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Alvania cancellata

From Wikipedia, the free encyclopedia

Alvania cancellata
Shell of Alvania_cancellata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Alvania
Species:
A. cancellata
Binomial name
Alvania cancellata
(da Costa, 1778)[1]
Synonyms[2]
  • Acinopsis cancellata (da Costa, 1778)
  • Alvania (Acinopsis) cancellata (da Costa, 1778)
  • Acinopsis cancellina (Locard, 1892)
  • Acinopsis venter F. Nordsieck, 1972
  • Alvania cancellina Locard, 1891 ·
  • Alvania laxa Dautzenberg & H. Fischer, 1896
  • Alvania paupercula (Jeffreys, 1867)
  • Rissoa (Alvania) laxa (Dautzenberg & Fischer, 1896)
  • Rissoa cancellata (da Costa, 1778)
  • Rissoa cancellata var. paupercula Jeffreys, 1867
  • Rissoa crenulata Michaud, 1830
  • Turbo cancellatus da Costa, 1778 (original combination)

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

Description

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The length of the shell varies between 2 mm and 5 mm.

(Described as Rissoa crenulata) The imperforate shell is solid. It is opaque, yellowish white, tinted and indistinctly bifasciate with chestnut. The spire is mucronate. It is longitudinally broadly ribbed and strongly spirally lirate, the intersections forming strong rounded tubercles. The shell contains 6-7 convex whorls. The suture is widely channeled. The aperture is expanded, brownish red and sulcate within, subcanaliculate below. The outer lip is crenulately varicose exteriorly. The columella is tuberculated anteriorly. [3]

Distribution

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This marine species occurs in the Mediterranean Sea (Corsica, Greece), in the Eastern Atlantic Ocean off Guernsey and Cornwall, English Channel, West Africa and off Madeira and the Azores.

Fossils were found in Pleistocene strata near Messina and Palermo, Sicily.

References

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  • Nordsieck, F. (1972). Die europäischen Meeresschnecken (Opisthobranchia mit Pyramidellidae; Rissoacea). Vom Eismeer bis Kapverden, Mittelmeer und Schwarzes Meer. Gustav Fischer, Stuttgart. XIII + 327 pp.
  • Jeffreys, J. G. (1862-1869). British conchology. Vol. 1: pp. cxiv + 341
  • Ávila, S.P.; Cardigos, F.; Santos, R.S. (2004). D. João de Castro Bank, a shallow water hydrothermal-vent in the Azores: checklist of marine Molluscs. Arquipélago (Ciénc. Biol. Mar./Life Mar. Sci.) 21A: 75-80
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