# List of mammals of Costa Rica

This is a list of the mammal species recorded in Costa Rica. Of the mammal species in Costa Rica, one is critically endangered, four are endangered, six are vulnerable, and three are near threatened. One species is considered extinct.
The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:
| EX | Extinct | No reasonable doubt that the last individual has died. |
| EW | Extinct in the wild | Known only to survive in captivity or as a naturalized populations well outside its previous range. |
| CR | Critically endangered | The species is in imminent risk of extinction in the wild. |
| EN | Endangered | The species is facing an extremely high risk of extinction in the wild. |
| VU | Vulnerable | The species is facing a high risk of extinction in the wild. |
| NT | Near threatened | The species does not meet any of the criteria that would categorise it as risking extinction but it is likely to do so in the future. |
| LC | Least concern | There are no current identifiable risks to the species. |
| DD | Data deficient | There is inadequate information to make an assessment of the risks to this species. |
Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of near threatened and least concern categories:
| LR/cd | Lower risk/conservation dependent | Species which were the focus of conservation programmes and may have moved into a higher risk category if that programme was discontinued. |
| LR/nt | Lower risk/near threatened | Species which are close to being classified as vulnerable but are not the subject of conservation programmes. |
| LR/lc | Lower risk/least concern | Species for which there are no identifiable risks. |

## Subclass: Theria
### Infraclass: Metatheria
#### Order: Didelphimorphia (common opossums)

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: Caluromyinae
*** Genus: Caluromys
**** Derby's woolly opossum, Caluromys derbianus VU
** Subfamily: Didelphinae
*** Genus: Chironectes
**** Water opossum, Chironectes minimus LR/nt
*** Genus: Didelphis
**** Common opossum, Didelphis marsupialis LR/lc
**** Virginia opossum, Didelphis virginiana LR/lc
*** Genus: Marmosa
**** Alston's mouse opossum, Marmosa alstoni LR/nt
**** Mexican mouse opossum, Marmosa mexicana LR/lc
*** Genus: Metachirus
**** Brown four-eyed opossum, Metachirus nudicaudatus LR/lc
*** Genus: Philander
**** Gray four-eyed opossum, Philander opossum LR/lc

### Infraclass: Eutheria
#### Order: Sirenia (manatees and dugongs)

Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands. All four species are endangered.
* Family: Trichechidae
** Genus: Trichechus
*** West Indian manatee, Trichechus manatus VU

#### Order: Cingulata (armadillos)

The armadillos are small mammals with a bony armored shell. They are native to the Americas. There are around 20 extant species.
* Family: Dasypodidae (armadillos)
** Subfamily: Dasypodinae
*** Genus: Dasypus
**** Nine-banded armadillo, Dasypus novemcinctus LC
** Subfamily: Tolypeutinae
*** Genus: Cabassous
**** Northern naked-tailed armadillo, Cabassous centralis DD

#### Order: Pilosa (anteaters, sloths and tamanduas)

The order Pilosa is extant only in the Americas and includes the anteaters, sloths, and tamanduas.
* Suborder: Folivora
** Family: Bradypodidae (three-toed sloths)
*** Genus: Bradypus
**** Brown-throated three-toed sloth, Bradypus variegatus LC
** Family: Choloepodidae (two-toed sloths)
*** Genus: Choloepus
**** Hoffmann's two-toed sloth, Choloepus hoffmanni LC
* Suborder: Vermilingua
** Family: Cyclopedidae
*** Genus: Cyclopes
**** Silky anteater, C. didactylus LC
**** Central American silky anteater, C. dorsalis NE
** Family: Myrmecophagidae (American anteaters)
*** Genus: Myrmecophaga
**** Giant anteater, Myrmecophaga tridactyla VU
*** Genus: Tamandua
**** Northern tamandua, Tamandua mexicana LC

#### Order: Primates

The order Primates contains humans and their closest relatives: lemurs, lorisoids, tarsiers, monkeys, and apes. Four species of monkey are native to Costa Rica.
* Suborder: Haplorhini
** Infraorder: Simiiformes
*** Parvorder: Platyrrhini (New World monkeys)
**** Family: Cebidae
***** Subfamily: Cebinae
****** Genus: Cebus
******* Panamanian white-faced capuchin, Cebus imitator LC
***** Subfamily: Saimiriinae
****** Genus: Saimiri
******* Central American squirrel monkey, Saimiri oerstedii VU
**** Family: Atelidae
***** Subfamily: Alouattinae
****** Genus: Alouatta
******* Mantled howler, Alouatta palliata LC
***** Subfamily: Atelinae
****** Genus: Ateles
******* Geoffroy's spider monkey, Ateles geoffroyi EN

