List of mammals of Idaho

This list of mammals of Idaho includes all wild mammal species indigenous to the U.S. state of Idaho. Five mammal species introduced in the state include the eastern gray squirrel, Virginia opossum, house mouse, black rat, and the Norway rat. Mammals included in this list are drawn from the Idaho Department of Fish and Game.

Shrews
Family: Soricidae
 * Masked shrew, Sorex cinereus
 * American pygmy shrew, Sorex hoyi
 * Merriam's shrew, Sorex merriami
 * Montane shrew, Sorex monticolus
 * Dwarf shrew, Sorex nanus
 * American water shrew, Sorex palustris
 * Vagrant shrew, Sorex vagrans

Moles
Family: Talpidae
 * Coast mole, Scapanus orarius

Opossums
Family: Didelphidae
 * Virginia opossum, Didelphis virginiana

Beavers
Family: Castoridae
 * North American beaver, Castor canadensis

Pocket gophers
Family: Geomyidae
 * Idaho pocket gopher, Thomomys idahoensis
 * Northern pocket gopher, Thomomys talpoides
 * Townsend's pocket gopher, Thomomys townsendii

Kangaroo rats and pocket mice
Family: Heteromyidae
 * Chisel-toothed kangaroo rat, Dipodomys microps
 * Ord's kangaroo rat, Dipodomys ordii
 * Little pocket mouse, Perognathus longimembris
 * Great Basin pocket mouse, Perognathus merriami

Porcupines
Family: Erethizontidae
 * North American porcupine, Erethizon dorsatum

Jumping mice
Family: Dipodidae
 * Western jumping mouse, Zapus princeps

New World rats, mice, and voles
Family: Cricetidae
 * Sagebrush vole, Lemmiscus curtatus
 * Long-tailed vole, Microtus longicaudus
 * Montane vole, Microtus montanus
 * Prairie vole, Microtus ochrogaster
 * Meadow vole, Microtus pennsylvanicus
 * Water vole, Microtus richardsoni
 * Southern red-backed vole, Myodes gapperii
 * Bushy-tailed woodrat, Neotoma cinerea
 * Desert woodrat, Neotoma lepida
 * Southern plains woodrat, Neotoma micropus
 * Muskrat, Ondatra zibethicus
 * Northern grasshopper mouse, Onychomys leucogaster
 * Brush mouse, Peromyscus boylii
 * Canyon mouse, Peromyscus crinitus
 * White-footed mouse, Peromyscus leucopus
 * Northern rock mouse, Peromyscus nasutus
 * Western deer mouse, Peromyscus sonoriensis
 * Pinyon mouse, Peromyscus truei
 * Western heather vole, Phenacomys intermedius
 * Western harvest mouse, Reithrodontomys megalotis
 * Northern bog lemming, Synaptomys borealis

Old World rats, mice
Family: Muridae
 * House mouse, Mus musculus introduced
 * Norway rat, Rattus norvegicus introduced
 * Black rat, Rattus rattus introduced

Chipmunks, marmots, squirrels
Family: Sciuridae
 * White-tailed antelope squirrel, Ammospermophilus leucurus
 * Golden-mantled ground squirrel, Callospermophilus lateralis
 * Northern flying squirrel, Glaucomys sabrinus
 * Hoary marmot, Marmota caligata
 * Yellow-bellied marmot, Marmota flaviventris
 * Rock squirrel, Otospermophilus variegatus
 * Yellow-pine chipmunk, Neotamias amoenus
 * Cliff chipmunk, Neotamias dorsalis
 * Least chipmunk, Neotamias minimus
 * Red-tailed chipmunk, Neotamias ruficaudus
 * Hopi chipmunk, Neotamias rufus
 * Uinta chipmunk, Neotamias umbrinus
 * Eastern gray squirrel, Sciurus carolinensis introduced
 * Fox squirrel, Sciurus niger introduced
 * American red squirrel, Tamiasciurus hudsonicus
 * Uinta ground squirrel, Urocitellus armatus
 * Belding's ground squirrel, Urocitellus beldingi
 * Northern Idaho ground squirrel, Urocitellus brunneus
 * Merriam's ground squirrel, Urocitellus canus
 * Columbian ground squirrel, Urocitellus columbianus
 * Wyoming ground squirrel, Urocitellus elegans
 * Southern Idaho ground squirrel, Urocitellus endemicus
 * Piute ground squirrel, Urocitellus mollis

