List of fauna of Utah

This is a list of fauna observed in the U.S. state of Utah.

Arachnids

 * American grass spider (Agelenopsis spp.)
 * American yellow sac spider (Cheiracanthium inclusum)
 * Ant spider (Micaria pasadena)
 * Ant spider (Micaria rossica)
 * Antmimic spider (Meriola decepta )
 * Arizona bark scorpion (Centruroides exilicauda)
 * Banded orb weaving spider (Argiope trifasciata)
 * Bindweed gall mite (Aceria malherbae)
 * Black hairy scorpion (Hadrurus spadix)
 * Bold jumping spider (Phidippus audax)
 * Camel spider (Eremobates spp.)
 * Carolina wolf spider (Hogna carolinensis)
 * Cat-faced spider (Araneus gemmoides)
 * Cellar spiders (Pholcus phalangioides) - also called "daddy long-legs"
 * Clover mite (Bryobia praetiosa)
 * Crab spider (Bassaniana utahensis)
 * Crab spider (Ebo pepinensis)
 * Crab spider (Mecaphesa spp.)
 * Crab spider (Xysticus discursans)
 * Crab spider (Xysticus emertoni)
 * Crab spider (Xysticus pellax )
 * Eastern parson spider (Herpyllus ecclesiasticus)
 * False black widow (Steatoda grossa)
 * Flattened crab spider (Philodromus histrio)
 * Flattened crab spider (Philodromus imbecillus)
 * Flattened crab spider (Philodromus spectabilis)
 * Giant desert hairy scorpion (Hadrurus arizonensis)
 * Ground spider (Cesonia gertschi)
 * Ground spider (Drassodes spp.)
 * Ground spider (Drassyllus lepidus)
 * Ground spider (Gnaphosa sericata)
 * Ground spider (Herpyllus cockerelli)
 * Hobo spider (Tegenaria agrestis)
 * Huntsman spider (Olios giganteus)
 * Jumping spider (Habronattus conjunctus)
 * Jumping spider (Habronattus signatus)
 * Jumping spider (Habronattus tarsalis)
 * Jumping spider (Platycryptus arizonensis)
 * Jumping spider (Salticus peckhamae)
 * Northern scorpion (Paruroctonus boreus)
 * Pseudoscorpion (various)
 * Red spider mite (Tetranychus urticae) - also called "two-spotted spider mite"
 * Rocky Mountain wood tick (Dermacentor andersoni)
 * Sac spider (Phrurotimpus borealis)
 * Salt Lake County brown tarantula (Aphonopelma iodius)
 * Slender crab spider (Tibellus chamberlini)
 * Slender crab spider (Tibellus duttoni)
 * Soft-bodied tick (Ornithodoros spp.) - suspected due to confirmation in all surrounding states, not confirmed in Utah
 * Spinose ear tick (Otobius megnini)
 * Spruce spider mite (Oligonychus ununguis)
 * Striped lynx spider (Oxyopes scalaris)
 * Tomato russet mite (Aculops lycopersici)
 * Utah crevice weaver (Kukulcania utahana)
 * Western black widow spider (Latrodectus hesperus)
 * White-banded crab spider (Misumenoides formosipes)
 * Wolf spider (Hogna spp.)
 * Woodlouse spider (Dysdera crocata)

Crustaceans

 * Brine shrimp (Artemia franciscana)
 * Louisiana crayfish (Procambarus clarkii) - not native and considered invasive
 * Northern crayfish (Orconectes virilis) - not native and considered invasive
 * Pill bug (Armadillidium vulgare) - sometimes called "sow bugs"
 * Pilose crayfish (Pacifastacus gambelii)
 * Signal crayfish (Pacifastacus leniusculus) - confirmed in Utah County
 * Snake River Pilose crayfish (Pacifastacus leniusculus) - likely but not confirmed as of 2009
 * Water flea (Daphnia lumholtzi) - not native and considered invasive

