- Arvicola rivalis
- Ash Plateau Ibex
- Ash Scrub Bustard
- Ash-throated Cliff Swift
- Ash-winged Estuary Tern
- Ashcombe's Gazelle
- Asterias purpurascens
- Athene petraea
- Aurelia phosphorea
- Aythya vandermeeri
- Azure-winged Canyon Roller
B: 83 names
- Balaena caelestis
- Balaena caelestis minor
- Balaena profunda
- Balakrishnan's Keelback
- Banded Alder Sawfly
- Banded Fen Otter
- Banded Mudskimmer
- Banded Shingle Flounder
- Banded Willow Quoll
- Barbel-chinned Oxbow Sturgeon
- Bare-faced Limestone Gibbon
- Bare-throated Lava Booby
- Bark-stripping Cedar Porcupine
- Barking Scree Deer
- Barred Canopyhopper
- Barred Cave Salamander
- Barred Kelp Eel
- Basalt Rock Skink
- Basiliscus cursor
- Bay-winged Fen Harrier
- Beadlet Cove Anemone
- Beaked Sedge Turtle
- Bearded Cavecrawler
- Bearded Loam Lizard
- Bearded Rimrock Goat
- Bee-hunting Savanna Wasp
- Belted Reef Kingfisher
B, continued
- Big-eyed Trench Squid
- Bison pratensis
- Black-bellied Kelp Cormorant
- Black-capped Reed Tit
- Black-faced Heather Wheatear
- Black-lipped Fjord Seal
- Black-masked Cedar Ocelot
- Black-saddled Tidepool Puffer
- Blotched Lagoon Skate
- Blotched Sand Gecko
- Blue Cavern Glow-worm
- Blue-banded Reef Pipefish
- Blue-capped Vinetwister
- Blue-legged Canyon Tarantula
- Blue-lined Atoll Snapper
- Blue-throated Scree Bunting
- Blue-tongued Scrub Monitor
- Bluff Grazing Tortoise
- Bluff Kestrel
- Blunt-headed Vine Snake
- Blunt-nosed Trench Eel
- Bombina ignicolor
- Bombus alpestris
- Bombus wetherbyi
- Bone-dropping Summit Vulture
- Booming Mire Bittern
- Botaurus carmodyi
- Brackish Bayou Gar
B, continued
- Bradypus lentus
- Bramble Dormouse
- Bramble Leaf Insect
- Brannigan's Seal
- Brightwater's Tern
- Brindled Lava Mongoose
- Bristle-backed Forest Hog
- Bristle-tailed Sand Gerbil
- Broad-billed Reed Duck
- Broad-headed Loam Snake
- Broad-nosed Loam Mole
- Broad-tailed Peat Skink
- Broad-winged Cedar Katydid
- Bronze Heather Shieldbug
- Bronze Karst Beetle
- Bronze Sedge Beetle
- Bubo saxicola
- Buff Heathrunner
- Buff-bellied Wetland Shrew
- Buff-crowned Karst Wren
- Buff-spotted Arroyo Woodcock
- Bufo cinereus
- Bufo ferreirae
- Bufo matutinus
- Bufo squamosus
- Bumpy Reef Slug
- Burrow-dwelling Loam Cricket
- Buteo nimbosus
C: 97 names
- Cairn Grasshopper
- Calloway's Pocket Mouse
- Camelus arenosus
- Cancer scopulicola
- Candy-striped Clover Leafhopper
- Canis argentatus
- Canis borealis
- Canis erythrocephalus
- Canis palustris
- Canis tundrae
- Canopy Flying Frog
- Capra brumalis
- Capra insignis
- Capra saxicola
- Caprimulgus stridulus
- Carcharias albifrons
- Carcharias tenebrosus
- Carcharias velox
- Carduelis aurantia
- Castor magnus
- Castor oyelarani
- Casuarius tonans
- Cave-roosting Fig Bat
- Cebus garrulus
- Cerulean Fen Kingfisher
- Cerulean Scree Finch