#### Order: Rodentia (rodents)

Rodents make up the largest order of mammals, with over 40% of mammalian species. However, there are fewer than 50 rodent species in Costa Rica. They have two incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the capybara can weigh up to 45 kg (99 lb).
* Suborder: Hystricognathi
** Family: Erethizontidae (New World porcupines)
*** Subfamily: Erethizontinae
**** Genus: Coendou
***** Mexican hairy dwarf porcupine, Coendou mexicanus LR/lc
** Family: Dasyproctidae (agoutis and pacas)
*** Genus: Dasyprocta
**** Central American agouti, Dasyprocta punctata LR/lc
** Family: Cuniculidae
*** Genus: Cuniculus
**** Lowland paca, Cuniculus paca LC
** Family: Echimyidae
*** Subfamily: Eumysopinae
**** Genus: Hoplomys
***** Armored rat, Hoplomys gymnurus LR/lc
**** Genus: Proechimys
***** Tome's spiny-rat, Proechimys semispinosus LR/lc
* Suborder: Sciurognathi
** Family: Sciuridae (squirrels)
*** Subfamily: Sciurinae
**** Tribe: Sciurini
***** Genus: Microsciurus
****** Central American dwarf squirrel, Microsciurus alfari LR/lc
***** Genus: Sciurus
****** Deppe's squirrel, Sciurus deppei LR/lc
****** Red-tailed squirrel, Sciurus granatensis LR/lc
****** Variegated squirrel, Sciurus variegatoides LR/lc
***** Genus: Syntheosciurus
****** Bangs's mountain squirrel, Syntheosciurus brochus LR/nt
** Family: Geomyidae
*** Genus: Orthogeomys
**** Chiriqui pocket gopher, Orthogeomys cavator LR/lc
**** Cherrie's pocket gopher, Orthogeomys cherriei LR/nt
**** Variable pocket gopher, Orthogeomys heterodus LR/nt
**** Underwood's pocket gopher, Orthogeomys underwoodi LR/lc
** Family: Heteromyidae
*** Subfamily: Heteromyinae
**** Genus: Heteromys
***** Desmarest's spiny pocket mouse, Heteromys desmarestianus LR/lc
***** Mountain spiny pocket mouse, Heteromys oresterus LR/nt
***** Salvin's spiny pocket mouse, Heteromys salvini LR/lc
** Family: Cricetidae
*** Subfamily: Tylomyinae
**** Genus: Nyctomys
***** Sumichrast's vesper rat, Nyctomys sumichrasti LR/lc
**** Genus: Ototylomys
***** Big-eared climbing rat, Ototylomys phyllotis LR/lc
**** Genus: Tylomys
***** Watson's climbing rat, Tylomys watsoni LR/lc
*** Subfamily: Neotominae
**** Genus: Peromyscus
***** Mexican deer mouse, Peromyscus mexicanus LR/lc
**** Genus: Reithrodontomys
***** Short-nosed harvest mouse, Reithrodontomys brevirostris LR/lc
***** Chiriqui harvest mouse, Reithrodontomys creper LR/lc
***** Slender harvest mouse, Reithrodontomys gracilis LR/lc
***** Mexican harvest mouse, Reithrodontomys mexicanus LR/lc
***** Nicaraguan harvest mouse, Reithrodontomys paradoxus LR/nt
***** Rodriguez's harvest mouse, Reithrodontomys rodriguezi VU
***** Sumichrast's harvest mouse, Reithrodontomys sumichrasti LR/lc
**** Genus: Scotinomys
***** Alston's brown mouse, Scotinomys teguina LR/lc
***** Chiriqui brown mouse, Scotinomys xerampelinus LR/lc
*** Subfamily: Sigmodontinae
**** Genus: Melanomys
***** Dusky rice rat, Melanomys caliginosus LR/lc
**** Genus: Oecomys
***** Trinidad arboreal rice rat, Oecomys trinitatis LR/lc
**** Genus: Oligoryzomys
***** Fulvous pygmy rice rat, Oligoryzomys fulvescens LR/lc
**** Genus: Oryzomys
***** Tomes's rice rat, Oryzomys albigularis LR/lc
***** Alfaro's rice rat, Oryzomys alfaroi LR/lc
***** Bolivar rice rat, Oryzomys bolivaris LR/lc
***** Coues' rice rat, Oryzomys couesi LR/lc
***** Boquete rice rat, Oryzomys devius LR/lc
***** Talamancan rice rat, Oryzomys talamancae LR/lc
**** Genus: Rheomys
***** Goldman's water mouse, Rheomys raptor LR/lc
***** Underwood's water mouse, Rheomys underwoodi LR/lc
**** Genus: Sigmodon
***** Southern cotton rat, Sigmodon hirsutus LC
**** Genus: Sigmodontomys
***** Alfaro's rice water rat, Sigmodontomys alfari LR/lc
***** Harris's rice water rat, Sigmodontomys aphrastus CR
**** Genus: Zygodontomys
***** Short-tailed cane rat, Zygodontomys brevicauda LR/lc

