Clam Shrimp

Also called  Claw Shrimp,   any member of the crustacean order Conchostraca (subclass Branchiopoda), a group of about 200 species inhabiting shallow freshwater lakes, ponds, and temporary pools throughout the world. Clam shrimps are so called because their entire body is contained within a bivalve shell (carapace) that resembles the shell of a small mollusk. Inside the shell the trunk of the animal