List of mammals of the United States

Didelphimorphia is the order of common opossums of the Western Hemisphere. Opossums probably diverged from the basic South American marsupials in the late Cretaceous or early Paleocene.They are small to medium-sized marsupials, about the size of a large house cat, with a long snout and prehensile tail.

Family: Didelphidae (American opossums)

Subfamily: Didelphinae

Virginia opossum Didelphis virginiana LC

The armadillos are small mammals with a bony armored shell. They are native to the Americas. There are around 20 extant species. Only the nine-banded armadillo is found in the United States.

Family: Dasypodidae (armadillos)

Subfamily: Dasypodinae

Nine-banded armadillo Dasypus novemcinctus LC

Rodents make up the largest order of mammals, with over 40 percent of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be keep short by gnawing. Most rodents are small though the capybara can weigh up to 45 kg (100 lb).

Suborder: Hystricognathi

Family: Erethizontidae (New World porcupines)

Subfamily: Erethizontinae

North American porcupine Erethizon dorsatum LC

Suborder: Sciurognathi

Family: Aplodontidae (mountain beaver)

Mountain beaver Aplodontia rufa LC (ssp. nigra: E)

Family: Castoridae (beavers)

American beaver Castor canadensis LC

Family: Sciuridae (squirrels)

Subfamily: Sciurinae

Tribe: Sciurini

Abert's squirrel Sciurus aberti LC

Arizona gray squirrel Sciurus arizonensis DD

Eastern gray squirrel Sciurus carolinensis LC

Western gray squirrel Sciurus griseus LC

Mexican fox squirrel Sciurus nayaritensis LC

Fox squirrel Sciurus niger LC
(Delmarva fox squirrel S. n. cinereus: E)

Douglas squirrel Tamiasciurus douglasii LC

American red squirrel Tamiasciurus hudsonicus LC
(Mount Graham red squirrel T. h. grahamensis: E)

Tribe: Pteromyini

Northern flying squirrel Glaucomys sabrinus LC
(Carolina northern flying squirrel G. s. coloratus and Virginia northern flying squirrel G. s. fuscus: E)

Southern flying squirrel Glaucomys volans LC

Subfamily: Xerinae

Tribe: Marmotini

Harris's antelope squirrel Ammospermophilus harrisii LC

Texas antelope squirrel Ammospermophilus interpres LC

White-tailed antelope squirrel Ammospermophilus leucurus LC

San Joaquin antelope squirrel Ammospermophilus nelsoni EN

Gunnison's prairie dog Cynomys gunnisoni LC

White-tailed prairie dog Cynomys leucurus LC

Black-tailed prairie dog Cynomys ludovicianus LC

Utah prairie dog Cynomys parvidens EN T

Alaska marmot Marmota broweri (Alaska only) LC

Hoary marmot Marmota caligata LC

Yellow-bellied marmot Marmota flaviventris LC

Groundhog Marmota monax LC

Olympic marmot Marmota olympus LC

California ground squirrel Otospermophilus beecheyi LC

Rock squirrel Otospermophilus variegatus LC

Golden-mantled ground squirrel Callospermophilus lateralis LC

Cascade golden-mantled ground squirrel Callospermophilus saturatus LC

Mohave ground squirrel Xerospermophilus mohavensis VU

Spotted ground squirrel Xerospermophilus spilosoma LC

Round-tailed ground squirrel Xerospermophilus tereticaudus LC

Franklin's ground squirrel Poliocitellus franklinii LC

Mexican ground squirrel Ictidomys mexicanus LC

Thirteen-lined ground squirrel Ictidomys tridecemlineatus LC

Uinta ground squirrel Urocitellus armatus LC

Belding's ground squirrel Urocitellus beldingi LC

Idaho ground squirrel Urocitellus brunneus EN
(Northern Idaho ground squirrel U. b. brunneus: T)

