This is a list of the mammal species recorded in Samoa. There are 9 mammal species in Samoa, of which 1 is endangered and 2 are vulnerable.
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: Pteropodidae (flying foxes, Old World fruit bats)
Subfamily: Pteropodinae
Genus: Pteropus
Samoa Flying-fox Pteropus samoensis VU
Insular Flying-fox Pteropus tonganus LR/lc
Family: Vespertilionidae
Subfamily: Myotinae
Genus: Myotis
Insular Myotis Myotis insularum DD
Family: Emballonuridae
Genus: Emballonura
Polynesian Sheath-tailed Bat Emballonura semicaudata 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: Balaenopteridae
Subfamily: Megapterinae
Genus: Megaptera
Humpback Whale Megaptera novaeangliae VU
Suborder: Odontoceti
Superfamily: Platanistoidea
Family: Ziphidae
Subfamily: Hyperoodontinae
Genus: Mesoplodon
Ginkgo-toothed Beaked Whale Mesoplodon ginkgodens DD
Family: Delphinidae (marine dolphins)
Genus: Tursiops
Bottlenose Dolphin Tursiops truncatus DD
Genus: Stenella
Spinner Dolphin Stenella longirostris LR/cd
Genus: Lagenodelphis
Fraser's Dolphin Lagenodelphis hosei DD