- Cervus argenteus
- Cervus montivagus
- Cervus nemorosus
- Chamaeleo frondosus
- Chambered Abyssal Nautilus
- Charadrius litoreus
C, continued
- Chattering Palm Lory
- Checkered Riffle Barb
- Chelonia hyalina
- Chelonia viridissima
- Chelydra mordax
- Chestnut-backed Larch Creeper
- Chestnut-eared Gorse Chat
- Chevron Reef Wrasse
- Chevroned Reef Grouper
- Chinchilla cinerea
- Chiroptera lucens
- Cicada strepitans
- Ciconia atra
- Cinclus cataractae
- Cinder Cone Lizard
- Cinder-winged Nightjar
- Cinnamon Vale Deer
- Circus paludivagus
- Climbing Cypress Perch
- Cloaked Cliff Swift
- Cloud Grazing Yak
- Cloud Ridge Langur
- Cloud Ridge Quetzal
- Clown Tidepool Triggerfish
- Coastal Grazing Goose
- Collared Peat Lemming
- Coluber fulmineus
- Common Burrowmouse
- Common Roof Skink
- Common Rooftop Gecko
- Copper Isle Skink
- Copper Kettle Kingfisher
C, continued
- Copper-backed Ridge Skink
- Copper-headed Chaparral Racer
- Copper-throated Sunbird
- Coracias caelicolor
- Coral Bluff Iguana
- Coral-lipped Sea Slug
- Coral-nibbling Parrotfish
- Corvus argentatus
- Corvus littoralis
- Corvus lucidus
- Corvus nivalis
- Corvus paludicola
- Corvus plumbeus
- Coturnix graminea
- Crab-eating Mangrove Macaque
- Crag Leaping Chamois
- Crescent-marked Reef Wrasse
- Crested Bogrunner
- Crested Kelp Duck
- Crested Thicket Rail
- Cricetus granarius
- Crimson Flowerprober
- Crimson-browed Moorland Robin
- Crimson-crested Bowerbird
- Crimson-throated Bushshrike
- Crocodylus umbrosus
- Crowned Vale Crane
- Cuculus fallax
- Curl-horned Summit Mouflon
- Cushion Tidepool Starfish
- Cygnus ferreus
- Cyprinus ochraceus
- Cyprinus vernalis
D: 31 names
- Dappled Pampas Agouti
- Dark-hooded Taiga Jay
- Dasypus scutatus
- Dawn Cliff Swallow
- Dawn-singing Willow Thrush
- Delacroix's Lorikeet
- Delphinus australis
- Delphinus borealis
- Delphinus splendens
- Delta Mud Skipper
- Desmana fluvicola
- Didelphis arboricola
- Diomedea ventorum
- Diving Skerry Petrel
- Dog-toothed Cove Whelk
- Double-spurred Bramble Fowl
- Drab Riffle Mayfly
- Draco volans major
- Drumming Bamboo Woodpecker
- Dune Emerald Beetle
- Dunmore's Vole
- Dusky Bamboo Tamarin
- Dusky Barkcrawler
- Dusky Highland Shrew
- Dusky Tarn Axolotl
- Dusky-winged Sedge Moth
- Dust-bathing Mesa Quail
- Dwarf Cypress Bullfrog
- Dwarf Lagoon Sawfish
- Dwarf Peat Boar
- Dwarf Reedbuck
E: 23 names
- Eastern Baobab Galago
- Eastern Cloud Marten
- Eastern Heather Slow Worm
- Egretta sokolovae
- Elephas montanus
- Ember Peat Newt
- Ember Tree Viper
- Ember-backed Vine Gecko
- Emberiza segetum
- Emerald Gully Sunbird
- Emerald Streamjumper
- Emperor Willow Dragonfly
- Enhydra algicola
- Equus pratensis
- Equus striatus
- Equus zebrinus
- Erinaceus fuscus
- Erinaceus lombardii
- Erithacus pruinosus
- Esox rapax
- Estuary Bull Shark