Merriam's ground squirrel Urocitellus canus LC

Columbian ground squirrel Urocitellus columbianus LC

Wyoming ground squirrel Urocitellus elegans LC

Piute ground squirrel Urocitellus mollis LC

Arctic ground squirrel Urocitellus parryii (Alaska only) LC

Richardson's ground squirrel Urocitellus richardsonii LC

Townsend's ground squirrel Urocitellus townsendii VU

Washington ground squirrel Urocitellus washingtoni NT

Alpine chipmunk Tamias alpinus LC

Yellow-pine chipmunk Tamias amoenus LC

Gray-footed chipmunk Tamias canipes LC

Gray-collared chipmunk Tamias cinereicollis LC

Cliff chipmunk Tamias dorsalis LC

Merriam's chipmunk Tamias merriami LC

Least chipmunk Tamias minimus LC

California chipmunk Tamias obscurus LC

Yellow-cheeked chipmunk Tamias ochrogenys LC

Palmer's chipmunk Tamias palmeri EN

Panamint chipmunk Tamias panamintinus LC

Long-eared chipmunk Tamias quadrimaculatus LC

Colorado chipmunk Tamias quadrivittatus LC

Red-tailed chipmunk Tamias ruficaudus LC

Hopi chipmunk Tamias rufus LC

Allen's chipmunk Tamias senex LC

Siskiyou chipmunk Tamias siskiyou LC

Sonoma chipmunk Tamias sonomae LC

Lodgepole chipmunk Tamias speciosus LC

Eastern chipmunk Tamias striatus LC

Townsend's chipmunk Tamias townsendii LC

Uinta chipmunk Tamias umbrinus LC

Family: Geomyidae

Desert pocket gopher Geomys arenarius NT

Attwater's pocket gopher Geomys attwateri LC

Baird's pocket gopher Geomys breviceps LC

Plains pocket gopher Geomys bursarius LC

Knox Jones's pocket gopher Geomys knoxjonesi LC

Texas pocket gopher Geomys personatus LC

Southeastern pocket gopher Geomys pinetis LC

Llano pocket gopher Geomys texensis LC

Yellow-faced pocket gopher Pappogeomys castanops LC

Botta's pocket gopher Thomomys bottae LC

Camas pocket gopher Thomomys bulbivorus LC

Wyoming pocket gopher Thomomys clusius LC

Idaho pocket gopher Thomomys idahoensis LC

Mazama pocket gopher Thomomys mazama LC

Mountain pocket gopher Thomomys monticola LC

Northern pocket gopher Thomomys talpoides LC

Townsend's pocket gopher Thomomys townsendii LC

Southern pocket gopher Thomomys umbrinus LC

Family: Heteromyidae

Subfamily: Dipodomyinae

Agile kangaroo rat Dipodomys agilis LC

California kangaroo rat Dipodomys californicus LC

Gulf Coast kangaroo rat Dipodomys compactus LC

Desert kangaroo rat Dipodomys deserti LC

Texas kangaroo rat Dipodomys elator VU

Heermann's kangaroo rat Dipodomys heermanni LC
(Morro Bay kangaroo rat D. h. morroensis: E)

Giant kangaroo rat Dipodomys ingens EN E

Merriam's kangaroo rat Dipodomys merriami LC (San Bernardino kangaroo rat D. m. parvus: E)

Chisel-toothed kangaroo rat Dipodomys microps LC

Fresno kangaroo rat Dipodomys nitratoides VU (Fresno subspecies D. n. exilis and Tipton kangaroo rat D. n. nitratoides: E)

Ord's kangaroo rat Dipodomys ordii LC

Panamint kangaroo rat Dipodomys panamintinus LC

Banner-tailed kangaroo rat Dipodomys spectabilis NT

Stephens' kangaroo rat Dipodomys stephensi EN E

Dulzura kangaroo rat Dipodomys simulans LC

Narrow-faced kangaroo rat Dipodomys venustus LC

Big-eared kangaroo rat Dipodomys (venustus) elephantinus
(D. venustus: LC)

Dark kangaroo mouse Microdipodops megacephalus LC

Pale kangaroo mouse Microdipodops pallidus LC

Subfamily: Heteromyinae

Mexican spiny pocket mouse Liomys irroratus LC

Subfamily: Perognathinae

Bailey's pocket mouse Chaetodipus baileyi LC

California pocket mouse Chaetodipus californicus LC

Chihuahuan pocket mouse Chaetodipus eremicus LC

San Diego pocket mouse Chaetodipus fallax LC

Long-tailed pocket mouse Chaetodipus formosus LC

Hispid pocket mouse Chaetodipus hispidus LC

Rock pocket mouse Chaetodipus intermedius LC

Nelson's pocket mouse Chaetodipus nelsoni LC

Desert pocket mouse Chaetodipus penicillatus LC

Baja pocket mouse Chaetodipus rudinoris LC

Spiny pocket mouse Chaetodipus spinatus LC

White-eared pocket mouse Perognathus alticola EN

Arizona pocket mouse Perognathus amplus LC

Olive-backed pocket mouse Perognathus fasciatus LC

Plains pocket mouse Perognathus flavescens LC

Silky pocket mouse Perognathus flavus LC

San Joaquin pocket mouse Perognathus inornatus LC

Little pocket mouse Perognathus longimembris LC
(Pacific pocket mouse P. l. pacificus: E)

