Trionychinae

species of reptile

Apalone is a genus of turtles in the family Trionychidae. The three species of Apalone are native to freshwater habitats in North America; they are the only living softshell turtles from the Americas (other American softshell turtles are only known from fossil remains).

The Trionychinae are a subfamily of turtles in the family Trionychidae.