''Mitrella ocellata'', the white-spotted dove shell, 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), ...

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 ...

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 ...

Columbellidae The Columbellidae, the dove snails or dove shells, are a family of small sea snails, marine gastropod mollusks in the order Neogastropoda.Bouchet, P.; Gofas, S. (2010). Columbellidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marin ...

Description

The size of the shell varies between 6 mm and 14 mm. The small, oblong shell is moderately thick, cylindrical, and smooth. It is fawn colored or red, dotted with small, round, white dots, disposed regularly in quincunxes, or in a network. The

spire A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spire ...

is composed of eleven

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). In nature File:Photograph and axial plane floral diagra ...

s, generally truncated at the summit. The whorls are subconnate, surrounded at their upper part by an articulated band of white and brown. The body whorl is ornamented towards its base with numerous transverse fine striae. The

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

is narrow, of a violet color. The outer

lip The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...

is obtuse, thick, almost straight, interiorly having small folds or teeth in large quantities. The upper extremity forms the commencement of an emargination. All the external surface of this shell is covered by a membranous, reddish, thin periosteum, so transparent, that the colors are seen through it.Kiener (1840). General species and iconography of recent shells : comprising the Massena Museum, the collection of Lamarck, the collection of the Museum of Natural History, and the recent discoveries of travellers; Boston :W.D. Ticknor,1837
(described as ''Buccinum cribrarium'')

Distribution

This marine species has a wide distribution. It has been found in the Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean off the coasts of South America, Africa, and remote islands such as

Ascension Island Ascension Island is an isolated volcanic island, 7°56′ south of the Equator in the Atlantic Ocean, South Atlantic Ocean. It is about from the coast of Africa and from the coast of South America. It is governed as part of the British Overs ...

and

Saint Helena Saint Helena (, ) is one of the three constituent parts of Saint Helena, Ascension and Tristan da Cunha, a remote British overseas territory. Saint Helena is a volcanic and tropical island, located in the South Atlantic Ocean, some 1,874 km ...

References

* Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), ''European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification.'' Patrimoines Naturels. 50: 180–213 {{Taxonbar, from=Q3139343 ocellata Gastropods described in 1791 Taxa named by Johann Friedrich Gmelin