Insects



 * Alkali fly (Ephydra hians)
 * American serpentine leafminer (Liriomyza trifolii)
 * Bank's grass mite (Oligonychus pratensis)
 * Beet leafhopper (Circulifer tenellus)
 * Brine fly (Ephydra cinerea Jones)
 * Brown marmorated stink bug (Halyomorpha halys) - considered invasive
 * Cabbage aphid (Brevicoryne brassicae)
 * Cabbage maggot (Delia radicum)
 * Colorado potato beetle (Leptinotarsa decemlineata)
 * Columbia Basin wireworm (Limonius subauratus)
 * Common earwig (Forficula auricularia) - also called European earwig
 * Coral Pink Sand Dunes tiger beetle (Cicindela albissima)
 * Corn leaf aphid (Rhopalosiphum maidis)
 * Corn sap beetle (Carpophilus dimidiatus)
 * Differential grasshopper (Melanoplus differentialis)
 * Dusky sap beetle (Carpophilus lugubris)
 * Four-spotted sap beetle (Glischrochilus quadrisignatus) - also called picnic beetle
 * Great Basin wireworm (Ctenicera pruinina)
 * Green lacewing (Chrysopa)
 * Green peach aphid (Myzus persicae)
 * Green stink bug (Chinavia hilaris)
 * Ichneumon wasp (Megarhyssa spp.)
 * Jerusalem cricket (Stenopelmatus spp.)
 * Melon aphid (Aphis gossypii)
 * Migratory grasshopper (Melanoplus sanguinipes)
 * Mormon cricket (Anabrus simplex)
 * Northern corn rootworm (Diabrotica barberi)
 * Onion fly (Delia antiqua)
 * Onion thrips (Thrips tabaci)
 * Pacific coast wireworm (Limonius canus)
 * Potato aphid (Macrosiphum euphorbiae)
 * Potato psyllid (Bactericera cockerelli)
 * Red-legged grasshopper (Melanoplus femurrubrum)
 * Seedcorn maggot (Delia platura)
 * Spotted cucumber beetle (Diabrotica undecimpunctata)
 * Striped cucumber beetle (Acalymma trivittatum)
 * Thrips (various)
 * Sugar beet wireworm (Limonius californicus)
 * Two-striped grasshopper (Melanoplus bivittatus)
 * Vegetable leafminer (Liriomyza sativae)
 * Velvet ant (Mutillidae spp.) - these are actually a type of wasp
 * Water boatmen (Corixidae)
 * Western corn rootworm (Diabrotica virgifera)
 * Western field wireworm (Limonius infuscatus)
 * Western honey bee (Apis mellifera)