Merriam's pocket mouse Perognathus merriami LC

Great Basin pocket mouse Perognathus parvus LC

Family: Dipodidae (jerboas)

Subfamily: Zapodinae

Woodland jumping mouse Napaeozapus insignis LC

Meadow jumping mouse Zapus hudsonius LC
(Preble's meadow jumping mouse Z. h. preblei: T)

Western jumping mouse Zapus princeps LC

Pacific jumping mouse Zapus trinotatus LC

Family: Cricetidae

Subfamily: Arvicolinae

White-footed vole Arborimus albipes LC

Red tree vole Arborimus longicaudus NT

California red tree mouse Arborimus pomo NT

Western red-backed vole Clethrionomys californicus LC

Southern red-backed vole Clethrionomys gapperi LC

Northern red-backed vole Clethrionomys rutilus (Alaska only) LC

Northern collared lemming Dicrostonyx groenlandicus (Alaska only) LC

Nelson's collared lemming Dicrostonyx nelsoni (Alaska only) LC

Unalaska collared lemming Dicrostonyx unalascensis (Alaska only) DD

Sagebrush vole Lemmiscus curtatus LC

North American brown lemming Lemmus trimucronatus (Alaska only) LC

Insular vole Microtus abbreviatus (Alaska only) LC

Beach vole Microtus breweri VU

California vole Microtus californicus LC (ssp. scirpen: E)

Gray-tailed vole Microtus canicaudus LC

Rock vole Microtus chrotorrhinus LC

Long-tailed vole Microtus longicaudus LC

Mexican vole Microtus mexicanus LC
(including M. mogollonensis: LC, ssp. hualpaiensis: E))

Mogollon vole Microtus mogollonensis
(sometimes split from M. mexicanus) (M. mexicanus: LC)

Singing vole Microtus miurus (Alaska only) LC

Montane vole Microtus montanus LC

Prairie vole Microtus ochrogaster LC

Tundra vole Microtus oeconomus (Alaska only) LC

Creeping vole Microtus oregoni LC

Meadow vole Microtus pennsylvanicus LC (Florida salt marsh vole M. p. dukecampbelli: E)

Woodland vole Microtus pinetorum LC

Water vole Microtus richardsoni LC

Townsend's vole Microtus townsendii LC

Taiga vole Microtus xanthognathus (Alaska only) LC

Round-tailed muskrat Neofiber alleni LC

Muskrat Ondatra zibethicus LC

Western heather vole Phenacomys intermedius LC

Eastern heather vole Phenacomys ungava LC

Northern bog lemming Synaptomys borealis LC

Southern bog lemming Synaptomys cooperi LC

Subfamily: Neotominae

Northern pygmy mouse Baiomys taylori LC

White-throated woodrat Neotoma albigula LC

Bushy-tailed woodrat Neotoma cinerea LC

Arizona woodrat Neotoma devia LC

Eastern woodrat Neotoma floridana LC (Key Largo woodrat N. f. smalli: E)

Dusky-footed woodrat Neotoma fuscipes LC (ssp. riparia: E)

Desert woodrat Neotoma lepida LC

White-toothed woodrat Neotoma leucodon LC

Big-eared woodrat Neotoma macrotis LC

Allegheny woodrat Neotoma magister NT

Mexican woodrat Neotoma mexicana LC

Southern plains woodrat Neotoma micropus LC

Stephen's woodrat Neotoma stephensi LC

Golden mouse Ochrotomys nuttalli LC

Texas mouse Peromyscus attwateri LC

Brush mouse Peromyscus boylii LC

California mouse Peromyscus californicus LC

Canyon mouse Peromyscus crinitus LC

Cactus mouse Peromyscus eremicus LC

Northern Baja deermouse Peromyscus fraterculus LC (formerly in Peromyscus eremicus)

