Alvania cimicoides

Alvania cimicoides
	Shell of Alvania cimicoides
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Rissooidea
Family:	Rissoidae
Genus:	Alvania
Species:	A. cimicoides
Binomial name
	Alvania cimicoides; (Forbes, 1844)
Synonyms
	Alvania (Acinopsis) sculpta (R. A. Philippi, 1844) junior subjective synonym; Alvania (Turbona) sculpta Philippi, 1844; Rissoa cimicoides Forbes, 1844 (original combination); Rissoa cimicoides var. minima Jeffreys, 1867; Rissoa intermedia Aradas, 1847; Rissoa sculpta R. A. Philippi, 1844 junior subjective synonym; Turbona hispidula fuscoapicalis F. Nordsieck, 1974 ·;

Alvania cimicoides is a species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.^[2]

Description

The length of the shell varies between 3.4 mm and 5 mm.

The solid shell is opaque, yellowish or fulvous brown. It is sometimes bifasciate, with rather broad longitudinal riblets, vanishing below, crossed by spiral unduluting lirae, forming intersectional nodules. The shell contains 7-8 whorls, somewhat flattened in the middle, the last dilated. The suture is channeled. The outer lip is varicose.^[3]

Distribution

This species occurs in the Arctic Ocean off Greenland, in the Atlantic Ocean from Norway to the Azores. It is also circumlittoral in the Mediterranean Sea (Spain, Corsica, Greece, Turkey).

Fossils have been in Pliocene strata in Cotentin, France.

References

^ Forbes E. (1844). Report on the Mollusca and Radiata of the Aegean sea, and on their distribution, considered as bearing on geology. Reports of the British Association for the Advancement of Science (1843): 130-193. World Register of Marine Species, Retrieved 08/09/10.
^ Alvania cimicoides (Forbes, 1844). Gofas, S. (2009). Alvania cimicoides (Forbes, 1844). In: Bouchet, P.; Gofas, S.; Rosenberg, G. World Marine Mollusca database. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141168 on 9 August 2010 .
^ G.W. Tryon (1884), Manual of conchology, structural and systematic : with illustrations of the species; Academy of Natural Sciences ser. 1, vol. 9 This article incorporates text from this source, which is in the public domain.

Nordsieck, F. (1974). Molluschi dei fondali della platea continentale fra la Corsica e la Sardegna. La Conchiglia. 61: 11-
de Kluijver, M. J.; Ingalsuo, S. S.; de Bruyne, R. H. (2000). Macrobenthos of the North Sea [CD-ROM]: 1. Keys to Mollusca and Brachiopoda. World Biodiversity Database CD-ROM Series. Expert Center for Taxonomic Identification (ETI): Amsterdam, The Netherlands. ISBN 3-540-14706-3. 1 cd-rom.

External links

[1] Forbes E. (1844). Report on the Mollusca and Radiata of the Aegean sea, and on their distribution, considered as bearing on geology. Reports of the British Association for the Advancement of Science (1843): 130-193. World Register of Marine Species, Retrieved 08/09/10.

[WoRMS-2] Alvania cimicoides (Forbes, 1844). Gofas, S. (2009). Alvania cimicoides (Forbes, 1844). In: Bouchet, P.; Gofas, S.; Rosenberg, G. World Marine Mollusca database. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141168 on 9 August 2010 .

[3] G.W. Tryon (1884), Manual of conchology, structural and systematic : with illustrations of the species; Academy of Natural Sciences ser. 1, vol. 9 This article incorporates text from this source, which is in the public domain.

[1]

[2]

[3]