- Eunectes stagnicola
- Exocoetus saliens
F: 38 names
- Fairweather's Storm Petrel
- Falco chrysops
- Falco palustris
- Falco rubricollis
- Falco sagittarius
- Falco velox
- Fan-tailed Ravine Flycatcher
- Fat-tailed Dune Gecko
- Fawn-breasted Marsh Pipit
- Feather-finned Cove Lionfish
- Felis nocturna
- Felis rupestris
- Felis umbrosa
- Felis vespertina
- Fen Grazing Antelope
- Fen Lantern Spider
- Fenwick's Warbler
- Fig-eating Canopy Bat
- Fine-scaled Ridge Lizard
- Fire-bellied Ash Newt
- Fish-catching Tarn Owl
- Fjord Grey Seal
- Flame-chested Cedar Tanager
- Flame-shouldered Juniper Genet
- Flat-headed Estuary Catfish
- Formica rubiginosa
- Formica yilmazi
- Four-eyed Reef Fish
- Fregata praedatrix
- Frill-gilled Trench Chimaera
- Frilled Meadow Newt
- Frilled Reef Dragonet
- Fringe-lipped Cave Bat
- Fringed Cave Gecko
- Fringilla nemorum
- Frost Ridge Weasel
- Frost Vole
- Frosted Tussock Moth
G: 55 names
- Gadus gelidus
- Galago susurrans
- Garrulus caerulans
- Gavia haugeni
- Gavialis tenuidens
- Gazella deserticola
- Gekko hashimotoi
- Gekko lucens
- Gekko lucifer
- Gekko spinosus
- Genetta annulata
- Ghost Reef Shrimp
- Ghost Sedge Heron
- Giant Abyssal Isopod
- Giant Fen Toad
- Giant Fernbank Centipede
- Giraffa tessellata
- Glacier Meltwater Grayling
- Glacier Stonefly
- Glass-bellied Cascade Caecilian
- Glass-finned Atoll Damselfish
- Glassy Reef Shrimp
- Glen Wood Mouse
- Gliding Banyan Lizard
- Glossy Bayou Coucal
- Glossy Rillskater
- Gold-banded Thistle Orbweaver
G, continued
- Golden Cascade Mahseer
- Golden Peat Moth
- Golden Rockjumper
- Golden Torrent Spadefoot
- Golden-eyed Brookdarter
- Golden-rumped Canyon Pangolin
- Golden-shouldered Acacia Barbet
- Goose-necked Headland Barnacle
- Gorge Falconet
- Great Bog Weasel
- Great Pampas Tinamou
- Great Trench Squid
- Greater Fen Bittern
- Greater Floodplain Capybara
- Greater Ravine Ibex
- Greater Saltmarsh Antelope
- Greater Sandplunger
- Greater Seamount Albatross
- Green Birch Lacewing
- Green-backed Vine Chameleon
- Grey-cheeked Kelp Goose
- Grey-footed Moorland Stoat
- Grey-mantled Isle Gull
- Grey-tailed Peat Weasel
- Grizzled Fen Marmot
- Grizzled Tor Marmot
- Grus tenuirostris
- Gulo hibernus
H: 37 names
- Hadal Snailfish
- Haddington's Swift
- Hairy-eared Dune Hedgehog
- Hairy-nosed Peat Wombat
- Halberd-horned Antelope
- Half-collared Fen Kingfisher
- Halloran's Dolphin
- Hard-nosed Ravine Loach
- Hartwell's Pipit
- Heath Ember Bumblebee
- Helix roscida
- Helmeted Ridge Guineafowl
- Herpestes audax
- Highland Cave Owl
- Highland Silt Trout
- Hinge-backed Thornveld Tegu
- Hippocampus saltator
- Hippopotamus minor
- Hirundo litoralis
- Hoary Fell Dotterel
- Hollis's Nuthatch
- Homarus caerulescens
- Honey Atoll Cowrie
- Hooded Basalt Cormorant
- Hooded Moss Frog
