Alternative form of soft-shell turtle [Any turtle of the family Trionychidae, such turtles having a carapace that has no scutes and is leathery and pliable at the sides.]

Freshwater turtle with leathery carapace.

Freshwater turtle with flexible shell.

A type of soft-shell turtle (Apalone spinifera) native to Canada, the United States and Mexico, having spiny projections on the leading edge of its carapace.

The (Pelodiscus sinensis) a species of softshell turtle that is native to mainland China (Inner Mongolia to Guangxi, including Hong Kong) and Taiwan, with records of escapees—some of which have established introduced populations—in a wide range of other Asian countries, as well as Spain, Brazil and Hawaii.

The Yangtze giant softshell turtle (Rafetus swinhoei), also known commonly as the Red River giant softshell turtle, the Shanghai softshell turtle, the speckled softshell turtle, and Swinhoe's softshell turtle, is an extremely rare species of turtle in the family Trionychidae.