{{Short description|Species of gastropod}} {{Use dmy dates|date=January 2021}} {{Speciesbox | image = Profundisepta profundi (10.5852-ejt.2021.785.1605) Figure 6 (cropped).png | image_caption = | taxon = Profundisepta profundi | authority = (Jeffreys, 1877) | synonyms_ref = <ref name="WoRMS" /> | synonyms = *''Fissurisepta profundi'' <small>(Jeffreys, 1877)</small> *''Puncturella profundi'' <small>Jeffreys, 1877</small> (basionym) }}

'''''Profundisepta profundi''''' is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.<ref name="WoRMS">{{WRMS species|180870|''Profundisepta profundi'' (Jeffreys, 1877)||25 January 2011}}</ref>

==Description== The shell size varies between 3&nbsp;mm and 6&nbsp;mm,{{citation needed|date=July 2024}} and features a hole at or near the top of the shell.<ref name=":0"/> The height of the shell is shorter than its width and a sculpture of granular riblets radiate from the apex, both of which help distinguish the species from the related ''P. alicei'', which has a smooth shell taller than it is wide.<ref name=":0">''The Mollusca of Galicia Bank'', p. 30</ref>

Mosquera et al. (1981) and Mosquera (1983) misidentified a ''Puncturella agger'' specimen as belonging to this species (then called ''Puncturella profundi'').<ref>''The Mollusca of Galicia Bank'', p. 35</ref> While ''P. agger'' shares the radial rows of granules with ''Profundisepta profundi'', it is distinct in that there is a slit, rather than a hole, near the top of the shell, stretching from the apex to the anterior edge.<ref name=":0"/>

==Distribution== This species is distributed in the Northern Atlantic Ocean along Iceland and Greenland.

==References== {{Reflist}}

===Bibliography=== * Mayhew, R. and F. Cole. 1994 MS. ''A taxonomic discussion and update of shell-bearing marine molluscs recorded from NW Atlantic North of Cape Cod (excluding Greenland), and Canadian Arctic Archipeligo'' * 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.&nbsp;180–213 * [https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1605/5667 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]

==External links== * {{Gastropods.com|key=3|id=21743|title=''Profundisepta profundi''|access-date=25 January 2011}}

{{Taxonbar|from=Q3176721}}

{{DEFAULTSORT:Profundisepta Profundi}} Category:Fissurellidae Category:Gastropods described in 1877 Category:Taxa named by John Gwyn Jeffreys

{{Fissurellidae-stub}}