- Hooded Pinecracker
- Hooded Steppe Weasel
- Hook-billed Isle Crow
- Horned Bramble Toad
- Horned Marsh Toad
- Humming Moorland Hawkmoth
- Humphead Shoal Parrotfish
- Hyaena crocuta minor
- Hydrochoerus stagnalis
- Hyla foliorum
- Hylobates canorus
- Hystrix nigrispina
I: 10 names
- Ice Fjord Sculpin
- Icemelt Springtail
- Iguana silvestris
- Iron-billed Estuary Stork
- Ishikawa's Goby
- Island Dusk Bat
- Isle Storm Petrel
- Ivory Bluff Falcon
- Ivory Fen Ibis
- Ivory-billed Mangrove Heron
J: 3 names
- Jaculus saltans
- Jade Bamboo Anole
- Jewelled Orchid Mantis
K: 6 names
- Karlsson's Lemming
- Karst Blind Salamander
- Keel-scaled Mesa Rattlesnake
- Kelp Ghost Pipefish
- Kelp-grazing Limpet
- Kessler's Cave Cricket
L: 62 names
- Lacerta lapidicola
- Lacewing Damselfly
- Lachance's Pike
- Lagoon Ribbon Eel
- Lampyris stellifera
- Lanius spinetorum
- Lantern-jawed Dragonfish
- Larch Cone Moth
- Larus tempestatis
- Laughing Canyon Dove
- Leaf-nosed Banyan Colugo
- Leaf-rolling Birch Weevil
- Leafcutter Banyan Ant
- Leaping Cascade Salmon
- Lemon-vented Palm Oriole
- Lemur vespertinus
- Leopard Seagrass Catshark
- Lepus caeruleus
- Lepus campestris
- Lepus glacialis
- Lepus tundrae
- Lepus velox
- Lesser Arroyo Armadillo
- Lesser Brook Redstart
- Lesser Dusk Vole
- Lesser Kelp Crab
- Lesser Sandbar Plover
- Lesser Thornpecker
- Libellula vitripennis
- Lichen-grazing Tundra Reindeer
- Lichen-grey Fell Caribou
L, continued
- Lilac-breasted Baobab Turaco
- Lindqvist's Shrew
- Lined Prairie Hognose
- Lion's-mane Polar Jellyfish
- Little Moorland Midwife Toad
- Little Oxbow Desman
- Little Sedge Warbler
- Little Silt Sculpin
- Little Stiltwalker
- Loam Digger Wasp
- Loligo translucida
- Long-billed Mudflat Godwit
- Long-crested Basin Eagle
- Long-eared Wadi Hare
- Long-jawed Bayou Harvestman
- Long-legged Tussock Rat
- Long-snouted Delta Otter
- Long-tailed Cloud Marten
- Long-toed Lilytrotter
- Longspine Canyon Rattail
- Lophius insidiator
- Lowland Peat Turtle
- Loxia laricis
- Lucanus ramosus
- Luscinia dulcisona
- Lutra fluminea
- Lutra fluviatilis
- Lutra glacialis
- Lynx palustris
- Lyre-tailed Fen Grebe
- Lyre-tailed Nightjar
M: 50 names
- Macaca fontana
- Maned Paramo Guanaco
- Mangrove Mudcrab
- Manis aenea
- Mantis insidiosa
- Many-banded Vine Krait
- Marbled Cinder Gecko
- Marbled Loam Salamander
- Marchetti's Tree Frog
- Marmalade Meadow Hoverfly
- Marmota sibilans
- Marsh Fritillary Moth
- Marsh Lantern Firefly
- Martes vespera
- Masked Sedge Weaver
- Meadow Ringlet Butterfly
- Meles brevicaudus
- Mephitis bilineata
- Mergus tremblayi
- Merops solaris
- Milk-throated Sap Possum
- Milvus ventosus
- Mist Gully Frog
- Monodon pallens
- Montalvo's Hummingbird
M, continued
- Moon-eyed Cavefish
- Moon-spotted Cusk
- Moonlight Bamboo Gourami
- Moor Bog Bush-cricket