#### Order: Lagomorpha (lagomorphs)

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: Leporidae (rabbits, hares)
** Genus: Sylvilagus
*** Dice's cottontail, Sylvilagus dicei VU
*** Eastern cottontail, Sylvilagus floridanus LR/lc
*** Central American tapeti, Sylvilagus gabbi LC

#### Order: Eulipotyphla (shrews, hedgehogs, moles, and solenodons)

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
**** Genus: Cryptotis
***** Talamancan small-eared shrew, Cryptotis gracilis VU
***** Blackish small-eared shrew, Cryptotis nigrescens LR/lc

#### Order: Chiroptera (bats)

The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight. Bat species account for about 20% of all mammals. 109 species of bats have been recorded in Costa Rica, accounting for half of the country's mammal species, and about 12% of all Chiroptera worldwide.
* Family: Noctilionidae
** Genus: Noctilio
*** Lesser bulldog bat, Noctilio albiventris LR/lc
*** Greater bulldog bat, Noctilio leporinus LR/lc
* Family: Vespertilionidae
** Subfamily: Myotinae
*** Genus: Myotis
**** Silver-tipped myotis, Myotis albescens LR/lc
**** Elegant myotis, Myotis elegans LR/nt
**** Hairy-legged myotis, Myotis keaysi LR/lc
**** Black myotis, Myotis nigricans LR/lc
**** Montane myotis, Myotis oxyotus LR/lc
**** Riparian myotis, Myotis riparius LR/lc
** Subfamily: Vespertilioninae
*** Genus: Bauerus
**** Van Gelder's bat, Bauerus dubiaquercus VU
*** Genus: Eptesicus
**** Brazilian brown bat, Eptesicus brasiliensis LR/lc
**** Argentine brown bat, Eptesicus furinalis LR/lc
**** Big brown bat, Eptesicus fuscus LR/lc
*** Genus: Lasiurus
**** Desert red bat, Lasiurus blossevillii LR/lc
**** Tacarcuna bat, Lasiurus castaneus VU
**** Southern yellow bat, Lasiurus ega LR/lc
*** Genus: Rhogeessa
**** Black-winged little yellow bat, Rhogeessa tumida LR/lc
* Family: Molossidae
** Genus: Cynomops
*** Greenhall's dog-faced bat, Cynomops greenhalli LR/lc
** Genus: Eumops
*** Black bonneted bat, Eumops auripendulus LR/lc
*** Dwarf bonneted bat, Eumops bonariensis LR/lc
*** Wagner's bonneted bat, Eumops glaucinus LR/lc
*** Sanborn's bonneted bat, Eumops hansae LR/lc
** Genus: Molossus
*** Black mastiff bat, Molossus ater LR/lc
*** Bonda mastiff bat, Molossus bondae LR/lc
*** Coiban mastiff bat, Molossus coibensis LR/nt
*** Velvety free-tailed bat, Molossus molossus LR/lc
*** Miller's mastiff bat, Molossus pretiosus LR/lc
*** Sinaloan mastiff bat, Molossus sinaloae LR/lc
** Genus: Tadarida
*** Mexican free-tailed bat, Tadarida brasiliensis LR/nt
* Family: Emballonuridae
** Genus: Balantiopteryx
*** Gray sac-winged bat, Balantiopteryx plicata LR/lc
** Genus: Cormura
*** Wagner's sac-winged bat, Cormura brevirostris LR/lc
** Genus: Cyttarops
*** Short-eared bat, Cyttarops alecto LR/nt
** Genus: Diclidurus
*** Northern ghost bat, Diclidurus albus LR/lc
** Genus: Peropteryx
*** Greater dog-like bat, Peropteryx kappleri LR/lc
*** Lesser doglike bat, Peropteryx macrotis LR/lc
** Genus: Rhynchonycteris
*** Proboscis bat, Rhynchonycteris naso LR/lc
** Genus: Saccopteryx
*** Greater sac-winged bat, Saccopteryx bilineata LR/lc
*** Lesser sac-winged bat, Saccopteryx leptura LR/lc
* Family: Mormoopidae
** Genus: Pteronotus
*** Naked-backed bat, Pteronotus davyi LR/lc
*** Big naked-backed bat, Pteronotus gymnonotus LR/lc
*** Parnell's mustached bat, Pteronotus parnellii LR/lc
*** Wagner's mustached bat, Pteronotus personatus LR/lc
* Family: Phyllostomidae
