Cerithidium

Cerithidium is a genus of sea snails, marine gastropod mollusks in the family Cerithiidae.

The genus has been used as valid for Indo-Pacific species following Hasegawa (1998), on the grounds that it is older than Clathrofenella Kuroda & Habe, 1952. However, the Mediterranean type species is a Bittium, for which reason this generic assignment should be revised. The opinion of Hasegawa (1998) and van Aartsen (2006) is followed here

Species
Species within the genus Cerithidium include:
 * Cerithidium actinium Rehder, 1980
 * Cerithidium australiense Thiele, 1930
 * Cerithidium cerithinum (Philippi, 1849)
 * Cerithidium californica
 * Cerithidium diplax (Watson, 1886)
 * † Cerithidium fragrans Barnard, 1963
 * Cerithidium fuscum (A. Adams, 1860)
 * Cerithidium liratum Thiele, 1930
 * † Cerithidium perminimum (de Boury, 1900)
 * Cerithidium perparvulum (Watson, 1886)
 * † Cerithidium plebeium Lozouet, 1998
 * Cerithidium submamillatum (De Rayneval & Ponzi, 1854)
 * Species brought into synonymy:
 * Cerithidium pusillum (Jeffreys, 1856) : synonym of Bittium submammillatum (de Rayneval & Ponzi, 1854) synonym of Cerithidium submammillatum (De Rayneval & Ponzi, 1854)
 * Cerithidium reticulatum (A. Adams, 1860) : synonym of Cerithidium fuscum (A. Adams, 1860)