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Family  Volvatellidae

The animals of this family have fragile coiled external shells, more or less cylindrical, into which the animal can withdraw completely. The shell can be up to 24 mm in length in Volvatella and about 10 mm in Ascobulla. All volvatellids live on the alga Caulerpa in the shallow subtidal.

Four species of this family are recorded from NSW.

Volvatella angeliniana Ichikawa, 1993

Volvatella sp. 1

Volvatella sp. 2

Ascobulla cf. japonica (Hamatani, 1969)

Some species are illustrated on the Sea Slug Forum.