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Characteristics, distribution and ecology
Taxonomische classification
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Müller, 1776

External shell fragile, oval, unable to accommodate the animal during defensive retraction; several whorls; operculum absent.
Cephalic shield with inconspicuous rounded wing-like antero-lateral expansions. Parapodia large, natatory, meeting over the shell mid-dorsally. Gill present in the mantle cavity.
Gizzard with numerous plates; radula n .1.n .

Source: Thompson, 1988.

The following species occurs in the region:

Akera bullata

Genus Akera