👉 Cryptoxyleborus is a type of crustacean, commonly known as a crabs or snails, that are found in freshwater and marine environments. They have eight arms, each with four claws, and their bodies can be both flat and pointed. Their shells are usually composed of hard, protective exoskeletons made of calcium carbonate. Cryptoxyleborus is an important food source for many species of fish and other aquatic organisms.