Hares and rabbits
Family: Leporidae
 * Pygmy rabbit, Brachylagus idahodensis
 * Snowshoe hare, Lepus americanus
 * Black-tailed jackrabbit, Lepus californicus
 * White-tailed jackrabbit, Lepus townsendii
 * Mountain cottontail, Sylvilagus nuttallii

Pikas
Family: Ochotonidae
 * American pika, Ochotona princeps

Vesper bats
Family: Vespertilionidae
 * Pallid bat, Antrozous pallidus
 * Townsend's big-eared bat, Corynorhinus townsendii
 * Big brown bat, Eptesicus fuscus
 * Spotted bat, Euderma maculatum
 * Silver-haired bat, Lasionycteris noctivagans
 * Eastern red bat, Lasiurus borealis
 * Hoary bat, Lasiurus cinereus
 * California myotis, Myotis californicus
 * Western small-footed myotis, Myotis ciliolabrum
 * Long-eared myotis, Myotis evotis
 * Little brown bat, Myotis lucifugus
 * Fringed myotis, Myotis thysanodes
 * Long-legged myotis, Myotis volans
 * Yuma myotis, Myotis yumanensis
 * Western pipistrelle, Parastrellus hesperus

Free-tailed bats
Family: Molossidae
 * Big free-tailed bat, Nyctinomops macrotis
 * Mexican free-tailed bat, Tadarida brasiliensis

Cats
Family: Felidae
 * Canada lynx, Lynx canadensis
 * Bobcat, Lynx rufus
 * Cougar, Puma concolor

Canines
Family: Canidae
 * Coyote, Canis latrans
 * Gray wolf, Canis lupus reintroduced
 * Northwestern wolf, C. l. occidentalis reintroduced
 * Gray fox, Urocyon cinereoargenteus
 * Kit fox, Vulpes macrotis
 * Red fox, Vulpes vulpes

Bears
Family: Ursidae
 * American black bear, Ursus americanus
 * Brown bear, Ursus arctos
 * Grizzly bear, U. a. horribilis

Skunks
Family: Mephitidae
 * Striped skunk, Mephitis mephitis
 * Western spotted skunk, Spilogale gracilis

Weasels
Family: Mustelidae
 * Wolverine, Gulo gulo
 * North American river otter, Lontra canadensis
 * Pacific marten, Martes caurina
 * Black-footed ferret, Mustela nigripes extirpated
 * American ermine, Mustela richardsonii
 * Long-tailed weasel, Neogale frenata
 * American mink, Neogale vison
 * Fisher, Pekania pennanti
 * American badger, Taxidea taxus

Raccoons
Family: Procyonidae
 * Ringtail, Bassariscus astutus
 * Raccoon, Procyon lotor

Pronghorns
Family: Antilocapridae
 * Pronghorn, Antilocapra americana

Deer
Family: Cervidae
 * Moose, Alces alces
 * Elk, Cervus canadensis
 * Rocky Mountain elk, C. c. nelsoni
 * Mule deer, Odocoileus hemionus
 * White-tailed deer, Odocoileus virginianus
 * Caribou, Rangifer tarandus extirpated
 * Boreal woodland caribou, R. t. caribou extirpated

Bovids
Family: Bovidae
 * American bison, Bison bison
 * Mountain goat, Oreamnos americanus
 * Bighorn sheep, Ovis canadensis