Alvania zetlandica is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1]

Alvania zetlandica
Shell of Alvania zetlandica (specimen at the Natural History Museum, Rotterdam)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Rissoidae
Genus: Alvania
Species:
A. zetlandica
Binomial name
Alvania zetlandica
(Montagu, 1815)
Synonyms[1]
  • Alvinia zetlandica Montagu, 1815
  • Alvania (Taraniellia) zetlandica (Montagu, 1815)
  • Manzonia zetlandica (Montagu, 1815)
  • Rissoa canaliculata Philippi, 1844 (dubious synonym)
  • Rissoa carinata Aradas, 1847
  • Rissoa cyclostoma Récluz, 1843 (incorrect subsequent spelling)
  • Rissoa cyclostomata Récluz, 1843 (dubious synonym)
  • Rissoa scalariformis Metcalfe in Thorpe, 1844
  • Taramellia zetlandica (Montagu, 1816) superseded combination
  • Turbo zetlandicus Montagu, 1815 (basionym)

Description

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The length of the shell varies between 2.5 mm and 5 mm.

The imperforate shell is solid, opaque and whitish. It is cancellated and almost muricated by subequal longitudinal and spiral distant lirae. The shell contains seven whorls, angularly shouldered above and with a deep suture. The longitudinal sculpture is evanescent on the lower part of the body whorl, where the spiral sculpture becomes more prominen. The outer lip is thickened. [2]

Distribution

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This species occurs in European waters (also off the Cape Verde), the Mediterranean Sea and arctic waters of Canada.

Fossils were found in Pleistocene strata near Messina and in Pliocene strata near Savona, Italy.

References

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  • Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda
  • Landau B.M., Ceulemans L. & Van Dingenen F. (2018). The upper Miocene gastropods of northwestern France, 2. Caenogastropoda. Cainozoic Research. 18(2): 177-368.
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