Butterflies and moths

 * Achemon sphinx moth (Eumorpha achemon)
 * American painted lady butterfly (Vanessa virginiensis)
 * American snout butterfly (Libytheana carinenta)
 * Anise swallowtail butterfly (Papilio zelicaon)
 * Aphrodite fritillary butterfly (Speyeria aphrodite)
 * Arctic fritillary butterfly (Boloria chariclea)
 * Army cutworm (Euxoa auxiliaris)
 * Black cutworm (Agrotis ipsilon)
 * Black swallowtail butterfly (Papilio polyxenes)
 * Bordered patch butterfly (Chlosyne lacinia)
 * Cabbage looper (Trichoplusia ni)
 * California patch butterfly (Chlosyne californica)
 * California sister butterfly (Adelpha californica)
 * California tortoiseshell butterfly (Nymphalis californica)
 * Callippe fritillary butterfly (Speyeria callippe)
 * Clodius parnassian butterfly (Parnassius clodius)
 * Common buckeye butterfly (Junonia coenia)
 * Compton tortoiseshell butterfly (Nymphalis vaualbum)
 * Corn earworm (Helicoverpa zea) - also called the tomato fruitworm
 * Coronis fritillary butterfly (Speyeria coronis)
 * Diamondback moth (Plutella xylostella)
 * Dotted checkerspot butterfly (Poladryas minuta)
 * Edith's checkerspot butterfly (Euphydryas editha)
 * Edward's fritillary butterfly (Speyeria edwardsii)
 * Empress Leilia butterfly (Asterocampa leilia)
 * Fall armyworm (Spodoptera frugiperda)
 * Field crescent butterfly (Phyciodes pulchella)
 * Five-spotted hawkmoth (Manduca quinquemaculata)
 * Freija fritillary butterfly (Boloria freija)
 * Glassy cutworm (Crymodes devastator)
 * Gorgone checkerspot butterfly (Chlosyne gorgone)
 * Gray comma butterfly (Polygonia progne)
 * Great Basin fritillary butterfly (Speyeria egleis)
 * Great spangled fritillary butterfly (Speyeria cybele)
 * Green comma butterfly (Polygonia faunus)
 * Gulf fritillary butterfly (Agraulis vanillae)
 * Hackberry emperor butterfly (Asterocampa celtis)
 * Hoary comma butterfly (Polygonia gracilis)
 * Hydaspe fritillary butterfly (Speyeria hydaspe)
 * Indra swallowtail butterfly (Papilio indra)
 * Leanira checkerspot butterfly (Chlosyne leanira)
 * Lorquin's admiral butterfly (Limenitis lorquini)
 * Milbert's tortoiseshell butterfly (Aglais milberti)
 * Monarch butterfly (Danaus plexippus)
 * Mormon fritillary butterfly (Speyeria mormonia)
 * Mourning cloak butterfly (Nymphalis antiopa)
 * Mylitta crescent butterfly (Phyciodes mylitta)
 * Nokomis fritillary butterfly (Speyeria nokomis)
 * Northern checkerspot butterfly (Chlosyne palla)
 * Northern crescent butterfly (Phyciodes cocyta)
 * Northwestern fritillary butterfly (Speyeria hesperis)
 * Old World swallowtail butterfly (Papilio machaon)
 * Painted lady butterfly (Vanessa cardui)
 * Pale crescent butterfly (Phyciodes pallida)
 * Pale swallowtail butterfly (Papilio eurymedon)
 * Pallid crescentspot butterfly (Phyciodes picta)
 * Pearl crescent butterfly (Phyciodes tharos)
 * Pipevine swallowtail butterfly (Battus philenor)
 * Queen butterfly (Danaus gilippus)
 * Red admiral butterfly (Vanessa atalanta)
 * Red-spotted purple butterfly (Limenitis arthemis astyanax)
 * Relict fritillary butterfly (Boloria kriemhild)
 * Rockslide checkerspot butterfly (Chlosyne whitneyi)
 * Rocky Mountain parnassian butterfly (Parnassius smintheus)
 * Silver-bordered fritillary butterfly (Boloria selene)
 * Small white butterfly (Pieris rapae)
 * Soldier butterfly (Danaus eresimus)
 * Tropical buckeye butterfly (Junonia genoveva)
 * Two-tailed swallowtail butterfly (Papilio multicaudata)
 * Variable checkerspot butterfly (Euphydryas chalcedona)
 * Variegated cutworm (Peridroma saucia)
 * Variegated fritillary butterfly (Euptoieta claudia)
 * Viceroy butterfly (Limenitis archippus)
 * Weidemeyer's admiral butterfly (Limenitis weidemeyerii)
 * West Coast lady butterfly (Vanessa annabella)
 * Western bean cutworm (Striacosta albicosta)
 * Western tiger swallowtail butterfly (Papilio rutulus)
 * White admiral butterfly (Limenitis arthemis)
 * White peacock butterfly (Anartia jatrophae)
 * White-lined sphinx moth (Hyles lineata)
 * Zerene fritillary butterfly (Speyeria zerene)

