trionyx spiniferus

English Thesaurus

1. river turtle of western United States with a warty shell; prefers quiet water (noun.animal)

hypernym	:	pancake turtle, soft-shelled turtle,
definition	:	voracious aquatic turtle with a flat flexible shell covered by a leathery skin; can inflict painful bites (noun.animal)

member meronym	:	genus trionyx, trionyx,
definition	:	type genus of the Trionychidae (noun.animal)