Sars M., 1870
Shell internal, completely enclosed by the mantle, which is produced postero-laterally on the right side to form a pallial exhalant siphon, and posteriorly to form a prominent external pallial lobe or flap.
Cephalic shield produced to form antero-lateral tentacular processes. Antero-lateral propodial wing-like expansions are present, but the metapodium is not forked posteriorly.
The radula formula is 2.1.0.1.2.
Source: Thompson, 1988.
The following species occurs in the region:
Colpodaspis pusillus