Cotton mouse Peromyscus gossypinus LC (ssp. allapaticola: E)

Osgood's mouse Peromyscus gratus LC

Northwestern deer mouse Peromyscus keeni LC

White-footed mouse Peromyscus leucopus LC

Deer mouse Peromyscus maniculatus LC

Black-eared mouse Peromyscus melanotis LC

Mesquite mouse Peromyscus merriami LC

Northern rock mouse Peromyscus nasutus LC

White-ankled mouse Peromyscus pectoralis LC

Oldfield mouse Peromyscus polionotus LC (Choctawatchee beach mouse P. p. allophrys, Perdido Key beach mouse P. p. trissyllepsis, St. Andrews beach mouse P. p. peninsularis, Alabama beach mouse P. p. ammobates and Anastasia Island beach mouse P. p. phasma: E, Southeastern beach mouse P. p. niveiventris: T)

Pinyon mouse Peromyscus truei LC

Florida mouse Podomys floridanus VU

Fulvous harvest mouse Reithrodontomys fulvescens LC

Eastern harvest mouse Reithrodontomys humulis LC

Western harvest mouse Reithrodontomys megalotis LC

Plains harvest mouse Reithrodontomys montanus LC

Salt marsh harvest mouse Reithrodontomys raviventris EN E

Subfamily: Sigmodontinae

Chihuahuan grasshopper mouse Onychomys arenicola LC

Northern grasshopper mouse Onychomys leucogaster LC

Southern grasshopper mouse Onychomys torridus LC

Coues' rice rat Oryzomys couesi LC

Marsh rice rat Oryzomys palustris LC (ssp. natator: E)

Arizona cotton rat Sigmodon arizonae LC

Tawny-bellied cotton rat Sigmodon fulviventer LC

Hispid cotton rat Sigmodon hispidus LC

Yellow-nosed cotton rat Sigmodon ochrognathus LC

The lagomorphs comprise two families, Leporidae (hares and rabbits), and Ochotonidae (pikas). Though they can resemble rodents, and were classified as a superfamily in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two.

Family: Ochotonidae (pikas)

Collared pika Ochotona collaris (Alaska only) LC

American pika Ochotona princeps LC

Family: Leporidae (rabbits, hares)

Pygmy rabbit Brachylagus idahoensis LC E

Swamp rabbit Sylvilagus aquaticus LC

Desert cottontail Sylvilagus audubonii LC

Brush rabbit Sylvilagus bachmani LC (ssp. riparius: E)

Manzano mountain cottontail Sylvilagus cognatus DD (formerly in Sylvilagus floridanus)

Eastern cottontail Sylvilagus floridanus LC

Mountain cottontail Sylvilagus nuttallii LC

Appalachian cottontail Sylvilagus obscurus NT

Marsh rabbit Sylvilagus palustris LC (Lower Keys marsh rabbit S. p. hefneri: E)

Robust cottontail Sylvilagus robustus EN

New England cottontail Sylvilagus transitionalis VU

Antelope jackrabbit Lepus alleni LC

Snowshoe hare Lepus americanus LC

Black-tailed jackrabbit Lepus californicus LC

White-sided jackrabbit Lepus callotis NT

Alaskan hare Lepus othus (Alaska only) LC

White-tailed jackrabbit Lepus townsendii LC

Eulipotyphlans are insectivorous mammals. Shrews and solenodons closely resemble mice, hedgehogs carry spines, while moles are stout-bodied burrowers.

Family: Soricidae (shrews)

Subfamily: Soricinae

Tribe: Blarinini

Northern short-tailed shrew Blarina brevicauda LC

Southern short-tailed shrew Blarina carolinensis LC

Everglades short-tailed shrew Blarina peninsulae (B. carolinensis LC)

