Modulus (gastropod)

Modulus
Two views of a beachworn shell of Modulus tectum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Sorbeoconcha
Superfamily:	Cerithioidea
Family:	Modulidae
Genus:	Modulus J. E. Gray, 1840[1]

Modulus is a genus of small sea snails, marine gastropod molluscs in the family Modulidae.^[2]

Species

Species within the genus Modulus include:

• Modulus ambiguus Dautzenberg, 1910
• Modulus bayeri Petuch, 2001
• Modulus bermontianus Petuch, 1994
• Modulus calusa Petuch, 1988
• Modulus carchedonius (Lamarck, 1822)
• Modulus guernei Dautzenberg, 1900
• Modulus kaicherae Petuch, 1987
• Modulus lindae Petuch, 1987
• Modulus modulus (Linnaeus, 1758) - the type species, known as the "button snail"
• Modulus nodosus Macsotay & Campos, 2001
• Modulus pacei Petuch, 1987
• Modulus tectum (Gmelin, 1791)
• Modulus turbinoides (Locard, 1897)

References

1. Gray J. E. (1840). Syn. Cont. Brit. Mus., ed. 42, 147 [n.n.]; 1842, Syn. Brit. Mus., ed. 44, 60.
2. Bouchet, P. & Rocroi, J.-P. (2005). "Classification and Nomenclator of Gastropod Families". Malacologia 47 (1-2).