** Subfamily: Phyllostominae
*** Genus: Chrotopterus
**** Big-eared woolly bat, Chrotopterus auritus LR/lc
*** Genus: Glyphonycteris
**** Davies's big-eared bat, Glyphonycteris daviesi LR/nt
**** Tricolored big-eared bat, Glyphonycteris sylvestris LR/nt
*** Genus: Lampronycteris
**** Yellow-throated big-eared bat, Lampronycteris brachyotis LR/lc
*** Genus: Lonchorhina
**** Tomes's sword-nosed bat, Lonchorhina aurita LR/lc
*** Genus: Lophostoma
**** Pygmy round-eared bat, Lophostoma brasiliense LR/lc
**** White-throated round-eared bat, Lophostoma silvicolum LR/lc
*** Genus: Macrophyllum
**** Long-legged bat, Macrophyllum macrophyllum LR/lc
*** Genus: Micronycteris
**** Hairy big-eared bat, Micronycteris hirsuta LR/lc
**** White-bellied big-eared bat, Micronycteris minuta LR/lc
**** Schmidts's big-eared bat, Micronycteris schmidtorum LR/lc
*** Genus: Mimon
**** Striped hairy-nosed bat, Mimon crenulatum LR/lc
*** Genus: Phylloderma
**** Pale-faced bat, Phylloderma stenops LR/lc
*** Genus: Phyllostomus
**** Pale spear-nosed bat, Phyllostomus discolor LR/lc
**** Greater spear-nosed bat, Phyllostomus hastatus LR/lc
*** Genus: Tonatia
**** Stripe-headed round-eared bat, Tonatia saurophila LR/lc
*** Genus: Trachops
**** Fringe-lipped bat, Trachops cirrhosus LR/lc
*** Genus: Trinycteris
**** Niceforo's big-eared bat, Trinycteris nicefori LR/lc
*** Genus: Vampyrum
**** Spectral bat, Vampyrum spectrum LR/nt
** Subfamily: Lonchophyllinae
*** Genus: Lonchophylla
**** Godman's nectar bat, Lonchophylla mordax LR/lc
**** Orange nectar bat, Lonchophylla robusta LR/lc
** Subfamily: Glossophaginae
*** Genus: Anoura
**** Handley's tailless bat, Anoura cultrata LR/lc
**** Geoffroy's tailless bat, Anoura geoffroyi LR/lc
*** Genus: Choeroniscus
**** Godman's long-tailed bat, Choeroniscus godmani LR/nt
*** Genus: Glossophaga
**** Commissaris's long-tongued bat, Glossophaga commissarisi LR/lc
**** Gray long-tongued bat, Glossophaga leachii LR/lc
**** Pallas's long-tongued bat, Glossophaga soricina LR/lc
*** Genus: Lichonycteris
**** Dark long-tongued bat, Lichonycteris obscura LR/lc
** Subfamily: Carolliinae
*** Genus: Carollia
**** Silky short-tailed bat, Carollia brevicauda LR/lc
**** Chestnut short-tailed bat, Carollia castanea LR/lc
**** Seba's short-tailed bat, Carollia perspicillata LR/lc
** Subfamily: Stenodermatinae
*** Genus: Artibeus
**** Aztec fruit-eating bat, Artibeus aztecus LR/lc
**** Great fruit-eating bat, Artibeus intermedius LR/lc
**** Jamaican fruit bat, Artibeus jamaicensis LR/lc
**** Great fruit-eating bat, Artibeus lituratus LR/lc
**** Pygmy fruit-eating bat, Artibeus phaeotis LR/lc
**** Toltec fruit-eating bat, Artibeus toltecus LR/lc
*** Genus: Centurio
**** Wrinkle-faced bat, Centurio senex LR/lc
*** Genus: Chiroderma
**** Salvin's big-eyed bat, Chiroderma salvini LR/lc
**** Hairy big-eyed bat, Chiroderma villosum LR/lc
*** Genus: Ectophylla
**** Honduran white bat, Ectophylla alba LR/nt
*** Genus: Enchisthenes
**** Velvety fruit-eating bat, Enchisthenes hartii LR/lc
*** Genus: Mesophylla
**** MacConnell's bat, Mesophylla macconnelli LR/lc
*** Genus: Sturnira
**** Little yellow-shouldered bat, Sturnira lilium LR/lc
**** Highland yellow-shouldered bat, Sturnira ludovici LR/lc
**** Louis's yellow-shouldered bat, Sturnira luisi LR/lc
**** Talamancan yellow-shouldered bat, Sturnira mordax LR/nt
*** Genus: Uroderma
**** Tent-making bat, Uroderma bilobatum LR/lc
**** Brown tent-making bat, Uroderma magnirostrum LR/lc
*** Genus: Vampyressa
**** Striped yellow-eared bat, Vampyressa nymphaea LR/lc
**** Southern little yellow-eared bat, Vampyressa pusilla LR/lc
*** Genus: Vampyrodes
**** Great stripe-faced bat, Vampyrodes caraccioli LR/lc
*** Genus: Platyrrhinus
**** Heller's broad-nosed bat, Platyrrhinus helleri LR/lc
**** Greater broad-nosed bat, Platyrrhinus vittatus LR/lc
** Subfamily: Desmodontinae
*** Genus: Desmodus
**** Common vampire bat, Desmodus rotundus LR/lc
*** Genus: Diaemus
**** White-winged vampire bat, Diaemus youngi LR/lc
*** Genus: Diphylla
**** Hairy-legged vampire bat, Diphylla ecaudata LR/nt
* Family: Furipteridae
** Genus: Furipterus
*** Thumbless bat, Furipterus horrens LR/lc
* Family: Thyropteridae
** Genus: Thyroptera
*** Spix's disk-winged bat, Thyroptera tricolor LR/lc