- Moss-backed Fern Mantella
- Moss-nesting Fell Pipit
- Mossy Brook Echidna
- Mossy-backed Cascade Antbird
- Motacilla pratorum
- Mottled Isle Snake
- Mottled Riverbank Skink
- Mottled Snowburrower
- Mound-building Mesa Termite
- Mound-nesting Scrub Megapode
- Mouse-eared Orchard Loris
- Moyo's Weaver
- Mud-daubing Oxbow Wasp
- Muraena latebrosa
- Mus linnellae
- Mus rupestris
- Muscicapa fontainei
- Mustela nocturna
- Mustela sylvestris
- Mustela velutina
- Myocastor paludosus
N: 23 names
- Naja rubra
- Naked-tailed Bramble Rat
- Narrow-barred Strait Mackerel
- Nasua annulicauda
- Natrix rivorum
- Nautilus abyssalis
- Nectar-feeding Orchid Bat
- Needle-nosed Delta Garfish
- Neon Blackwater Tetra
- Net-winged Brook Caddisfly
- Night-banded Canyon Kingsnake
- Night-flying Juniper Moth
- Northern Floe Puffin
- Northern Glass Frog
- Northern Glass Squid
- Northern Icediver
- Northern Icefield Lynx
- Northern Mere Pike
- Novak's Horseshoe Bat
- Nucifraga alpicola
- Numenius falcatus
- Nwosu's Mole Rat
- Nycticorax adeyemii
O: 30 names
- Ochotona nivicola
- Ochre Basin Toad
- Ochre Sand Boa
- Octopus lividus
- Octopus vagans
- Octopus versicolor
- Odobenus septentrionalis
- Oduya's Bushbaby
- Oenanthe kowalczyki
- Okafor's Sunbird
- Okoro's Duiker
- Olive Mosshen
- Olive Oxbow Mudpuppy
- Olive-flanked Bamboo Babbler
- Olive-shelled Shoal Loggerhead
- Onyx Cave Millipede
- Onyx Ridge Raven
- Opal Tidepool Nudibranch
- Orange-spotted Reef Goby
- Orcinus meridionalis
- Oriolus meridianus
- Ormsby's Leaf Warbler
- Ornate Oasis Softshell
- Ornithorhynchus torrentium
- Oryx nebulosus
- Otus nebularis
- Ovibos lanatus
- Ovis alpina
- Ovis barbata
- Ovis rupicola
P: 71 names
- Paddle-tailed Karst Newt
- Painted Delta Turtle
- Painted Karst Frog
- Pale Cave Salamander
- Pale Saltpan Gazelle
- Pale Saltskimmer
- Pale Seamount Hagfish
- Pale-eyed Karst Snake
- Pale-legged Saltpan Avocet
- Pale-throated Cave Swiftlet
- Pandion piscator
- Panthera aurea
- Panthera fulgens
- Panthera smaragdina
- Panthera umbratica
- Panthera umbrosa
- Paper-nest Acacia Hornet
- Papilio caeruleus
- Papio saxosus
- Passer imbrifer
- Passer nivalis
- Passer olivaceus
- Peacock Atoll Mantis Shrimp
- Pearl-scaled Tarn Char
- Pearl-spotted Savanna Owlet
- Peat Bog Lemming
- Pelecanus australis
- Pelobates arator
- Peppered Larch Skunk
- Perca scintillans
- Perdix arvorum
- Petrenko's Hamster
- Phalacrocorax scopulorum
- Phasianus ignicollis
- Phoca insularis
P, continued
- Phoca murina
- Phoca vitrea
- Phocoena pelagica
- Phoenicopterus salinarum
- Phoenicurus thackerayi
- Phylloscopus halvorseni
- Physeter abyssicola
- Pica argentea
- Picus rufifrons
- Pied Floe Walrus
- Pied Skerry Guillemot
- Pied Tidecreeper
- Pink-lipped Seagrass Conch
- Pink-throated Palm Basilisk