Elliot's short-tailed shrew Blarina hylophaga LC

North American least shrew Cryptotis parva LC

Tribe: Notiosoricini

Cockrum's gray shrew Notiosorex cockrumi LC

Crawford's gray shrew Notiosorex crawfordi LC

Tribe: Soricini

Glacier Bay water shrew Sorex alaskanus (Alaska only) DD

Arctic shrew Sorex arcticus LC

Arizona shrew Sorex arizonae LC

Baird's shrew Sorex bairdi LC

Marsh shrew Sorex bendirii LC

Cinereus shrew Sorex cinereus LC

Maryland shrew Sorex cinereus fontinalis

Long-tailed shrew Sorex dispar LC

Smoky shrew Sorex fumeus LC

Prairie shrew Sorex haydeni LC

American pygmy shrew Sorex hoyi LC

Pribilof Island shrew Sorex pribilofensis (Alaska only) EN

Saint Lawrence Island shrew Sorex jacksoni (Alaska only) LC

Southeastern shrew Sorex longirostris LC

Mount Lyell shrew Sorex lyelli LC

Merriam's shrew Sorex merriami LC

Montane shrew Sorex monticolus LC

Dwarf shrew Sorex nanus LC

New Mexico shrew Sorex neomexicanus DD

Ornate shrew Sorex ornatus LC (ssp. relictus: E)

Pacific shrew Sorex pacificus LC

American water shrew Sorex palustris LC

Preble's shrew Sorex preblei LC

Olympic shrew Sorex rohweri LC (formerly in Sorex cinereus)

Fog shrew Sorex sonomae LC

Inyo shrew Sorex tenellus LC

Trowbridge's shrew Sorex trowbridgii LC

Tundra shrew Sorex tundrensis (Alaska only) LC

Barren ground shrew Sorex ugyunak (Alaska only) LC

Vagrant shrew Sorex vagrans LC

Alaska tiny shrew Sorex yukonicus (Alaska only) LC

Family: Talpidae (moles)

Subfamily: Scalopinae

Tribe: Condylurini

Star-nosed mole Condylura cristata LC

Tribe: Scalopini

Hairy-tailed mole Parascalops breweri LC

Eastern mole Scalopus aquaticus LC

Broad-footed mole Scapanus latimanus LC

Coast mole Scapanus orarius LC

Townsend's mole Scapanus townsendii LC

Subfamily: Talpinae

Tribe: Neurotrichini

Shrew-mole Neurotrichus gibbsii LC

Order: Chiroptera (bats)

The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals in the world naturally capable of flight. Bat species account for about 20% of all mammals.

Family: Vespertilionidae

Subfamily: Myotinae

Silver-haired bat Lasionycteris noctivagans LC

Southwestern myotis Myotis auriculus LC

Southeastern myotis Myotis austroriparius LC

California myotis Myotis californicus LC

Western small-footed myotis Myotis ciliolabrum LC

Long-eared myotis Myotis evotis LC

Gray bat Myotis grisescens NT E

Keen's myotis Myotis keenii LC

Eastern small-footed myotis Myotis leibii LC

Little brown bat Myotis lucifugus LC

Dark-nosed small-footed myotis Myotis melanorhinus LC

Arizona myotis Myotis occultus LC

Northern long-eared myotis Myotis septentrionalis LC

Indiana bat Myotis sodalis EN E

Fringed myotis Myotis thysanodes LC

Cave myotis Myotis velifer LC

Long-legged myotis Myotis volans LC

Yuma myotis Myotis yumanensis LC

Subfamily: Vespertilioninae

Pallid bat Antrozous pallidus LC

Big brown bat Eptesicus fuscus LC

Spotted bat Euderma maculatum LC

Allen's big-eared bat Idionycteris phyllotis LC

Western red bat Lasiurus blossevillii LC

Eastern red bat Lasiurus borealis LC

Hoary bat Lasiurus cinereus LC (Hawaiian hoary bat L. c. semotus: E)

Southern yellow bat Lasiurus ega LC

Northern yellow bat Lasiurus intermedius LC

Seminole bat Lasiurus seminolus LC

Western yellow bat Lasiurus xanthinus LC

Evening bat Nycticeius humeralis LC

Western pipistrelle Pipistrellus hesperus LC

Eastern pipistrelle Pipistrellus subflavus LC

Rafinesque's big-eared bat Plecotus rafinesquii LC

Townsend's big-eared bat Plecotus townsendii LC
(ssp. virginianus and ingens: E)

Family: Molossidae

Wagner's bonneted bat Eumops glaucinus LC

Florida bonneted bat Eumops floridanus CR E (formerly in Eumops glaucinus)

