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Mesoplodon stejnegeri

Stejneger's Beaked Whale

Order: Cetacea
Family: Ziphiidae

Image of Mesoplodon stejnegeri
Mesoplodon stejnegeri - female, upper; male, lower
Click to enlarge. (46 kb)

Conservation Status: Data Deficient.

Thirty-one of the 48 sightings of Stejnegers beaked whale have come from Alaskan waters. It is suspected this species favors deep waters, including the Aleutian Trench and the Aleutian Basin, which is some 3,500 m deep, rather than the shallow waters of the Bering Sea. The whales were seen traveling in groups of 5-15; some individuals were large and some were small.  This species is also known as the sabre-toothed beaked whale, hinting at the shape of the adult male's teeth.

Also known as:
Bering Sea Beaked Whale, Sabre-toothed Beaked Whale

Range: up to 5.3 m


True, F.W., 1885.  Contributions to the history of the Commander Islands. No. 5-Description of a new species of Mesoplodon, M. Stejnegeri, obtained by Dr. Leonard Stejneger, in Bering Island, 8:585.  Proceedings of theU.S. National Museum, 8:584-585.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Mesoplodon stejnegeri

Image of Mesoplodon stejnegeri
Click to enlarge. (56kb)