Common Name - -	Family : Order
Yacare caiman - -	Alligatoridae : Crocodilia
Yangtze catfish - -	Siluridae : Siluriformes
Yangtze finless porpoise - -	Phocoenidae : Cetartiodactyla
Yangtze sturgeon - -	Acipenseridae : Acipenseriformes
Yellow and black walking toad - -	Bufonidae : Anura
Yellow bodied clubtail - -	Papilionidae : Lepidoptera
Yellow boring sponge - -	Clionidae : Clionaida
Yellow bullhead - -	Ictaluridae : Siluriformes
Yellow cave sponge - -	Aplysinidae : Verongiida
Yellow clam - -	Veneridae : Venerida
Yellow cluster anemone - -	Parazoanthidae : Zoantharia
Yellow cururu toad - -	Bufonidae : Anura
Yellow dog tick - -	Amblyommidae : Ixodida
Yellow dung fly - -	Scatophagidae : Diptera
Yellow fattail scorpion - -	Buthidae : Scorpiones
Yellow fever mosquito - -	Culicidae : Diptera
Yellow field bell moth - -	Tortricidae : Lepidoptera
Yellow fly - -	Tabanidae : Diptera
Yellow golden frog - -	Mantellidae : Anura
Yellow golf ball sponge - -	Tetillidae : Tetractinellida
Yellow hairy flower wasp - -	Scoliidae : Hymenoptera
Yellow hedgehog sponge - -	Polymastiidae : Polymastiida
Yellow horny coral - -	Gorgoniidae : Gorgonacea
Yellow jack - -	Carangidae : Carangiformes
Yellow lattice sponge - -	Clathrinidae : Clathrinida
Yellow lobed sponge - -	Myxillidae : Poecilosclerida
Yellow marmalade bee - -	Apidae : Hymenoptera
Yellow marmorated stink bug - -	Pentatomidae : Heteroptera
Yellow meadow ant - -	Formicidae : Hymenoptera
Yellow mealworm - -	Tenebrionidae : Coleoptera
Yellow mesh sea star - -	Ophidiasteridae : Valvatida
Yellow mocis moth - -	Noctuidae : Lepidoptera
Yellow mongoose - -	Herpestidae : Carnivora
Yellow oak button moth - -	Tortricidae : Lepidoptera
Yellow Oak casebearer moth - -	Coleophoridae : Lepidoptera
Yellow peach moth - -	Crambidae : Lepidoptera
Yellow perch - -	Percidae : Perciformes
Yellow polyps - -	Parazoanthidae : Zoantharia
Yellow porostome - -	Dendrodorididae : Nudibranchia
Yellow pot sponge - -	Acorinidae : Astrophorida
Yellow potato cyst nematode - -	Heteroderidae : Tylenchida
Yellow prickly branching sponge - -	Pseudoceratinidae : Verongiida
Yellow prickly sponge - -	Aplysillidae : Dendroceratida
Yellow rice stemborer - -	Crambidae : Lepidoptera
Yellow rose button moth - -	Tortricidae : Lepidoptera
Yellow scale - -	Diaspididae : Homoptera
Yellow scorpion - -	Buthidae : Scorpiones
Yellow sea pen - -	Veretillidae : Pennatulacea
Yellow sea rod - -	Plexauridae : Alcyonacea
Yellow sea squirt - -	Cionidae : Phlebobranchia
Yellow sea whip - -	Gorgoniidae : Gorgonacea
Yellow shadow ant - -	Formicidae : Hymenoptera
Yellow spotted fire salamander - -	Salamandridae : Urodela
Yellow spotted sea slug - -	Chromodorididae : Nudibranchia
Yellow sugarcane aphid - -	Aphididae : Homoptera
Yellow thief ant - -	Formicidae : Hymenoptera
Yellow tip - -	Pieridae : Lepidoptera
Yellow toad - -	Bufonidae : Anura
Yellow top sugarcane borer - -	Crambidae : Lepidoptera
Yellow tortrix - -	Tortricidae : Lepidoptera
Yellow tree coral - -	Dendrophylliidae : Scleractinia
Yellow tube sponge - -	Aplysinidae : Verongiida
Yellow umbrella slug - -	Tylodinidae : Umbraculida
Yellow-banded day sphinx - -	Sphingidae : Lepidoptera
Yellow-banded grass skimmer - -	Syrphidae : Diptera
Yellow-banded polypore darkling beetle - -	Tenebrionidae : Coleoptera
Yellow-banded timber beetle - -	Scolytidae : Coleoptera
Yellow-bellied house gecko - -	Gekkonidae : Squamata
Yellow-bellied poison frog - -	Dendrobatidae : Anura
Yellow-bellied poison frog - -	Dendrobatidae : Anura
Yellow-bellied sea snake - -	Elapidae : Squamata