Mollusks

 * Black gloss (Zonitoides nitidus)
 * California floater (Anodonta californiensis)
 * Desert springsnail (Pyrgulopsis deserta)
 * Fat-whorled pondsnail (Stagnicola bonnevillensis)
 * Fish Lake physa (Physella microstriata)
 * Glass physa (Physa skinneri)
 * Kanab ambersnail (Oxyloma kanabense)
 * Land snail (Nesovitrea electrina)
 * Minute gem (Hawaiia minuscula minuscula)
 * New Zealand mud snail (Potamopyrgus antipodarum) - not native and considered invasive
 * Ovate vertigo (Vertigo ovata)
 * Quagga mussel (Dreissena bugensis) - considered an invasive species, found in Lake Powell and suspected of being in Deer Creek Reservoir
 * Red-rimmed melania (Melanoides tuberculata) - not native and considered invasive
 * Southern tightcoil (Ogaridiscus subrupicola)
 * Striate gem (Hawaiia minuscula neomexicana)
 * Thickshell pondsnail (Stagnicola utahensis)
 * Thin-lip vallonia (Vallonia perspectiva)
 * Utah physa (Physella utahensis)
 * Utah roundmouth snail (Valvata utahensis)
 * Variable vertigo (Vertigo gouldii)
 * Western pearlshell (Margaritifera falcata)
 * Wet rock physa (Physella zionis)
 * Widespread column (or Moss chrysalis snail) (Pupilla muscorum)
 * Winged floater (Anodonta nuttalliana)

Other

 * House centipede (Scutigera coleoptrata)

Amphibians

 * American bullfrog (Rana catesbeiana) - not a native species
 * Arizona toad (Bufo microscaphus)
 * Canyon tree frog (Hyla arenicolor)
 * Columbia spotted frog (Rana luteiventris) - on the Utah Sensitive Species List as a "conservation agreement species"
 * Great Basin spadefoot (Spea intermontana)
 * Great Plains toad (Bufo cognatus)
 * Green frog (Rana clamitans) - not a native species
 * New Mexico spadefoot toad (Spea multiplicata)
 * Northern leopard frog (Rana pipiens)
 * Pacific tree frog (Pseudacris regilla)
 * Plains spadefoot toad (Spea bombifrons)
 * Red-spotted toad (Bufo punctatus)
 * Relict leopard frog (Rana onca) - endangered, possibly extirpated from Utah
 * Tiger salamander (Ambystoma tigrinum) - the only native salamander species in Utah
 * Western chorus frog (Pseudacris triseriata)
 * Western toad (Bufo boreas)
 * Woodhouse's toad (Bufo woodhousii)

