Alvania zetlandica

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Alvania zetlandica
Alvania zetlandica 001.jpg
Shell of Alvania zetlandica (specimen at the Natural History Museum, Rotterdam)
Scientific classification OOjs UI icon edit-ltr.svg
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 zetlandicaMontagu, 1815
  • Alvania (Taraniellia) zetlandica(Montagu, 1815)
  • Manzonia zetlandica(Montagu, 1815)
  • Rissoa canaliculataPhilippi, 1844 (dubious synonym)
  • Rissoa carinataAradas, 1847
  • Rissoa cyclostomaRécluz, 1843 (incorrect subsequent spelling)
  • Rissoa cyclostomataRécluz, 1843 (dubious synonym)
  • Rissoa scalariformisMetcalfe in Thorpe, 1844
  • Taramellia zetlandica(Montagu, 1816) superseded combination
  • Turbo zetlandicusMontagu, 1815 (basionym)

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

Contents

Description

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 prominent. The outer lip is thickened. [2]

Distribution

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