Coelotrochus

Coelotrochus
	Drawing with an umbilical view of a shell of Coelotrochus tiaratus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Trochidae
Genus:	Coelotrochus; Fischer, 1880 [1]
Type species
	Coelotrochus tiaratus Quoy, H.E.T. & J.P. Gaimard, 1834;
Synonyms
	Anthora Gray, 1857; Chlorostoma (Neozelandia) Cossmann, 1918; Thorista Iredale, 1915; Thoristella Iredale, 1915; Trochus (Anthora) Gray, 1857; Trochus (Coelotrochus) P. Fischer, 1879; Trochus (Thorista) Iredale, 1915;

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

^ ^a ^b 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
^ Suter H. (1913-1915), Manual of New Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915

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

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[WoRMS-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] Suter H. (1913-1915), Manual of New Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915

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