Birds



 * Acorn woodpecker (Melanerpes formicivorus)
 * Abert's towhee (Pipilo aberti)
 * American avocet (Recurvirostra americana)
 * American bittern (Botaurus lentiginosus)
 * American cliff swallow (Petrochelidon pyrrhonota)
 * American coot (Fulica americana)
 * American crow (Corvus brachyrhynchos)
 * American dipper (Cinclus mexicanus)
 * American golden plover (Pluvialis dominica)
 * American goldfinch (Carduelis tristis)
 * American kestral (Falco sparverius)
 * American pipit (Anthus rubescens) - also known as the buff-bellied pipit
 * American redstart (Setophaga ruticilla)
 * American robin (Turdus migratorius)
 * American three-toed woodpecker (Picoides dorsalis)
 * American tree sparrow (Spizella arborea)
 * American white pelican (Pelecanus erythrorhynchos)
 * American wigeon (Anas americana)
 * Ash-throated flycatcher (Myiarchus cinerascens)
 * Baird's sandpiper (Calidris bairdii)
 * Bald eagle (Haliaeetus leucocephalus)
 * Band-tailed pigeon (Patagioenas fasciata)
 * Bank swallow (Riparia riparia) - also called sand martin
 * Barn owl (Tyto alba)
 * Barn swallow (Hirundo rustica)
 * Barrow's goldeneye (Bucephala islandica)
 * Bell's vireo (Vireo bellii)
 * Belted kingfisher (Ceryle alcyon)
 * Bendire's thrasher (Toxostoma bendirei)
 * Bewick's wren (Thyromanes bewickii)
 * Black phoebe (Sayornis nigricans)
 * Black rosy finch (Leucosticte atrata)
 * Black swift (Cypseloides niger)
 * Black tern (Chlidonias niger)
 * Black-and-white warbler (Mniotilta varia) - rare, transitory
 * Black-bellied plover (Pluvialis squatarola)
 * Black-billed cuckoo (Coccyzus erythropthalmus)
 * Black-billed magpie (Pica hudsonia)
 * Black-capped chickadee (Poecile atricapillus)
 * Black-chinned hummingbird (Archilochus alexandri)
 * Black-chinned sparrow (Spizella atrogularis)
 * Black-crowned night heron (Nycticorax nycticorax)
 * Black-headed grosbeak (Pheucticus melanocephalus)
 * Black-necked stilt (Himantopus mexicanus)
 * Black-tailed gnatcatcher (Polioptila melanura)
 * Black-throated gray warbler (Dendroica nigrescens)
 * Black-throated sparrow (Amphispiza bilineata)
 * Blackpoll warbler (Dendroica striata) - rare, transitory
 * Blue jay (Cyanocitta cristata) - rare, mainly in winter
 * Blue-gray gnatcatcher (Polioptila caerulea)
 * Blue-winged teal (Anas discors)
 * Bobolink (Dolichonyx oryzivorus)
 * Bohemian waxwing (Bombycilla garrulus)
 * Bonaparte's gull (Larus philadelphia)
 * Boreal owl (Aegolius funereus)
 * Brewer's blackbird (Euphagus cyanocephalus)
 * Brewer's sparrow (Spizella breweri breweri)
 * Broad-tailed hummingbird (Selasphorus platycercus)
 * Broad-winged hawk (Buteo platypterus) - uncommon, mostly transitory
 * Brown creeper (Certhia americana)
 * Brown thrasher (Toxostoma rufum)
 * Brown-crested flycatcher (Myiarchus tyrannulus) - rare, transitory
 * Brown-headed cowbird (Molothrus ater)
 * Bufflehead (Bucephala albeola)
 * Bullock's oriole (Icterus bullockii)
 * Burrowing owl (Athene cunicularia)
 * Bushtit (Psaltriparus minimus)
 * Cackling goose (Branta hutchinsii)
 * Cactus wren (Campylorhynchus brunneicapillus)
 * California condor (Gymnogyps californianus) - endangered
 * California gull (Larus californicus) - often called seagull
 * California quail (Callipepla californica)
 * Calliope hummingbird (Selasphorus calliope) - formerly Stellula calliope
 * Canada goose (Branta canadensis)
 * Canvasback (Aythya valisineria)
 * Canyon wren (Catherpes mexicanus)
 * Caspian tern (Sterna caspia)
 * Cassin's finch (Carpodacus cassinii)
 * Cassin's kingbird (Tyrannus vociferans)
 * Cassin's vireo (Vireo cassinii)
 * Cedar waxwing (Bombycilla cedrorum)
 * Chipping sparrow (Spizella passerina)
 * Chukar partridge (Alectoris chukar)
 * Cinnamon teal (Anas cyanoptera)
 * Clark's grebe (Aechmophorus clarki)
 * Clark's nutcracker (Nucifraga columbiana)
 * Common black hawk (Buteogallus anthracinus)
 * Common goldeneye (Bucephala clangula)
 * Common grackle (Quiscalus qusicula)
 * Common loon (Gavia immer)
 * Common merganser (Mergus merganser)
 * Common moorhen (Gallinula chloropus)
 * Common nighthawk (Chordeiles minor)
 * Common poorwill (Phalaenoptilus nuttallii)
 * Common raven (Corvus corax)
 * Common redpoll (Carduelis flammea)
 * Common tern (Sterna hirundo)
 * Dusky grouse (Dendragapus obscurus) - sometimes called blue grouse
 * Long-billed dowitcher (Limnodromus scolopaceus)
 * Marbled godwit (Limosa fedoa)
 * Red-necked phalarope (Phalaropus lobatus)
 * Snowy plover (Charadrius nivosus)
 * Western cattle egret (Bubulcus ibis)
 * Western sandpiper (Calidris mauri)
 * Wilson's phalarope (Phalaropus tricolor)
 * Wood duck (Aix sponsa)

