''Rissoina deshayesi'' is a species of minute

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk or

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

in the family

Rissoinidae Rissoinidae is a large family of very small and minute sea snails with an operculum, marine gastropod mollusks, in the clade Littorinimorpha. Several genera that were previously part of Rissoinidae have been assigned to the Zebinidae Zebin ...

Description

The height of the shell attains 5.5 mm

Distribution

This species occurs in the Indian Ocean off

Réunion Réunion (; french: La Réunion, ; previously ''Île Bourbon''; rcf, label= Reunionese Creole, La Rényon) is an island in the Indian Ocean that is an overseas department and region of France. It is located approximately east of the island ...

and the

Aldabra Aldabra is the world's second-largest coral atoll, lying south-east of the continent of Africa. It is part of the Aldabra Group of islands in the Indian Ocean that are part of the Outer Islands of the Seychelles, with a distance of 1,120 k ...

Atol.

References

* Schwartz von Mohrenstern G. (1860-1864). ''über die familie der Rissoiden und insbesondere die gattung Rissoina''. Denkschriften der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften, Wien 19

860 __NOTOC__ Year 860 ( DCCCLX) was a leap year starting on Monday (link will display the full calendar) of the Julian calendar. Events By place Byzantine Empire * June 18 – Byzantine–Rus' War: A fleet of about 200 Rus' vessel ...

pp. 71–188 + 11 pl.; 864 pp. 56 + 4 pl. * Taylor, J.D. (1973). ''Provisional list of the mollusca of Aldabra Atoll.''

External links

* Rissoinidae Gastropods described in 1860 {{Rissoinidae-stub