Western mastiff bat Eumops perotis LC

Underwood's bonneted bat Eumops underwoodi LC

Velvety free-tailed bat Molossus molossus LC

Pocketed free-tailed bat Nyctinomops femorosaccus LC

Big free-tailed bat Nyctinomops macrotis LC

Mexican free-tailed bat Tadarida brasiliensis LC

Family: Mormoopidae

Ghost-faced bat Mormoops megalophylla LC

Family: Phyllostomidae

Subfamily: Phyllostominae

California leaf-nosed bat Macrotus californicus LC

Subfamily: Glossophaginae

Mexican long-tongued bat Choeronycteris mexicana NT

Lesser long-nosed bat Leptonycteris yerbabuenae VU (Leptonycteris curasoae yerbabuenae: E)

Greater long-nosed bat Leptonycteris nivalis EN E

Subfamily: Stenodermatinae

Velvety fruit-eating bat Enchisthenes hartii LC

Subfamily: Desmodontinae

Hairy-legged vampire bat Diphylla ecaudata LC

There are over 260 species of carnivorans, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition.

Suborder: Feliformia

Family: Felidae (cats)

Ocelot Leopardus pardalis LC E

Margay Leopardus wiedii (Ex) NT

Canadian lynx Lynx canadensis LC T

Bobcat Lynx rufus LC

Cougar Puma concolor LC T(S/A)
(except coryi, ssp. couguar and coryi: E)

Jaguarundi Puma yagouaroundi LC
(Gulf Coast jaguarundi P. y. cacomitli and Sinaloan Jauguarundi P. y. tolteca: E)

Subfamily: Pantherinae

Jaguar Panthera onca NT E

Suborder: Caniformia

Family: Canidae (dogs)

Arctic fox Alopex lagopus (Alaska only - introduced) LC

Kit fox Vulpes macrotis LC (ssp. mutica: E)

Swift fox Vulpes velox LC (ssp. hebes: E)

Red fox Vulpes vulpes LC

Gray fox Urocyon cinereoargenteus LC

Island fox Urocyon littoralis NT
(ssp. littoralis, catalinae, santarosae and santacruzae: E)

Coyote Canis latrans LC

Gray wolf Canis lupus LC E (and XN)

Eastern wolf Canis (lupus) lycaon (Ex??)

Red wolf Canis rufus CR E (and XN)

Family: Ursidae (bears)

American black bear Ursus americanus LC T(S/A)
(Louisiana black bear U. a. luteolus: T)

Brown bear Ursus arctos LC
(includes grizzly bear Ursus arctos horribilis: T, XN and
Alaskan brown bear Ursus arctos middendorffi, also known as the Kodiak bear)

Polar bear Ursus maritimus (Alaska only) VU T

Family: Procyonidae (raccoons)

Ring-tailed cat Bassariscus astutus LC

Raccoon Procyon lotor LC

White-nosed coati Nasua narica LC

Family: Mustelidae (mustelids)

Ermine Mustela erminea LC

Long-tailed weasel Mustela frenata LC

Black-footed ferret Mustela nigripes EN E (and XN)

Least weasel Mustela nivalis LC

American mink Neovison vison LC

Sea mink †Neovison macrodon (E) EX

American marten Martes americana LC

Fisher Martes pennanti LC

Wolverine Gulo gulo LC

American badger Taxidea taxus LC

North American river otter Lontra canadensis LC

Sea otter Enhydra lutris EN (ssp. nereis and kenyoni: T, ssp. nereis also XN)

Family: Otariidae (eared seals, sealions)

Northern fur seal Callorhinus ursinus VU

Guadalupe fur seal Arctocephalus townsendi NT T

Steller sea lion Eumetopias jubatus NT T
(except west of 144° W, where E) (ssp. monteriensis: LC)

California sea lion Zalophus californianus LC

Family: Odobenidae

Walrus Odobenus rosmarus (Alaska only) DD

Family: Phocidae (earless seals)

Hooded seal Cystophora cristata VU

Bearded seal Erignathus barbatus LC

Ribbon seal Histriophoca fasciata (Alaska almost only) DD

Northern elephant seal Mirounga angustirostris LC

Hawaiian monk seal Monachus schauinslandi (Hawaiian Islands only) CR E

Caribbean monk seal †Monachus tropicalis (E) EX

Spotted seal Phoca largha (Alaska only) DD T

Harbor seal Phoca vitulina LC

Harp seal Pagophilus groenlandicus LC

Ringed seal Pusa hispida LC

Gray seal Halichoerus grypus LC

Family: Mephitidae

Western spotted skunk Spilogale gracilis LC

Eastern spotted skunk Spilogale putorius LC

Hooded skunk Mephitis macroura LC

Striped skunk Mephitis mephitis LC

American hog-nosed skunk Conepatus leuconotus LC
(merged with western hog-nosed skunk C. mesoleucus)

The even-toed ungulates are ungulates whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in perissodactyls. There are about 220 artiodactyl species, including many that are of great economic importance to humans.