Fishes

 * Arctic grayling (Thymallus arcticus) - introduced fish, not native to Utah
 * Bear Lake sculpin (Cottus extensus) - listed as "vulnerable", found only in Bear Lake
 * Bear Lake whitefish (Prosopium abyssicola) - found only in Bear Lake
 * Black bullhead (Ameiurus melas)
 * Black crappie (Pomoxis nigromaculatus)
 * Bluegill (Lepomis macrochirus) - introduced fish, not native to Utah
 * Bluehead sucker (Catostomus discobolus) - on the Utah Sensitive Species List
 * Bonneville cisco (Prosopium gemmifer) - found only in Bear Lake
 * Bonneville cutthroat trout (Oncorhynchus clarkii utah)
 * Bonneville whitefish (Prosopium spilonotus) - found only in Bear Lake
 * Bonytail chub (Gila elegans) - Federally listed as critically endangered
 * Brassy minnow (Hybognathus hankinsoni) - introduced fish, not native to Utah
 * Brook stickleback (Culaea inconstans) - introduced fish, not native to Utah
 * Brook trout (Salvelinus fontinalis) - introduced fish, not native to Utah
 * Brown trout (Salmo trutta) - introduced fish, not native to Utah
 * Burbot (Lota lota) - illegally introduced fish, not native to Utah
 * Channel catfish (Ictalurus punctatus) - introduced fish, not native to Utah
 * Colorado pikeminnow (Ptychocheilus lucius) - Federally listed as vulnerable
 * Colorado River cutthroat trout (Oncorhynchus clarkii pleuriticus)
 * Common carp (Cyprinus carpio) - introduced, invasive fish, not native to Utah
 * Cutthroat trout (Oncorhynchus clarkii)
 * June sucker (Chasmistes liorus)
 * Least chub (Iotichthys phlegethontis)
 * Utah Lake sculpin (Cottus echinatus) - extinct, last observed in the 1920s

