''Profundisepta profundi'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of sea snail, a marine gastropod

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...

in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Fissurellidae Fissurellidae, common name the keyhole limpets and slit limpets, is a taxonomic family of limpet-like sea snails, marine gastropod molluscs in the clade Vetigastropoda.Rosenberg, G. (2012). Fissurellidae. Accessed through: World Register of ...

, the keyhole limpets.

Description

The shell size varies between 3 mm and 6 mm, and features a hole at or near the top of the shell. The height of the shell is shorter than its width and a

sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...

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.''The Mollusca of Galicia Bank'', p. 30 Mosquera et al. (1981) and Mosquera (1983) misidentified a ''

Puncturella agger ''Puncturella agger'' is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.MolluscaBase eds. (2020). MolluscaBase. Puncturella agger R. B. Watson, 1883. Accessed through: World Register of Mari ...

'' specimen as belonging to this species (then called ''Puncturella profundi'').''The Mollusca of Galicia Bank'', p. 35 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.

Distribution

This species is distributed in the Northern Atlantic Ocean along

Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its ...

and

Greenland Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland is ...

References

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. 180–213
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
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External links

* Fissurellidae Gastropods described in 1877 Taxa named by John Gwyn Jeffreys {{Fissurellidae-stub