Family: Tayassuidae (peccaries)

Collared peccary Tayassu tajacu LC

Family: Cervidae (deer)

Subfamily: Cervinae

Elk Cervus canadensis (sometimes as C. elaphus canadensis; C. elaphus: LC)

Subfamily: Capreolinae

Moose Alces alces LC (sometimes as distinct species Alces americanus)

Mule deer Odocoileus hemionus LC

White-tailed deer Odocoileus virginianus LC (Columbian white-tailed deer O. v. leucurus and key deer O. v. clavium: E)

Caribou Rangifer tarandus LC
(includes migratory woodland caribou R. t. caribou: E,
see also: barren-ground caribou R. t. groenlandicus)

Family: Antilocapridae (pronghorn)

Pronghorn Antilocapra americana LC (Sonoran pronghorn A. a. sonoriensis: E)

Family: Bovidae (cattle, antelope, sheep, goats)

Subfamily: Bovinae

American bison Bison bison NT (wood bison B. b. athabascae: T)

†Bison occidentalis (E)

Subfamily: Caprinae

Muskox Ovibos moschatus (Alaska only) LC

Mountain goat Oreamnos americanus LC

Bighorn sheep Ovis canadensis LC (desert bighorn sheep O. c. nelsoni and Sierra Nevada bighorn sheep O. c. sierrae: E)

Dall sheep Ovis dalli (Alaska only) LC

Order: Proboscidea (elephants and allies)

Family: Elephantidae (elephants and mammoths)

Woolly mammoth †Mammuthus primigenius (E)

Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands.

Family: Dugongidae

Steller's sea cow †Hydrodamalis gigas (E) EX

Family: Trichechidae

West Indian manatee Trichechus manatus VU E
(Antillean or Caribbean manatee: EN, ssp. latirostris - Florida manatee: EN)

The order Cetacea includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater.

Suborder: Mysticeti

Family: Balaenidae

Bowhead whale Balaena mysticetus (Alaska almost only) LC (Bering-Chukchi-Beaufort Sea subpopulation: LC)

North Atlantic right whale Eubalaena glacialis EN E

North Pacific right whale Eubalaena japonica (A) (Hawaiian Islands only) EN E
(Northeast Pacific subpopulation: CR)

Family: Balaenopteridae

Subfamily: Balaenopterinae

Common minke whale Balaenoptera acutorostrata LC

Sei whale Balaenoptera borealis EN E

Bryde's whale Balaenoptera edeni (A) DD

Blue whale Balaenoptera musculus EN E (ssp. brevicauda - pygmy blue whale: DD, ssp. musculus North Pacific stock: LR/cd)

Fin whale Balaenoptera physalus EN E

Subfamily: Megapterinae

Humpback whale Megaptera novaeangliae LC E

Family: Eschrichtiidae

Gray whale Eschrichtius robustus LC E

Suborder: Odontoceti

Superfamily: Platanistoidea

Family: Monodontidae

Narwhal Monodon monoceros (Alaska only) NT

Beluga Delphinapterus leucas NT E (Cook Inlet subpopulation: CR)

Family: Phocoenidae

Harbour porpoise Phocoena phocoena LC

Dall's porpoise Phocoenoides dalli LC

Family: Physeteridae

Sperm whale Physeter macrocephalus VU E

Family: Kogiidae

Pygmy sperm whale Kogia breviceps DD

Dwarf sperm whale Kogia sima (Hawaiian Islands only) DD

Family: Ziphiidae

Subfamily: Ziphiinae

Cuvier's beaked whale Ziphius cavirostris LC

Subfamily: Berardiinae

Baird's beaked whale Berardius bairdii DD (collective name for two species - Baird's beaked whale and Arnoux's beaked whale)

