Cephalaspidea

The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine gastropod mollusks within the larger clade Euopisthobranchia. Bubble shells is another common name for these families of marine gastropods, some of which have thin bubble-like shells. This clade contains more than 600 species.

species of mollusc

Volvulella is a genus of gastropods belonging to the family Rhizoridae.

Mnestia is a genus of gastropods belonging to the family Mnestiidae.

genus of Gastropoda

Bulloidea is a superfamily of sea snails, or bubble snails, marine gastropod mollusks.

Cylichnoidea is a superfamily of sea snails or bubble snails, marine gastropod molluscs in the order Cylichnidae, the "chalice bubble snails".

Eoscaphandridae is a family of gastropods belonging to the order Cephalaspidea.