''Margarites pribiloffensis'', common name the Pribiloff margarite, 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 ...

Margaritidae Margaritidae 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).Bouchet, P. (2012). Margaritidae. Accessed through: World Register ...

.Rosenberg, G. (2012). ''Margarites pribiloffensis''. Accessed through:

World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialist ...

at http://www.marinespecies.org/aphia.php?p=taxdetails&id=528730 on 2012-09-01

Description

The height of the shell attains 8 mm, its diameter 8.5 mm. The small, solid shell has a trochiform shape. It is pale straw color, with a small glassy nucleus and about 5½ subsequent well rounded

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 suture is distinct, and slightly appressed. The surface is dull, with fine incremental lines crossed by extremely fine spiral striae. The base is well rounded with a deep, not funicular umbilicus. The simple

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 rounded. The outer lip produced at the suture and united with the columella by a thin glaze of enamel over the body. The inner lip is a little thickened, not reflected. The operculum is brownish with eight or more turns.Dall (1919) ''Descriptions of new species of Mollusca from the North Pacific Ocean''; Proceedings of the U.S. National Museum, vol. 56 (1920)
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Distribution

This species occurs in arctic waters.

References

External links

Biodiversity Heritage Library (3 publications)

Encyclopedia of Life

USNM Invertebrate Zoology Mollusca Collection

ITIS

World Register of Marine Species
{{Taxonbar, from=Q3738926 pribiloffensis Gastropods described in 1919