Subfamily: Hyperoodontinae

Northern bottlenose whale Hyperoodon ampullatus DD

Sowerby's beaked whale Mesoplodon bidens DD

Hubbs' beaked whale Mesoplodon carlhubbsi DD

Blainville's beaked whale Mesoplodon densirostris DD

Gervais' beaked whale Mesoplodon europaeus DD

Ginkgo-toothed beaked whale Mesoplodon ginkgodens DD

Hector's beaked whale Mesoplodon hectori (A) DD

True's beaked whale Mesoplodon mirus DD

Perrin's beaked whale Mesoplodon perrini DD

Pygmy beaked whale Mesoplodon peruvianus (A) DD

Stejneger's beaked whale Mesoplodon stejnegeri DD

Tropical bottlenose whale Indopacetus pacificus (Hawaiian Islands only) DD

Family: Delphinidae (marine dolphins)

Rough-toothed dolphin Steno bredanensis LC

Common bottlenose dolphin Tursiops truncatus LC

Pantropical spotted dolphin Stenella attenuata LC

Clymene dolphin Stenella clymene DD

Striped dolphin Stenella coeruleoalba LC

Atlantic spotted dolphin Stenella frontalis DD

Spinner dolphin Stenella longirostris DD

Long-beaked common dolphin Delphinus capensis DD

Short-beaked common dolphin Delphinus delphis LC

Fraser's dolphin Lagenodelphis hosei LC

Atlantic white-sided dolphin Lagenorhynchus acutus LC

White-beaked dolphin Lagenorhynchus albirostris LC

Pacific white-sided dolphin Lagenorhynchus obliquidens LC

Northern right whale dolphin Lissodelphis borealis LC

Risso's dolphin Grampus griseus LC

Melon-headed whale Peponocephala electra LC

Pygmy killer whale Feresa attenuata DD

False killer whale Pseudorca crassidens DD

Killer whale Orcinus orca DD E

Short-finned pilot whale Globicephala macrorhynchus DD

Long-finned pilot whale Globicephala melas DD

Family: Myocastoridae

Coypu Myocastor coypus (I) LC

Family: Sciuridae (squirrels)

Red-bellied squirrel Sciurus aureogaster (I) LC

Family: Muridae (mice, rats, voles, gerbils, hamsters, etc.)

Subfamily: Murinae

House mouse Mus musculus (I) LC

Polynesian rat Rattus exulans (I) (Hawaiian Islands only) LC

Brown rat Rattus norvegicus (I) LC

Roof rat Rattus rattus (I) LC

Family: Leporidae (rabbits, hares)

European rabbit Oryctolagus cuniculus (I) (Hawaiian Islands only) NT (I) NT

Cape hare Lepus capensis (I) LC

European hare Lepus europaeus (I) LC

Family: Cercopithecidae (Old World monkeys)

Rhesus monkey Macaca mulatta (I) LC

Japanese macaque Macaca fuscata (I) LC T

Vervet monkey Chlorocebus pygerythrus (I) LC

Family: Felidae (cats)

Feral cat Felis (silvestris) catus (I) (F. silvestris: LC)

Family: Herpestidae (mongoose)

Small Asian mongoose Herpestes javanicus (I) (Hawaiian Islands only) LC

Family: Canidae (dogs)

Feral dog Canis lupus familiaris (I)

Family: Mustelidae (mustelids)

Beech marten Martes foina (I) LC

Family: Suidae (pigs)

Feral pig or wild boar Sus scrofa (I) LC

Family: Cervidae (deer)

Fallow deer Dama dama (I) LC

Chital Axis axis (I) LC

Hog deer Hyelaphus porcinus (I) EN

Sambar Rusa unicolor (I) VU

Red deer Cervus elaphus (I) (LC, including wapiti as C. e. canadensis)

Sika Cervus nippon (I) LC

Family: Bovidae (cattle, antelope, sheep, goats)

Nilgai Boselaphus tragocamelus (I) LC (I) LC

Feral cattle Bos (primigenius) taurus (I)

Subfamily: Hippotraginae

Gemsbok Oryx gazella (I) LC

Subfamily: Antilopinae

Blackbuck Antilope cervicapra (I) NT

Bezoar ibex Capra aegagrus aegagrus (I) LC

Mouflon Ovis orientalis (I) VU

Barbary sheep Ammotragus lervia (I) VU

Feral goat Capra aegagrus hircus (I)

Family: Equidae (horses and allies)

Feral donkey Equus africanus asinus (I) (See also: Burro)

Feral horse Equus ferus caballus (I) (See also: Mustang)