Cystiscidae
Cystiscidae, commonly known as bladder snails, is a family of small, air-breathing, marine snails that belong to the order Pulmonata. They are characterized by their thin, translucent, and often colorful shells, which are typically shaped like an elongated, flattened bladder. Cystiscidae snails are primarily found in intertidal and subtidal zones, often in rocky habitats or among seaweed.
Characteristics
Members of this family exhibit a wide variety of shell forms and colors. Their shells are typically thin and fragile, with a smooth or slightly sculptured surface. They lack an operculum, a structure that closes the shell opening. Cystiscidae snails are also notable for their elongated, cylindrical bodies and their distinctive, siphon-like respiratory structures.
Environments
Cystiscidae snails are primarily found in marine environments, inhabiting intertidal and subtidal zones along coastlines. They often prefer rocky habitats with a good supply of algae and other food sources. They can also be found in seagrass meadows and coral reefs. Their distribution is largely restricted to temperate and tropical regions around the world.