Cerithidium

Cerithidium is a genus of sea snails, marine gastropod mollusks in the family Cerithiidae.^[1]

Cerithidium
Shell of † Cerithidium plebeium (holotype at MNHN, Paris)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Superfamily:	Cerithioidea
Family:	Cerithiidae
Genus:	Cerithidium Monterosato, 1884
Type species
Cerithium submammillatum de Rayneval & Ponzi, 1854
Synonyms[1]
Bittium (Cerithidium) Monterosato, 1884 Clathrofenella Kuroda & Habe, 1952

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 ^[1]

Species

Species within the genus Cerithidium include:

• Cerithidium actinium Rehder, 1980^[2]
• Cerithidium australiense Thiele, 1930^[3]
• Cerithidium cerithinum (Philippi, 1849)^[4]
• Cerithidium californica
• Cerithidium diplax (Watson, 1886)^[5]
• † Cerithidium fragrans Barnard, 1963
• Cerithidium fuscum (A. Adams, 1860)
• Cerithidium liratum Thiele, 1930^[6]
• † Cerithidium perminimum (de Boury, 1900)
• Cerithidium perparvulum (Watson, 1886)^[7]
• † 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)