''Ilanga aquamarina'' is a

species In biology, a species is the basic unit of 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 the appropriate s ...

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 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 e ...

in the

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

Solariellidae Solariellidae is a family of small sea snails, marine gastropod mollusks in the superfamily Trochoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Gofas, S. (2011). Solariellidae. Accessed through: World Register of ...

.Melvill, JC, 1909, ''Report on the marine Mollusca obtained by Mr. J. Stanley Gardiner, F.R.S., among the Islands of the Indian Ocean in 1905''; Transactions of the Linnean Society, ser.2 v. 13 pp. 65-139, 1 pl.
(described as ''Solariella aquamarina'')

Description

The shell has a depressed conical shape and is deeply umbilicate. It contains six whorls. The three apical whorls are small and thin. The

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An opt ...

is round. The horny operculum has 6-7 spirals. The shell has a slightly fugitive colour of pearly aquamarine or beryl. It is remarkably smooth, the only

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 ...

being the incised radiate sulculi around the umbilicus, and the fine spiral liration of the apical

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). Whorls in nature File:Photograph and axial plane floral ...

s. The simple peristome is remarkably thin and not in the least reflected. This species has all the appearance of an abysmal shell.

Distribution

This marine species occurs off Saya de Malha Bank, West Indian Ocean

References

External links

To World Register of Marine Species
{{Taxonbar, from=Q16983534

aquamarina ''Aquamarina'' is a fungal genus in the class Dothideomycetes. It is a monotypic genus, containing the single marine species ''Aquamarina speciosa'', originally found in North Carolina, and distributed in the Atlantic Coast of the United States ...

Gastropods described in 1909