platanistidae

English Thesaurus

1. river dolphins (noun.animal)

hypernym	:	mammal family,
definition	:	a family of mammals (noun.animal)

member holonym	:	river dolphin,
definition	:	any of several long-snouted usually freshwater dolphins of South America and southern Asia (noun.animal)

member meronym	:	odontoceti, suborder odontoceti,
definition	:	toothed whales: dolphins; porpoises; sperm whales; beaked whales (noun.animal)