''Rissoa membranacea'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of small

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

, a marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

micromollusc A micromollusc is a shelled mollusc which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine molluscs, although in addition, numerous species of land snails and freshwater molluscs also ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Rissoidae Rissoidae is a large family of sea snails. Members of the Rissoidae are very small in size and possess an operculum. Distribution and habitat Rissoidae are found worldwide. They live on sandy or gravel bottoms among algae or marine plants. Th ...

Description

The length of the shell varies between 4 mm and 11 mm.

Distribution

This species occurs in the Atlantic Ocean from Western nOrway to the British Isles; in the Mediterranean Sea in the

Alboran Sea The Alboran Sea is the westernmost portion of the Mediterranean Sea, lying between the Iberian Peninsula and the north of Africa (Spain on the north and Morocco and Algeria on the south). The Strait of Gibraltar, which lies at the west end of the ...

References

* Risso, A., 1826 - Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes-Maritimes. Mollusques, vol. 4, p. 1-439, 12 pls * Arnaud, P. M., 1978. - Révision des taxa malacologiques méditerrannéens introduits par Antoine Risso. Annales du Muséum d'Histoire Naturelle de Nice "1977"5: 101-

External links

Adams, J. (1800). Descriptions of some minute British shells. Transactions of the Linnean Society of London. 5(1): 1-6.

Desmarest A. G. (1814). Description des coquilles univalves du genre Rissoa de M. De Fréminville. Bulletin des Sciences, par la Société Philomatique de Paris. 1814: 7-9, pl. 1.

Risso, A. (1826-1827). Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. [( series). volumes 1-5. Paris, F.G. Levrault. vol. 3. Mammifères. Oiseaux. Poissons / vol. 4. Mollusques. Annélides / vol. 5. Crustacés. Myriapodes, scorpionides, arachnides et acarides. Insectes. Vers intestinaux. Radiaires. Zoophytes
membranacea Gastropods described in 1800">Rissoa">membranacea Gastropods described in 1800 {{Rissoidae-stub