Dr. James G. Mead. Vertebrate Zoology, National Museum of Natural History, Washington, DC 20560
Alfred L. Gardner. Curator of North American mammals and Chief of Mammal Section, National Biological Service, Smithsonian Institution, National Museum of Natural History, Washington, DC, USA
Wilson, Don E., and DeeAnn M. Reeder, eds. 1992-01-01. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. Smithsonian Institution Press. Washington, DC, USA. xviii + 1207. 1-56098-217-9. Corrections were made to text at 3rd printing.
Mead, James G., and Robert L. Brownell, Jr. / Wilson, Don E., and DeeAnn M. Reeder, eds. 2005-10-01. Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd ed., vol. 1. Johns Hopkins University Press. Baltimore, Maryland, USA. 723-743. 0-8018-8221-4. .
Best, Robin C., and Vera M. F. da Silva 1993-04-23. Mammalian Species, no. 426. . . 1-8. . .
Rice, Dale W. 1998-01-01. Special Publications of the Society for Marine Mammals, no. 4. The Society for Marine Mammalogy. Lawrence, Kansas, USA. ix + 231. 1-891276-03-4. .
Mead & Brownell, Jr., in Wilson & Reeder, eds. (2005): Comments: Reviewed by Pilleri and Gihr (1980a)