Lagenorhynchus australis (Peak, 1848) . Mammalia in Repts. U.S. Expl. Surv., 8:33, pl. 6.

TYPE LOCALITY: "South Atlantic Ocean, off the coast of Patagonia", Argentina, 1 days sail north of the Straits of LeMaire .

DISTRIBUTION: Chile to Argentina: Valparaiso to Commodoro Rivadavia and Falkland Isis: Cold-temperate waters. One published (photograph) sighting in the tropical waters of the South Pacific, Cook Isis (Leatherwood et al. (1991).

STATUS: CITES - Appendix II.

SYNONYMS: amblodon, chilöensis.

COMMENTS: Included in cruciger by Bierman and Slijper (1947) and Hershkovitz (1966a:67), but considered a distinct species by Fraser (1966), Rice (1977), Brownell (1974), and Mitchell (1975).