genus Trionyx

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Noun1.genus Trionyx - type genus of the Trionychidaegenus Trionyx - type genus of the Trionychidae  
reptile genus - a genus of reptiles
family Trionychidae, Trionychidae - soft-shelled turtles
spiny softshell, Trionyx spiniferus - river turtle of western United States with a warty shell; prefers quiet water
smooth softshell, Trionyx muticus - river turtle of Mississippi basin; prefers running water
References in periodicals archive ?
The bone is tentatively referred to the genus Trionyx, for it does not seem wise to assign this imperfect bony plate to the generic level without some reservation.
The genus Trionyx (?Apalone) is known from as early as the Lower Cretaceous (Carroll, 1987).