List of mammals of Micronesia

This is a list of the mammal species recorded in Micronesia. There are twelve mammal species in Micronesia, of which three are critically endangered and two are endangered.

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: 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: Pteropodidae (flying foxes, Old World fruit bats)
 * Subfamily: Pteropodinae
 * Genus: Pteropus
 * Chuuk flying-fox, Pteropus insularis CR
 * Mariana fruit bat, Pteropus mariannus EN
 * Caroline flying fox, Pteropus molossinus CR
 * Mortlock flying fox, Pteropus phaeocephalus CR
 * Family: Emballonuridae
 * Genus: Emballonura
 * Polynesian sheath-tailed bat, Emballonura semicaudata EN

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: Odontoceti
 * Superfamily: Platanistoidea
 * Family: Kogiidae
 * Genus: Kogia
 * Dwarf sperm whale, Kogia sima LR/lc
 * Family: Ziphidae
 * Subfamily: Hyperoodontinae
 * Genus: Mesoplodon
 * Blainville's beaked whale, Mesoplodon densirostris DD
 * Ginkgo-toothed beaked whale, Mesoplodon ginkgodens DD
 * Family: Delphinidae (marine dolphins)
 * Genus: Steno
 * Rough-toothed dolphin, Steno bredanensis DD
 * Genus: Stenella
 * Spinner dolphin, Stenella longirostris LR/cd
 * Genus: Lagenodelphis
 * Fraser's dolphin, Lagenodelphis hosei DD
 * Genus: Feresa
 * Pygmy killer whale, Feresa attenuata DD