« Shell subtriangular, shiny, slightly glossy, of a dark red colour with the area near the ventral margin whitish; numerous very thin growth striae; hinge with a small tooth protruding to the left of the umbo, and a large rounded one at the right; posterior muscular print a little oval. » – “ Terze spigolature… Monterosatiane”, Argonauta vol. 7, Roma 1991-1992, p.178.

Synonym cuneata by the same author, who writes: « Shell oblong, white, slightly translucent, with a ferrugineous periostracum; numerous irregular growth striae; umbone hardly prominent… » – Ibid.