Also known as Chinese White Dolphin.
Once this species was considered as a widespread but highly variable species in Indian as well as Pacific Ocean. Many recent morphological and molecular studies have confirmed that the species is infact a species complex and some of its distinct populations are now treated as separate species. Genus Sousa (Humpback Dolphins) now contains 4 species viz. S. chinensis (Indo-Pacific), plumbea (Indian Ocean), sahulensis (Australian) and teuszii (Atlantic).