Coelotrochus Explained

Coelotrochus is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails.^[1]

Description

The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis.^[2]

Distribution

This marine genus is endemic to New Zealand.

Species

Species within the genus Coelotrochus include:

• † Coelotrochus avarus (Suter, 1917)
• † Coelotrochus bibaphus (Bartrum & Powell, 1928)
• † Coelotrochus browni (C. A. Fleming, 1943)
• Coelotrochus carinatus (B. A. Marshall, 1998)
• Coelotrochus carmesinus (Webster, 1908)
• Coelotrochus chathamensis (Hutton, 1873)
• Coelotrochus davegibbsi (B. A. Marshall, 1998)
• † Coelotrochus fossilis (Finlay, 1926)
• † Coelotrochus gracilis (Laws, 1936)
• Coelotrochus oppressus (B. A. Marshall, 1998)
• Coelotrochus polychromus (B. A. Marshall, 1998)
• Coelotrochus rex (B. A. Marshall, 1998)
• Coelotrochus tiaratus (Quoy & Gaimard, 1834)
• Coelotrochus viridis (Gmelin, 1791)

References

• Nomenclator Zoologicus info
• Image of the holotype of the species, N.Z. government site
• Williams S.T., Donald K.M., Spencer H.G. & Nakano T. (2010) Molecular systematics of the marine gastropod families Trochidae and Calliostomatidae (Mollusca: Superfamily Trochoidea). Molecular Phylogenetics and Evolution 54:783-809.

External links

• Iredale T. (1915). A commentary on Suter's Manual of the New Zealand Mollusca. Transactions and Proceedings of the New Zealand Institute. 47: 417-497

Notes and References

1. Bouchet, P. (2010). Coelotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512304 on 2012-06-20
2. https://archive.org/details/manualofnewzeala00sute Suter H. (1913-1915), Manual of New Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915