Diaphanidae is a family of small marine gastropod mollusks belonging to the order Cephalaspidea, commonly known as headshield slugs and bubble snails.

This family is characterized by its members’ delicate, often translucent shells and their adaptation to a variety of marine environments.

The family Diaphanidae falls under the class Gastropoda, subclass Heterobranchia, and order Cephalaspidea.

[1] Members of the Diaphanidae family typically possess small, fragile shells that are often globular in shape.

Diaphanidae species are found in a wide range of marine environments, from shallow coastal waters to deeper oceanic regions.