- Plain-crowned Willow Vireo
- Plains Bounding Wallaby
- Platalea limicola
- Plated Sand Lizard
- Plumed Rain Quail
- Plumed Ravine Quail
- Podiceps olanderi
- Polar Floe Krill
- Polar Icefish
- Polar Lumpsucker
- Potos mellivorus
- Prickly Dune Skink
- Procyon aquaticus
- Proteus caecus
- Psittacus violaceus
- Puffed Reed Warbler
- Purple Elm Hairstreak
- Pygmy Cairn Vole
- Pygmy Granite Nutcracker
- Pygmy Shale Anteater
- Pyrrhocorax nivium
- Python auratus
Q: 1 name
- Quillan's Kite
R: 59 names
- Racket-tailed Fig Motmot
- Rain Canopy Treefrog
- Rainbow Limestone Sandfish
- Raja arenaria
- Raja lunaris
- Raja stellata
- Rallus furtivus
- Ramphastos igneus
- Rana ashdownae
- Rana lacustris
- Rana luminosa
- Rana vitrea
- Rangifer lichenivorus
- Rattus fluvialis
- Rattus macallisteri
- Ravensworth's Petrel
- Ravine Piping Frog
- Ravine Squeaker Frog
- Red-clawed Wadi Scorpion
- Red-eared Cliff Slider
- Red-finned Brook Shiner
- Red-flanked Granite Agama
- Reef Flame Angelfish
- Reef-crawling Hermit Crab
- Regulus abietinus
- Rhinoceros glaucus
- Ribbed Shingle Limpet
- Ribbon-tailed Sound Moray
- Ridge-backed Sand Skink
R, continued
- Ridge-nosed Vale Viper
- Ridgeback Trench Crab
- Rimrock Chuckwalla
- Ringed Cliff Plover
- Ringed Sandburrower
- Ringed Steppe Fox
- Rock-nesting Fen Petrel
- Root-digging Veldt Aardvark
- Rose-fronted Cactus Parakeet
- Rosy Escarpment Cobra
- Rough-skinned Fen Newt
- Round-eared Cave Bat
- Ruby-cheeked Mistletoe Waxbill
- Ruddy Larch Nuthatch
- Ruddy Palm Bilby
- Ruddy Sedge Kingfisher
- Rufous Fernbank Tenrec
- Rufous Fernwren
- Rufous-bellied Gorge Wren
- Rufous-crowned Marsh Kingfisher
- Rufous-necked Marsh Bunting
- Rupicapra nubicola
- Ruskova's Sturgeon
- Russet Prairie Peccary
- Russet Tarn Dipper
- Russet-capped Thistle Siskin
- Rust-flanked Sedge Vole
- Rusty Basin Mongoose
- Rusty Blackbuck
- Rusty Gorge Swift
S: 151 names
- Sable Marsh Harrier
- Sable Snowcock
- Saffron Sand Wasp
- Saffron Sundew Butterfly
- Saiga peregrina
- Salamandra cavernicola
- Salamandra ferox
- Salamandra flammea
- Salmo aurantiacus
- Salmo aureolus
- Salmo montanus
- Saltmarsh Reed Sparrow
- Sand-coloured Steppe Lark
- Sand-maned Savanna Badger
- Sand-swimming Wadi Whiptail
- Sandstone Dwarf Serow
- Sap-sucking Maple Flicker
- Sapphire-bellied Torrent Trogon
- Saturnia lunifera
- Saw-backed Bayou Caiman
- Saw-horned Pine Longhorn
- Saw-toothed Abyssal Viperfish
- Saxicola abernathyi
- Scaly Logrunner
- Scaly-breasted Fern Pitta
- Scarabaeus volvens
- Scarce Chalk Swallowtail
- Scarlet Kelp Slug
- Scarlet Reedhopper
- Scimitar-horned Vale Oryx
- Scincus sabulosus
- Sciurus caeruleus
- Sciurus ignifer
- Sciurus insularis
- Sciurus leucopus
- Sciurus nemoralis
- Scorpio noctilucus
S, continued
- Scree Wolf Spider
- Sedge-nesting Rail
