1) Family trionychidae 2) Reptile family 3) Soft-shelled turtles 
The Trionychidae are a taxonomic family of a number of turtle genera commonly known as softshells. They are also sometimes called pancake turtles (although they are distinct from the pancake tortoise). Softshells consist of some of the world`s largest freshwater turtles, though many can adapt to living in highly brackish areas. Members of this fa....
[n] - soft-shelled turtles
family Trionychidae noun soft-shelled turtles