Commerson's dolphins are primarily found in the coastal waters of the southwest Atlantic Ocean near Patagonia, Tierra del Fuego, Cape Horn and the Falklands Islands. They are most commonly seen along the eastern coast of South American between 41˚30' S and 55˚ S latitude, though they have been found as far north as 31˚ S latitude in some areas.
There is also a disjunct population of Commerson's dolphins in the south Indian Ocean near Kerguelen Island. In this area, they range from 48˚30' S to 49˚45' S latitude and are most common around the Golfe du Morbihan and around Heard Island. They are the only common cetacean in these coastal waters.
Biogeographic Regions: neotropical (Native ); indian ocean (Native ); atlantic ocean (Native ); pacific ocean (Native )
- 2004. The Commerson's Dolphin Story. San Diego: Sea World, Inc.
- 2006. Whales, Dolphins, and Other Marine Mammals of The World. United States: University Presses of California.
- 2009. "The Ocean Biogeographic Information System" (On-line). Accessed March 15, 2010 at http://seamap.env.duke.edu/species/tsn/180449.
- Goodall, R. 1994. Commerson's dolphin. Pp. 241-267 in S Ridgway, R Harrison, eds. Handbook of Marine Mammals, Vol. Volume 5: The First Book of Dolphins. San Diego: Academic Press Limited.
- Goodall, R., A. Galeazzi, S. Leatherwood, K. Miller, I. Cameron, R. Kastelein, A. Sobral. 1988. Studies of Commerson's dolphins, Cephalorynchus commersonii, off Tieraa del Fuego, 1976-1984, with a review of information on the speices in the South Atlantic. Pp. 3-70 in R Brownell, Jr., G Donovan, eds. Biology of the genus Cephalorynchus. Reports of the International Whaling Commission (Special Issue 9).
- Leatherwood, S., R. Reeves. 1983. he Sierra Club Handbook of Whales and Dolphins. San Francisco: Sierra Club Books.