{{Short description|Species of gastropod}} {{Speciesbox | image = | image_caption = | taxon = Alvania canonica | authority = (Dall, 1927) | synonyms_ref = | synonyms = * ''Rissoa (Cingula) canonica'' <small>Dall, 1927</small> (basionym) * ''Rissoa canonica'' <small>Dall, 1927</small> (Alvania accepted as genus) |display_parents= 3 }}
'''''Alvania canonica''''' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.<ref name="WoRMS"> MolluscaBase eds. (2024). MolluscaBase. Alvania canonica (Dall, 1927). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=532369 on 2024-01-18</ref>
==Description== The length of the shell attains 2.5 mm, its diameter 1.4 mm.
(Original description) The small, white shell is smooth and opaque. It has four well-rounded whorls, including a smooth, not differentiated, protoconch and separated by a well-marked but not deep suture. The sculpture only consists of more or less feeble incremental lines. The base of the shell is evenly rounded and imperforate. The aperture is subovate, not oblique. The margin is simple, slightly thickened, not complete in the young but in the adult united by enamel over the body <ref> [https://www.biodiversitylibrary.org/page/15670453 Dall, W. H. (1927). Small shells from dredgings off the southeast coast of the United states by the United States Fisheries Steamer "Albatross", in 1885 and 1886. Proceedings of the United States National Museum. 70(2667): 1-134] {{source-attribution}} </ref>
==Distribution== This marine species occurs in the Atlantic Ocean off Georgia, USA.
==References== {{Reflist}}
==External links== *
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canonica Category:Gastropods described in 1927