List of mammals of Ascension Island

This is a list of the mammal species recorded on and around Ascension Island. Ascension Island has two native mammal species, both of which are beaked whales in the genus Mesoplodon. Neither is thought to be at risk, but there is insufficient data collected on them to allow an assessment to be made.

The following tags are used to highlight each species' conservation status as assessed by the IUCN:

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: Cetacea (whales)

---

Blainville's beaked whale

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: Ziphidae
      • Subfamily: Hyperoodontinae
        • Genus: Mesoplodon
          • Blainville's beaked whale Mesoplodon densirostris DD
          • Gervais' beaked whale Mesoplodon europaeus DD

See also

• List of chordate orders
• List of regional mammals lists
• List of prehistoric mammals
• Mammal classification
• New mammal species