Mammals

 * Abert's squirrel (Sciurus aberti)
 * Allen's big-eared bat (Idionycteris phyllotis)
 * American badger (Taxidea taxus)
 * American bison (Bos bison or Bison bison)
 * American black bear (Ursus americanus)
 * American ermine (Mustela richardsonii)
 * American marten (Martes americana)
 * American mink (Neogale vison)
 * American pika (Ochotona princeps)
 * American red squirrel (Tamiasciurus hudsonicus)
 * American water shrew (Sorex palustris)
 * Arizona woodrat (Neotoma devia)
 * Belding's ground squirrel (Spermophilus beldingi or Urocitellus beldingi)
 * Big brown bat (Eptesicus fuscus)
 * Big free-tailed bat (Nyctinomops macrotis)
 * Black rat (Rattus rattus)
 * Black-footed ferret (Mustela nigripes)
 * Black-tailed jackrabbit (Lepus californicus)
 * Bobcat (Lynx rufus)
 * Botta's pocket gopher (Thomomys bottae)
 * Brown bear (Ursus arctos) – extirpated
 * Brown rat (Rattus norvegicus)
 * Brush mouse (Peromyscus boylii)
 * Bushy-tailed woodrat (Neotoma cinerea)
 * Cactus mouse (Peromyscus eremicus)
 * California bighorn sheep (Ovis canadensis californiana)
 * California myotis (Myotis californicus)
 * Canada lynx (Lynx canadensis)
 * Canyon mouse (Peromyscus crinitus)
 * Chisel-toothed kangaroo rat (Dipodomys microps)
 * Cinereus shrew (Sorex cinereus)
 * Cliff chipmunk (Tamias dorsalis or Neotamias dorsalis)
 * Cougar (Puma concolor)
 * Coyote (Canis latrans)
 * Crawford's gray shrew (Notiosorex crawfordi)
 * Dark kangaroo mouse (Microdipodops megacephalus)
 * Desert bighorn sheep (Ovis canadensis nelsoni)
 * Desert cottontail (Sylvilagus audubonii)
 * Desert kangaroo rat (Dipodomys deserti)
 * Desert pocket mouse (Chaetodipus penicillatus)
 * Desert woodrat (Neotoma lepida)
 * Dwarf shrew (Sorex nanus)
 * Elk/Wapati (Cervus canadensis)
 * Fringed myotis (Myotis thysanodes)
 * Golden-mantled ground squirrel (Callospermophilus lateralis)
 * Gray fox (Urocyon cinereoargenteus)
 * Gray wolf (Canis lupus) – no confirmed mating pairs living in Utah, though there having been sitings in northeastern Utah along the Wyoming border
 * Great Basin pocket mouse (Perognathus parvus)
 * Hoary bat (Lasiurus cinereus)
 * House mouse (Mus musculus)
 * Kit fox (Vulpes macrotis)
 * Least chipmunk (Tamias minimus)
 * Little brown bat (Myotis lucifugus)
 * Long-eared myotis (Myotis evotis)
 * Long-legged myotis (Myotis volans)
 * Long-tailed vole (Microtus longicaudus)
 * Long-tailed weasel (Neogale frenata)
 * Meadow vole (Microtus pennsylvanicus)
 * Mexican free-tailed bat (Tadarida brasiliensis)
 * Montane shrew (Sorex monticolus)
 * Montane vole (Microtus montanus)
 * Moose (Alces alces)
 * Mountain cottontail (Sylvilagus nuttallii)
 * Mountain goat (Oreamnos americanus)
 * Mule deer (Odocoileus hemionus)
 * Muskrat (Ondatra zibethicus)
 * North American beaver (Castor canadensis)
 * North American deer mouse (Peromyscus maniculatus)
 * North American porcupine (Erethizon dorsatum)
 * North American river otter (Lontra canadensis)
 * Northern flying squirrel (Glaucomys sabrinus)
 * Northern grasshopper mouse (Onychomys leucogaster)
 * Northern pocket gopher (Thomomys talpoides)
 * Ord's kangaroo rat (Dipodomys ordii)
 * Pinyon mouse (Peromyscus truei)
 * Piute ground squirrel (Urocitellus mollis)
 * Pronghorn (Antilocapra americana)
 * Raccoon (Procyon lotor)
 * Red deer (Cervus elaphus)
 * Red fox (Vulpes vulpes)
 * Ring-tailed cat (Bassariscus astutus)
 * Rock squirrel (Otospermophilus variegatus)
 * Rocky Mountain bighorn sheep (Ovis canadensis canadensis)
 * Silver-haired bat (Lasionycteris noctivagans)
 * Snowshoe hare (Lepus americanus)
 * Southern red-backed vole (Clethrionomys gapperi)
 * Spotted bat (Euderma maculatum)
 * Striped skunk (Mephitis mephitis)
 * Townsend's big-eared bat (Corynorhinus townsendii)
 * Uinta chipmunk (Tamias umbrinus)
 * Uinta ground squirrel (Urocitellus armatus)
 * Vagrant shrew (Sorex vagrans)
 * Water vole (Microtus richardsoni)
 * Western harvest mouse (Reithrodontomys megalotis)
 * Western heather vole (Phenacomys intermedius)
 * Western jumping mouse (Zapus princeps)
 * Western small-footed bat (Myotis ciliolabrum)
 * Western spotted skunk (Spilogale gracilis)
 * White-tailed antelope squirrel (Ammospermophilus leucurus)
 * White-tailed deer (Odocoileus virginianus)
 * White-tailed jackrabbit (Lepus townsendii)
 * Wolverine (Gulo gulo)
 * Yellow-bellied marmot (Marmota flaviventris)

