Alvania zetlandica

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

Alvania zetlandica
Shell of Alvania zetlandica (specimen at the Natural History Museum, Rotterdam)
Scientific 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
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Récluz, 1843 (dubious synonym) Rissoa scalariformis Metcalfe in Thorpe, 1844 Taramellia zetlandica (Montagu, 1816) superseded combination Turbo zetlandicus Montagu, 1815 (basionym)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

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.

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

• 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.

External links

• Montagu G. (1816). An account of some new and rare marine British shells and animals. Transactions of the Linnean Society of London. 11(2): 179-204, pls 12-14
• Philippi, R. A. (1844). Enumeratio molluscorum Siciliae cum viventium tum in tellure tertiaria fossilium, quae in itinere suo observavit. Vol. 2.. Halle (Halis Saxorum): Eduard Anton. iv + 303 pp., pls 13-28.
• Aradas A. (1847). Descrizione delle conchiglie fossili di Gravitelli presso Messina. Atti dell'Accademia Gioenia di Scienze Naturali (2) 4: 57-88
• Récluz, C. A. (1843). Catalogue descriptif de plusieurs nouvelles espèces de coquilles de France suivi d'observations sur quelques autres. Revue zoologique, par la Société Cuvierienne. 6: 5-12, 104-112, 228-238, 257-261
• Thorpe C. (1844). British marine conchology; Being a descriptive catalogue, arranged according to the Lamarckian system, of the salt water shells of Great Britain. London: Edward Lumley. l + 267 pp.
• Serge GOFAS, Ángel A. LUQUE, Joan Daniel OLIVER,José TEMPLADO & Alberto SERRA (2021) - The Mollusca of Galicia Bank (NE Atlantic Ocean); European Journal of Taxonomy 785: 1–114
• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
• Thanasis Manousis, The Marine Mollusca of Greece: an up-to-date, systematic catalogue, documented with bibliographic and pictorial references
• Glibert, M. (1962). Les Mesogastropoda fossiles du Cénozoïque étranger des collections de l'Institut Royal des Sciences Naturelles de Belgique. Première partie. Cyclophoridae à Stiliferidae (inclus). Institut Royal des Sciences naturelles de Belgiques, Mémoires. Deuxième série. 69: 1-305