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This is a list of the mammal species recorded in Kiribati, a sovereign state in the central Pacific Ocean. There are thirteen mammal species around Kiribati, all of which are marine mammals in the order Cetacea. None are thought to be at risk, but some have insufficient data collected on them to allow an assessment to be made.^[1]

The marine mammals of the order Cetacea that have been identified in the Pacific is described in the literature review by Miller (2006)^[2] and by the Secretariat of the Pacific Regional Environment Programme (SPREP).^[3] A revision of the list of cetaceans reported in the ocean surrounding the islands of Kiribati was carried by Miller (2009).^[4]

In 2010 a research voyage was conducted within the exclusive economic zones (EEZ) of Kiribati and Tuvalu. The survey confirmed the presence of seven species of cetaceans: Bryde's, sperm, killer, shortfinned pilot and false killer whales and spinner and striped dolphins.^[5]

The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:

DD	Data deficient	There is inadequate information to make an assessment of the risks to this species.

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.

Lack of studies and dedicated observation efforts result in poor understanding of cetacean diversity in the region.^[6]

Suborder: Mysticeti
- Family: Balaenidae
  - Genus: Eubalaena
    - Southern right whale, Eubalaena australis LR/cd^[7]
Suborder: Odontoceti
- Family: Physeteridae
  - Genus: Physeter
    - Sperm whale, Physeter macrocephalus VU^[8]
- Superfamily: Platanistoidea
  - Family: Kogiidae
    - Genus: Kogia
      - Dwarf sperm whale, Kogia sima LR/lc
  - Family: Ziphidae
    - Subfamily: Hyperoodontinae
      - Genus: Hyperoodon
        Southern bottlenose whale, Hyperoodon planifrons LR/cd
      - Genus: Mesoplodon
        Blainville's beaked whale, Mesoplodon densirostris DD
        
        Ginkgo-toothed beaked whale, Mesoplodon ginkgodens DD
        
        Deraniyagala's beaked whale, Mesoplodon hotaula 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: Globicephala
      - Short-finned pilot whale, Globicephala macrorhynchus LR/cd
    - Genus: Feresa
      - Pygmy killer whale, Feresa attenuata DD
    - Genus: Orcinus
      - Orca, Orcinus orca LR/cd

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.
^ Miller, Cara (14 February 2006). Current State of Knowledge of Cetacean Threats, Diversity and Habitats in the Pacific Islands Region. WDCS Australasia Inc. p. 98.
^ "Secretariat of the Pacific Regional Environment Programme(SPREP)" (PDF). Pacific Islands Regional Species Programme 2008-2012. 2008. Retrieved 9 October 2013.
^ Miller, Cara (1 July 2009). Current State of Knowledge of Cetacean Threats, Diversity and Habitats in the Pacific Islands Region (PDF). WDCS Australasia Inc. pp. 49–50.
^ Murase, H & Temoai, I & Kirata, Taratau & Finkaso, S & Yasunaga, Genta & Pastene, L.A. (2014). "A note on cetaceans off Kiribati and Tuvalu from a research cruise in October 2010". Journal of Cetacean Research and Management. 13: 153–158.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ "Archived copy" (PDF). Archived from the original (PDF) on 2016-03-04. Retrieved 2016-09-20.{{cite web}}: CS1 maint: archived copy as title (link)
^ Miller E.C. (2007). "Current State of Knowledge of Cetacean Threats, Diversity, and Habitats in the Pacific Islands Region" (pdf). Whale and Dolphin Conservation Society Australasia. p. 44. Retrieved 2 January 2016.
^ "PBS - the Voyage of the Odyssey - Track the Voyage - Kiribati". PBS.

References

Murase, H & Temoai, I & Kirata, Taratau & Finkaso, S & Yasunaga, Genta & Pastene, L.A. (2014). "A note on cetaceans off Kiribati and Tuvalu from a research cruise in October 2010". Journal of Cetacean Research and Management. 13: 153–158.{{cite journal}}: CS1 maint: multiple names: authors list (link)
"The IUCN Red List of Threatened Species: Mammals of Kiribati". 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.