Cephalorhynchus eutropia Gray, 1846 . Zool. Voy. H.M.S. "Erebus" and "Terror", I:pl. 34.
TYPE LOCALITY: None given, listed as Pacific Ocean, off the coast of Chile by Gray (1850:112) .
DISTRIBUTION: Chile: coastal waters between Valparaiso and Navarino Island, Tierra del Fuego.
STATUS: CITES - Appendix II; IUCN - Insufficiently known.
SYNONYMS: albiventris, obtusata .
COMMENTS: Reviewed by Goodall et al. (1988). Tursio ? panope is not a synonym (see Lagenorhynchus obscurus).