Yellow-bellied slider - -	Emydidae : Testudines
Yellow-bellied toad - -	Bombinatoridae : Anura
Yellow-belly flounder - -	Pleuronectidae : Pleuronectiformes
Yellowbelly puffer - -	Tetraodontidae : Tetraodontiformes
Yellow-bowed longhorn beetle - -	Cerambycidae : Coleoptera
Yellow-brown diving beetle - -	Dytiscidae : Coleoptera
Yellow-collared dart - -	Noctuidae : Lepidoptera
Yellow-collared scape moth - -	Ctenuchidae : Lepidoptera
Yellow-dotted stilt - -	Gracillariidae : Lepidoptera
Yellow-dusted cream moth - -	Geometridae : Lepidoptera
Yellow-edged frost lichen - -	Physciaceae : Caliciales
Yellow-edged lyretail - -	Serranidae : Perciformes
Yellow-edged lyretail - -	Serranidae : Perciformes
Yellow-edged lyretail - -	Serranidae : Perciformes
Yellow-edged moray - -	Muraenidae : Anguilliformes
Yellow-edged nudibranch - -	Cadlinidae : Nudibranchia
Yellow-eyed mullet - -	Mugilidae : Mugiliformes
Yellow-faced bell moth - -	Tortricidae : Lepidoptera
Yellowfin grouper - -	Serranidae : Perciformes
Yellowfin puffer - -	Tetraodontidae : Tetraodontiformes
Yellowfin pufferfish - -	Tetraodontidae : Tetraodontiformes
Yellowfin surgeonfish - -	Acanthuridae : Acanthuriformes
Yellowfin tuna - -	Scombridae : Scombriformes
Yellowfin whiting - -	Sillaginidae : Perciformes
Yellow-footed ant - -	Formicidae : Hymenoptera
Yellow-fronted oil-digger - -	Anthophoridae : Hymenoptera
Yellowhead catfish - -	Bagridae : Siluriformes
Yellow-headed fireworm - -	Tortricidae : Lepidoptera
Yellow-headed honeypot ant - -	Formicidae : Hymenoptera
Yellow-headed lichen moth - -	Erebidae : Lepidoptera
Yellow-headed poison frog - -	Dendrobatidae : Anura
Yellow-headed spruce sawfly - -	Tenthredinidae : Hymenoptera
Yellow-horned horsefly - -	Tabanidae : Diptera
Yellowish elongate chafer - -	Scarabaeidae : Coleoptera
Yellow-legged clearwing - -	Sesiidae : Lepidoptera
Yellow-legged mining-bee - -	Andrenidae : Hymenoptera
Yellow-legged mud-dauber wasp - -	Sphecidae : Hymenoptera
Yellow-legged velvetback - -	Carabidae : Coleoptera
Yellow-line quaker moth - -	Noctuidae : Lepidoptera
Yellow-lined thorn - -	Geometridae : Lepidoptera
Yellow-lipped sea krait - -	Elapidae : Squamata
Yellowmouth barracuda - -	Sphyraenidae : Carangiformes
Yellow-mouth whelk - -	Buccinidae : Neogastropoda
Yellownecked caterpillar - -	Notodontidae : Lepidoptera
Yellownecked dry-wood termite - -	Kalotermitidae : Isoptera
Yellow-ringed cat snake - -	Colubridae : Squamata
Yellowside ground beetle - -	Carabidae : Coleoptera
Yellow-spot twist moth - -	Tortricidae : Lepidoptera
Yellow-spotted brittle star - -	Ophiocomidae : Ophiacanthida
Yellow-spotted jewel beetle - -	Buprestidae : Coleoptera
Yellow-spotted longicorn beetle - -	Cerambycidae : Coleoptera
Yellow-spotted millipede - -	Xystodesmidae : Polydesmida
Yellowspotted puffer - -	Tetraodontidae : Tetraodontiformes
Yellowstone white tiger beetle - -	Cicindelidae : Coleoptera
Yellow-striped barracuda - -	Sphyraenidae : Carangiformes
Yellow-striped emperor - -	Lethridae : Perciformes
Yellow-striped flea beetle - -	Chrysomelidae : Coleoptera
Yellow-striped poison frog - -	Dendrobatidae : Anura
Yellowtail amberjack - -	Carangidae : Carangiformes
Yellow-tail rockfish - -	Sebastidae : Perciformes
Yellowtail snapper - -	Lutjanidae : Perciformes
Yucat�n rattlesnake - -	Viperidae : Squamata
Yucca moth - -	Prodoxidae : Lepidoptera
Yucca plant bug - -	Miridae : Heteroptera
Yungas red-belly toad - -	Bufonidae : Anura
Yunnan firebelly toad - -	Bombinatoridae : Anura
Yunnan pine moth - -	Lasiocampidae : Lepidoptera
Yunnan pond frog - -	Ranidae : Anura