- Seed-cracking Thistle Grosbeak
- Sepia fulgens
- Sepia purpurea
- Sepia sericea
- Serinus dumetorum
- Seven-spotted Thistle Ladybird
- Shadow Vine Viper
- Shaggy Glacier Muskox
- Sharp-tailed Steppe Grouse
- Sharp-winged Icefield Skua
- Shell-cracking Tidepool Wrasse
- Shielded Marsh Turtle
- Short-eared Tundra Fox
- Short-horned Badland Adder
- Short-snouted Oasis Bandicoot
- Short-tailed Scrubhen
- Short-toed Mesa Wagtail
- Sickle-billed Estuary Curlew
- Sickle-finned Surf Pompano
- Silky Birch Marmoset
- Silt Bank Loach
- Silt Burrowing Frog
- Silurus vorax
- Silver Delta Minnow
- Silver Hatchet Lanternfish
- Silver Wavehopper
- Silver-backed River Tapir
- Silver-maned Plateau Takin
- Silver-tailed Dune Jerboa
- Silverside Cavefish
- Sitta corticola
- Skulking Gorse Crake
- Slate Fen Egret
- Slate-crowned Fig Parrot
- Slate-grey Highland Owl
- Slaty Cragcreeper
S, continued
- Slender Vine Snake
- Slender-snouted Floodplain Gharial
- Slipper Shoal Lobster
- Small-toothed Reef Shark
- Smoky Cypress Macaque
- Smoky Headland Shearwater
- Smooth-backed Marsh Turtle
- Snail-eating Bayou Kite
- Snow Cairn Hare
- Snowline Cairn Hare
- Snowy Cairn Ptarmigan
- Soft-shelled Silt Turtle
- Sooty Ashgleaner
- Sooty Ravine Warbler
- Sooty Reef Tern
- Sorensen's Eider
- Sorex minimus
- Sorex pradhani
- Southern Frost Weevil
- Southern Ridgewalker
- Southern Rock Hyrax
- Southern Shoal Porpoise
- Spade-footed Loam Toad
- Spangled Banyan Drongo
- Speartail Lagoon Ray
- Speartail Sedge Damselfly
- Speckle-throated Cliff Pigeon
- Speckled Lantern Moth
- Speckled Riffle Darter
- Spectacled Marsh Owl
- Spectacled Reef Ray
- Spheniscus fretensis
- Sphenodon vetustus
- Sphinx umbra
- Spiny Headland Dogfish
- Spiny Kelp Urchin
- Spiny Kelpclinger
- Spiny Seamount Brittle Star
S, continued
- Spiral-horned Escarpment Kudu
- Spot-nosed Granite Tahr
- Spotted Leafgleaner
- Spotted Sargasso Frogfish
- Spotted Sedge Skunk
- Spur-winged Fen Lapwing
- Squalus tenebrarum
- Star-shelled Savanna Padloper
- Steppe Whistling Duck
- Steppe Whistling Marmot
- Sterna procellosa
- Stilt-legged Lava Cricket
- Stone-turning Brook Dipper
- Storm Petrel Shark
- Storm-plumed Petrel
- Stout-billed Limestone Chough
- Straw-headed Prairie Longspur
- Streak-backed Meadow Lark
- Streaked Cliff Rat
- Streaked Reedcreeper
- Stripe-necked Thornveld Civet
- Striped Tussock Vole
- Striped Veldt Aardwolf
- Strix australis
- Strix crepuscularis
- Strix glacialis
- Strix hyalina
- Strix umbrata
- Stroud's Forest Robin
- Struthio velocipes
- Sturnus aureus
- Sula caerulipes
- Sun-backed Terrapin
- Sun-crested Woodhen
- Sundew Jumping Spider
- Sunset Cichlid
- Swift-footed Plainsrunner
- Sylvia ostrowskii
T: 53 names
- Tachyglossus formicarius
- Talpa obradovici
- Talpa profunda
- Tapirus riparius
- Tarsius lunatus
