Cyrenoididae

Cyrenoididae is a taxonomic family of saltwater clams, marine bivalve mollusks in the superfamily Cyrenoidea.

Genera
The following genera are recognised in the family Cyrenoididae:
 * Cyanocyclas Blainville, 1818
 * Cyrenoida de Joannis, 1835 (syn. Cyrenella Deshayes, 1836)
 * Geloina J. E. Gray, 1842
 * Polymesoda Rafinesque, 1820