Description

Also known as Blue Velvet Sponge Snail, Five-fingered Sea Snail, Hiby's Coriocella, Hiby's Sea Snail, Maldives Sponge Snail, Maldivian Lamellarid, Maldivian Sponge Snail, Velutinidae hibyae. Velvet Blue Sponge Snail, Velvet Snail.

Found singly or in pairs, amongst rubble and sandy areas, of coral and rocky reefs.
They feed on compound ascidians.
Length - 10cm
Depth - 5-20m
Widespread Indian Ocean

The shell of these animals is very thin and delicate, and internal, completely covered by the mantle (which has fused lobes) so the appearance of these animals more closely resembles that of sea slugs rather than sea snails Ref: https://en.wikipedia.org/wiki/Velutinidae