#### Order: Cetacea (whales)

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: Balaenopteridae (baleen whales)
*** Genus: Balaenoptera
**** Common minke whale, Balaenoptera acutorostrata
**** Sei whale, Balaenoptera borealis
**** Bryde's whale, Balaenoptera brydei
**** Blue whale, Balaenoptera musculus
*** Genus: Megaptera
**** Humpback whale, Megaptera novaeangliae
* Suborder: Odontoceti
** Superfamily: Platanistoidea
*** Family: Delphinidae (marine dolphins)
**** Genus: Delphinus
***** Short-beaked common dolphin, Delphinus delphis DD
**** Genus: Feresa
***** Pygmy killer whale, Feresa attenuata DD
**** Genus: Globicephala
***** Short-finned pilot whale, Globicephala macrorhyncus DD
**** Genus: Lagenodelphis
***** Fraser's dolphin, Lagenodelphis hosei DD
**** Genus: Grampus
***** Risso's dolphin, Grampus griseus DD
**** Genus: Orcinus
***** Killer whale, Orcinus orca DD
**** Genus: Peponocephala
***** Melon-headed whale, Peponocephala electra DD
**** Genus: Pseudorca
***** False killer whale, Pseudorca crassidens DD
**** Genus: Sotalia
***** Guiana dolphin, Sotalia guianensis DD
**** Genus: Stenella
***** Pantropical spotted dolphin, Stenella attenuata DD
***** Clymene dolphin, Stenella clymene DD
***** Striped dolphin, Stenella coeruleoalba DD
***** Atlantic spotted dolphin, Stenella frontalis DD
***** Spinner dolphin, Stenella longirostris DD
**** Genus: Steno
***** Rough-toothed dolphin, Steno bredanensis DD
**** Genus: Tursiops
***** Common bottlenose dolphin, Tursiops truncatus
*** Family: Physeteridae (sperm whales)
**** Genus: Physeter
***** Sperm whale, Physeter catodon DD
*** Family: Kogiidae (dwarf sperm whales)
**** Genus: Kogia
***** Pygmy sperm whale, Kogia breviceps DD
***** Dwarf sperm whale, Kogia sima DD
** Superfamily Ziphioidea
*** Family: Ziphidae (beaked whales)
**** Genus: Mesoplodon
***** Gervais' beaked whale, Mesoplodon europaeus DD
***** Ginkgo-toothed beaked whale, Mesoplodon ginkgodens DD
***** Pygmy beaked whale, Mesoplodon peruvianus DD
**** Genus: Ziphius
***** Cuvier's beaked whale, Ziphius cavirostris DD

