👉 Benthodesmus is a genus of benthic crustaceans that belong to the family Chondrichthyes (or "crustacean shells"). These crabs have a hard, protective shell called a benthode or a benthod, which they cover with their bodies. Benthodes are found in various marine environments such as estuaries, lakes, and rivers, where they feed on plankton and other small organisms.