List of mammals of Puerto Rico
This is a list of the mammal species recorded in Puerto Rico. These are the mammal species in Puerto Rico, of which one is critically endangered, none are endangered, two are vulnerable, and none are near threatened. Two of the species listed for Puerto Rico are considered to be extinct. The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature: 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: 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 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 . Suborder: Hystricomorpha Family: Echimyidae Subfamily: Heteropsomyinae Genus: Heteropsomys Insular cave rat, H. insulans Subfamily: Isolobodontinae Genus: Isolobodon Puerto Rican hutia, I. portoricensis introduced Suborder: Muridae Family: Muridae Genus: Mus House mouse, M. musculus introduced Genus: Rattus Brown rat, R. norvegicus introduced Black rat, R. rattus introduced Order: Primates The order Primates includes the lemurs, monkeys, and apes, with the latter category including humans. Family: Cercopithecidae Genus: Erythrocebus Common patas monkey, E. patas introduced 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, Noctilio leporinus LR/lc Family: Vespertilionidae Subfamily: Vespertilioninae Genus: Lasiurus Eastern red bat, Lasiurus borealis LR/lc Family: Molossidae Genus: Molossus Velvety free-tailed bat, Molossus molossus LR/lc Genus: Tadarida Mexican free-tailed bat, Tadarida brasiliensis LR/nt Family: Mormoopidae Genus: Mormoops Antillean ghost-faced bat, Mormoops blainvillii LR/nt Genus: Pteronotus Parnell's mustached bat, Pteronotus parnellii LR/lc Sooty mustached bat, Pteronotus quadridens LR/nt Family: Phyllostomidae Subfamily: Phyllostominae Genus: Macrotus Waterhouse's leaf-nosed bat, Macrotus waterhousii extirpated LR/lc Subfamily: Brachyphyllinae Genus: Brachyphylla Antillean fruit-eating bat, Brachyphylla cavernarum LR/lc Subfamily: Phyllonycterinae Genus: Phyllonycteris Puerto Rican flower bat, Phyllonycteris major EX Subfamily: Glossophaginae Genus: Monophyllus Insular single leaf bat, Monophyllus plethodon LC possibly extirpated Puerto Rican long-nosed bat, M. p. prater Leach's single leaf bat, Monophyllus redmani LR/lc Subfamily: Stenodermatinae Genus: Artibeus Jamaican fruit bat, Artibeus jamaicensis LR/lc Genus: Stenoderma Red fruit bat, Stenoderma rufum VU 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,