#### Order: Carnivora (carnivorans)

There are over 260 species of carnivores, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition.
* Suborder: Feliformia
** Family: Felidae (cats)
*** Subfamily: Felinae
**** Genus: Herpailurus
***** Jaguarundi, Herpailurus yagouaroundi LC
**** Genus: Leopardus
***** Ocelot, Leopardus pardalis LC
***** Oncilla, Leopardus tigrinus NT
***** Margay, Leopardus wiedii LC
**** Genus: Puma
***** Cougar, Puma concolor LC
*** Subfamily: Pantherinae
**** Genus: Panthera
***** Jaguar, Panthera onca NT
* Suborder: Caniformia
** Family: Canidae (dogs, foxes)
*** Genus: Canis
**** Coyote, Canis latrans LC
*** Genus: Urocyon
**** Gray fox, Urocyon cinereoargenteus LC
*** Genus: Speothos
**** Bush dog, Speothos venaticus NT
** Family: Procyonidae (raccoons)
*** Genus: Bassaricyon
**** Northern olingo, Bassaricyon gabbii LR/nt
*** Genus: Bassariscus
**** Cacomistle, Bassariscus sumichrasti LR/nt
*** Genus: Nasua
**** White-nosed coati, Nasua narica LR/lc
*** Genus: Potos
**** Kinkajou, Potos flavus LR/lc
*** Genus: Procyon
**** Crab-eating raccoon, Procyon cancrivorus LR/lc
**** Common raccoon, Procyon lotor LR/lc
** Family: Mustelidae (mustelids)
*** Genus: Eira
**** Tayra, Eira barbara LR/lc
*** Genus: Galictis
**** Greater grison, Galictis vittata LR/lc
*** Genus: Lontra
**** Neotropical river otter, Lontra longicaudis NT
*** Genus: Neogale
**** Long-tailed weasel, Neogale frenata LR/lc
** Family: Mephitidae
*** Genus: Conepatus
**** Striped hog-nosed skunk, Conepatus semistriatus LR/lc
*** Genus: Mephitis
**** Hooded skunk, Mephitis macroura LR/lc
* Suborder: Pinnipedia
** Family: Otariidae (eared seals, sea lions)
*** Genus: Zalophus
**** California sea lion, Zalophus californianus LR/lc vagrant
**** Galápagos sea lion, Zalophus wollebaeki EN vagrant
** Family: Phocidae (earless seals)
*** Genus: Neomonachus
**** Caribbean monk seal, Neomonachus tropicalis EX

#### Order: Perissodactyla (odd-toed ungulates)

The odd-toed ungulates are browsing and grazing mammals. They are usually large to very large, and have relatively simple stomachs and a large middle toe.
* Family: Tapiridae (tapirs)
** Genus: Tapirus
*** Baird's tapir, Tapirus bairdii EN

#### Order: Artiodactyla (even-toed ungulates)

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)
** Genus: Dicotyles
*** Collared peccary, D. tajacu LC
** Genus: Tayassu
*** White-lipped peccary, Tayassu pecari NT
* Family: Cervidae (deer)
** Subfamily: Capreolinae
*** Genus: Mazama
**** Red brocket, Mazama temama DD
*** Genus: Odocoileus
**** White-tailed deer, Odocoileus virginianus LR/lc