- Tawny Duneskipper
- Tawny Mesa Pika
- Tawny-browed Juniper Thrush
- Taxidea fossoria
- Testudo loricata
- Testudo maritima
- Testudo saxatilis
- Tetrao pinetorum
- Thick-billed Highland Crow
- Thick-furred Taiga Wolverine
- Thickset Loam Beetle
- Thin-spined Acacia Porcupine
- Thin-tailed Peat Skink
- Thornback Plains Lizard
- Thorny Shoal Stingray
- Thorvald's Auk
- Thread-finned Seagrass Seahorse
- Three-striped Kelp Blenny
- Thunnus pelagius
- Tide-following Shingle Turnstone
- Tiger Floodplain Lungfish
T, continued
- Tiger-striped Lava Racerunner
- Timber Fen Elk
- Torpedo fulgurans
- Trap-building Dune Antlion
- Trench Lantern Squid
- Trichechus placidus
- Tringa aestuaria
- Triturus lacunarum
- Trochilus stellaris
- Troglodytes filicum
- Trumpeting Floodplain Swan
- Tufted Cliff Bat
- Tufted Gorge Squirrel
- Tundra Wolf Spider
- Tunnelling Prairie Vole
- Turdus insularis
- Turdus melanurus
- Turdus rufiventris
- Tussock Skipper Butterfly
- Twilight Bristlemouth
- Twilight Marsh Owl
- Twilight Marsh Rail
- Twin-crested Marsh Cockatoo
- Twin-spotted Bramble Finch
- Two-banded Sedge Beetle
- Two-toed Swamp Sloth
- Tyto pallidissima
U: 6 names
- Umber Cliff Rat
- Underhill's Burrowing Owl
- Ursus ferrugineus
- Ursus hiemalis
- Ursus nivalis minor
- Ursus paludicola
V: 22 names
- Vale Nightingale
- Vanterpool's Anole
- Varanus arenarius
- Varanus arenicola
- Varanus mwangii
- Varanus purpureus
- Varga's Rock Lizard
- Veiled Karst Chameleon
- Velvet Bog Mouse
- Velvet Moorland Ant
- Velvet-horned Forest Duiker
- Verdant Hill Chameleon
- Verdant Loam Cricket
- Vespa minax
- Vespertilio tacitus
- Violet-naped Orchid Hummingbird
- Vipera bicolor
- Viverra vittata
- Vombatus fossor
- Vulpes cinerascens
- Vulpes lunaris
- Vulpes nivalis
W: 29 names
- Wading Saltpan Stilt
- Wandering Trench Cuttlefish
- Warty Karst Toad
- Warty Seamount Stonefish
- Wattled Thornveld Francolin
- Wave-skimming Shearwater
- Web-casting Fern Spider
- Wedge-tailed Trench Skate
- Western Chaparral Coyote
- Western Sundew Snail
- Whiskered Peat Catfish
- Whiskered Slough Bullhead
- Whistling Alder Grouse
- Whistling Marshpiper
- White-bellied Stonehopper
- White-browed Heather Polecat
- White-clawed Brook Crayfish
- White-flanked Tundra Hare
- White-plumed Cypress Honeyeater
- White-rumped Shingle Sandpiper
- White-throated Ridge Swift
- White-tipped Bramble Shrike
- Wide-eyed Canopy Glider
- Wide-mouthed Peat Catfish
- Winterbourne's Ptarmigan
- Wire-tailed Oxbow Martin
- Wood-boring Elm Beetle
- Woolly Cliff Monkey
- Wrinkle-faced Cavern Toad
X: 1 name
- Xiphias ensifer
Y: 7 names
- Yamazaki's Salamander
- Yellow-browed Bushcreeper
- Yellow-crowned Fen Bulbul
- Yellow-eyed Cavern Salamander
- Yellow-footed Mangrove Crab
- Yellow-masked Atoll Butterflyfish
- Yellow-striped Brook Siren