Reptiles



 * Blackneck garter snake (Thamnophis cyrtopsis)
 * Coachwhip (Masticophis flagellum)
 * Common chuckwalla (Sauromalus ater)
 * Common kingsnake (Lampropeltis getula)
 * Common side-blotched lizard (Uta stansburiana)
 * Corn snake (Pantherophis guttatus or Elaphe guttata)
 * Desert horned lizard / "horny toad" (Phrynosoma platyrhinos)
 * Desert iguana (Dipsosaurus dorsalis)
 * Desert night lizard (Xantusia vigilis)
 * Desert spiny lizard (Sceloporus magister)
 * Desert tortoise / "Mojave desert tortoise" (Gopherus agassizii)
 * Eastern collared lizard (Crotaphytus collaris)
 * Eastern fence lizard (Sceloporus undulatus)
 * Eastern racer (Coluber constrictor)
 * Gila monster (Heloderma suspectum)
 * Glossy snake
 * A. e. eburnata
 * A. e. philipi
 * Gopher snake (Pituophis catenifer)
 * P. c. deserticola
 * P. c. sayi ("bullsnake")
 * Great Basin collared lizard (Crotaphytus bicinctores)
 * Great Basin rattlesnake (Crotalus oreganus lutosus or Crotalus lutosus)
 * Greater short-horned lizard / "Horny toad" (Phrynosoma hernandesi)
 * Hopi rattlesnake (Crotalus viridis nuntius)
 * Lesser earless lizard (Holbrookia maculata)
 * Long-nosed leopard lizard (Gambelia wislizenii)
 * Long-nosed snake (Rhinocheilus lecontei)
 * Many-lined skink (Plestiodon multivirgatus)
 * Midget faded rattlesnake (Crotalus oreganus concolor)
 * Milk snake (Lampropeltis triangulum)
 * Mojave rattlesnake (Crotalus scutulatus)
 * New Mexico whiptail (Aspidoscelis neomexicanus)
 * Night snake (Hypsiglena torquata)
 * Ornate tree lizard (Urosaurus ornatus)
 * Painted turtle (Chrysemys picta)
 * Plateau striped whiptail (Aspidoscelis velox)
 * Prairie rattlesnake (Crotalus viridis viridis)
 * Ring-necked snake (Diadophis punctatus)
 * Rubber boa (Charina bottae)
 * Sagebrush lizard (Sceloporus graciosus)
 * Sidewinder (Crotalus cerastes)
 * Smith's black-headed snake (Tantilla hobartsmithi)
 * Smooth green snake (Opheodrys vernalis)
 * Snapping turtle (Chelydra serpentina) – not native, confirmed near St. George
 * Sonoran mountain kingsnake (Lampropeltis pyromelana)
 * Speckled rattlesnake (Crotalus mitchellii)
 * Spiny softshell turtle (Apalone spinifera)
 * Spotted leaf-nosed snake (Phyllorhynchus decurtatus)
 * Striped whipsnake (Masticophis taeniatus)
 * Valley garter snake (Thamnophis sirtalis fitchi)
 * Western banded gecko (Coleonyx variegatus)
 * Western fence lizard (Sceloporus occidentalis)
 * Western ground snake (Sonora semiannulata)
 * Western lyre snake (Trimorphodon biscutatus)
 * Western patch-nosed snake (Salvadora hexalepis)
 * Western skink (Eumeces skiltonianus or Plestiodon skiltonianus)
 * Western terrestrial garter snake (Thamnophis elegans)
 * Western threadsnake (Leptotyphlops humilis or Rena humilis)
 * Western whiptail (Aspidoscelis tigris)
 * Zebra-tailed lizard (Callisaurus draconoides)