Family Platanistidae Gray, 1846 . Zool. Voy. H.M.S. "Erebus" and "Terror", 1:25.

SYNONYMS: Iniidae, Lipotidae, Pontoporiidae, Stenodelphinidae, Susuidae .

COMMENTS: See Barnes et al. (1985) and Heyning (1989a) for alternative classifications. We use one family for river dophins due to the lack of consensus regarding the composition of the individual family group names.