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This is a list of the mammal species recorded in Saint Kitts and Nevis. Of the mammal species in Saint Kitts and Nevis, one is vulnerable, one is near threatened, and one is classified as extinct.^[1]

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: 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, T. manatus VU extirpated

Order: Rodentia (rodents)

Rodents make up the largest order of mammals, with over 40% of mammalian species. 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).

Family: Cricetidae
- Subfamily: Sigmodontinae
  - Genus: Pennatomys
    - Nevis rice rat, P. nivalis EX
Suborder: Sciuromorpha
- Family: Sciuridae (squirrels)
  - Subfamily: Sciurinae
    - Tribe: Sciurini
      - Genus: Sciurus
        Red squirrel, S. vulgaris LC introduced

Order: Primates

The order Primates includes the lemurs, monkeys, and apes, with the latter category including humans.

Family: Cercopithecidae
- Genus: Chlorocebus
  - Green monkey, C. sabaeus LC introduced^[2]

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.

Family: Noctilionidae
- Genus: Noctilio
  - Greater bulldog bat, N. leporinus LC
Family: Molossidae
- Genus: Tadarida
  - Mexican free-tailed bat, Tadarida brasiliensis LR/nt
Family: Phyllostomidae
- Subfamily: Brachyphyllinae
  - Genus: Brachyphylla
    - Antillean fruit-eating bat, Brachyphylla cavernarum LR/lc
- Subfamily: Carolliinae
  - Genus: Carollia
    - Seba's short-tailed bat, Carollia perspicillata LR/lc
- Subfamily: Stenodermatinae
  - Genus: Artibeus
    - Jamaican fruit bat, Artibeus jamaicensis 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: 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
      - Blainville's beaked whale, Mesoplodon densirostris DD
      - True's beaked whale, Mesoplodon mirus DD
    - Genus: Ziphius
      - Cuvier's beaked whale, Ziphius cavirostris DD

Order: Carnivora (carnivorans)

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

Suborder: Pinnipedia
- Family: Phocidae (earless seals)
  - Genus: Neomonachus
    - Caribbean monk seal, Neomonachus tropicalis EX

Notes

^ This list is derived from the IUCN Red List which lists species of mammals and includes those mammals that have recently been classified as extinct (since 1500 AD). The taxonomy and naming of the individual species is based on those used in existing Wikipedia articles as of 21 May 2007 and supplemented by the common names and taxonomy from the IUCN, Smithsonian Institution, or University of Michigan where no Wikipedia article was available.
^ Kingdon, J. & Gippoliti, S. (2008). "Chlorocebus sabaeus". IUCN Red List of Threatened Species. 2008: e.T136265A4267012.

References

"The IUCN Red List of Threatened Species: Mammals of Saint Kitts and Nevis". IUCN. 2001. Retrieved 22 May 2007. ^{[dead link‍]}
"Mammal Species of the World". Smithsonian National Museum of Natural History. 2005. Archived from the original on 27 April 2007. Retrieved 22 May 2007.
"Animal Diversity Web". University of Michigan Museum of Zoology. 1995–2006. Retrieved 22 May 2007.