{{Short description|Species of gastropod}} {{Speciesbox | image = Alvania multiquadrata 01.jpg | image_caption = | taxon = Alvania multiquadrata | authority = van der Linden & Wagner, 1989 | synonyms_ref = | synonyms = }}

'''''Alvania multiquadrata''''' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.<ref name="WoRMS">{{WRMS species|141218|''Alvania multiquadrata'' van der Linden & Wagner, 1989|||Gofas, S. (2009). Alvania multiquadrata van der Linden & Wagner, 1989. In: Bouchet, P.; Gofas, S.; Rosenberg, G. World Marine Mollusca database. Accessed through the World Register of Marine Species at <nowiki>http://www.marinespecies.org/aphia.php?p=taxdetails&id=141218</nowiki> on 9 August 2010}}</ref> As a member of the genus ''Alvania'', it is characterized by a robust, often ovate-conical shell featuring intricate sculptural patterns. The specific epithet ''multiquadrata'' refers to the characteristic "quadrate" or square-like lattice pattern created by the intersection of strong axial ribs and spiral cords on the shell's surface. This species is typically found in benthic marine habitats, often associated with rocky substrates or algae in the sublittoral zone. Like other rissoids, ''A. multiquadrata'' plays a role in the marine ecosystem as a micro-grazer, feeding on detritus and epiphytic algae. Its distribution is primarily documented in the Mediterranean Sea and parts of the Eastern Atlantic, where it contributes to the high biodiversity of micromollusk assemblages.<ref>{{Cite web |last=Chamberlain |first=Scott |last2=Vanhoorne. |first2=Bart |date=2017-01-14 |title=worrms: World Register of Marine Species (WoRMS) Client |url=https://doi.org/10.32614/cran.package.worrms |access-date=2026-02-24 |website=CRAN: Contributed Packages}}</ref>

==Description== The length of the shell varies between 1.47&nbsp;mm and 2&nbsp;mm. {{Expand section|date=January 2024}}

==Distribution== This species occurs in the Atlantic Ocean off the Canary Islands.

==References== {{Reflist}}

==External links== * [http://natuurtijdschriften.nl/download?type=document;docid=596908 van der Linden, J.; Wagner, W. M. (1989). Alvania multiquadrata spec. nov. from the Canary Islands. Basteria. 53: 35-37] * [http://www.vliz.be/imisdocs/publications/ocrd/254404.pdf Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213.]

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multiquadrata Category:Gastropods described in 1989

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