Cymatioa Berry, 1964

Valentich-Scott, Paul & Goddard, Jeffrey H. R., 2022, A fossil species found living off southern California, with notes on the genus Cymatioa (Mollusca, Bivalvia, Galeommatoidea), ZooKeys 1128, pp. 53-62 : 53

Cymatioa Berry, 1964

Crenimargo Berry, 1963, not Cossmann, 1902. Type species (monotypy): Crenimargo electilis Berry, 1963. Recent, eastern Pacific.

Cymatioa Berry, 1964, new name for Crenimargo Berry, not Cossmann.

Description.

Shell ovate; subequilateral; exterior surface finely punctate; sculpture of sparse, broad, low, radial ribs; ventral margin undulate; right valve with one anterior cardinal tooth; left valve with two anterior cardinal teeth.

Commensal relationships.

Baldwin (1990) reported Cymatioa electilis from Nayarit, Mexico, 20 cm deep and byssally attached to the walls of the burrows of the ghost shrimp, Axiopsis serratifrons (Milne-Edwards, 1873).

Discussion.

Huber (2015) suggested a number of species that might fall within Cymatioa based on their punctate sculpture and undulate ventral margin. While the type species of Cymatioa was described from Colima, Mexico, the species he included in this genus are distributed in tropical locations around the globe.