{{Short description|Species of gastropod}} {{Speciesbox | image = | image_caption = | taxon = Alvania perregularis | authority = Sacco, 1895 |extinct=yes | synonyms_ref = | synonyms = * † ''Alvania (Acinus) mariae var. perregularis'' <small>Sacco, 1895</small> superseded rank * † ''Alvania (Arsenia) perregularis'' <small>Sacco, 1895</small> superseded rank |display_parents= 3 }}
'''''Alvania perregularis''''' is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.<ref name="WoRMS"> MolluscaBase eds. (2024). MolluscaBase. Alvania perregularis Sacco, 1895 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=957103 on 2024-02-08</ref>
;Variety: * † ''Alvania perregularis var. varicosa'' <small>Friedberg, 1923</small> (taxon inquirendum)
==Distribution== Fossils of this species were found in Tortonian strata (Miocene) near Steinbrunn, Austria.
==References== {{Reflist}} * Landau, B. M., Harzhauser, M., İslamoğlu, Y. & da Silva, C. M. (2013). Systematics and palaeobiogeography of the gastropods of the middle Miocene (Serravallian) Karaman Basin, Turkey. Cainozoic Research. 11-13: 1–584.
==External links== * [https://www.biodiversitylibrary.org/item/46676 Sacco, F. (1895). I Molluschi dei terreni terziarii del Piemonte e della Liguria. Parte XVIII. (Melaniidae, Littorinidae, Fossaridae, Rissoidae, Hydrobiidae, Paludinidae e Valvatidae). Torino: Carlo Clausen. 51 pp., 1 p] * [https://core.ac.uk/download/pdf/35118095.pdf 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] * [https://doi.org/10.23928/foldt.kozl.2023.153.1.19 Kovács, Z.; Stein, G. (2023). Middle Miocene Rissooidea (Caenogastropoda) of Letkés (Hungary). Földtani Közlöny. 153(1): 19-34]
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perregularis Category:Gastropods described in 1895 Category:Taxa named by Federico Sacco
{{Alvania-stub}} {{paleo-gastropod-stub}}