''Brachystomia eulimoides'' 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 ...

mollusc 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 esti ...

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 ...

Pyramidellidae Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs. The great majority of species of pyrams are micromol ...

, the pyrams and their allies.Gofas, S. (2015). Brachystomia eulimoides (Hanley, 1844). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=491650 on 2015-12-14

Description

The milk-white or yellowish white shell is rather solid, nearly opaque, somewhat glossy. Its length measures 5 mm. It is marked by microscopic spiral striae. The six to seven

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 of the

teleoconch The gastropod shell is part of the body of a gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some ...

are somewhat convex, and rapidly enlarging. The suture is moderate and distinct. The

umbilical Umbilical may refer to: *Umbilical cable *Umbilical cord *Umbilical fold *Umbilical hernia *Umbilical notch *Umbilical vessels **Umbilical artery **Umbilical vein *Umbilical zone *The Umbilical Brothers, two Australian comedic performers, David a ...

chink is very narrow or is lacking. The columellar tooth is strong.Manual of Conchology vol. VIII
G.W. Tryon (1889); p. 346 : ''Odostomia pallida''

Distribution

This species occurs in the following locations: * Azores Exclusive Economic Zone * British Isles * Dorset * European waters (ERMS scope) * Goote Bank * Greek Exclusive Economic Zone * Irish Exclusive economic Zone * Portuguese Exclusive Economic Zone * Spanish Exclusive Economic Zone * United Kingdom Exclusive Economic Zone

Notes

Additional information regarding this species: * Habitat: Known from the nearshore.

References

* Kantor Yu.I. & Sysoev A.V. (2006) ''Marine and brackish water Gastropoda of Russia and adjacent countries: an illustrated catalogue''. Moscow: KMK Scientific Press. 372 pp. + 140 pls
Høisæter, T. (2014). ''The Pyramidellidae (Gastropoda, Heterobranchia) of Norway and adjacent waters. A taxonomic review.'' Fauna norvegica. 34: 7-78

External links

To Biodiversity Heritage Library (30 publications)

To CLEMAM

To Encyclopedia of Life

To World Register of Marine Species

Y.M.T. McFadden and A.A. Myers, The life history and reproductive biology of ''Odostomia eulimoides'' (Gastropoda: Opisthobranchia) on the south coast of Ireland; Journal of the Marine Biological Association of the United Kingdom (1989), 69 : pp 65-80
{{Taxonbar, from=Q3199057 Pyramidellidae Gastropods described in 1844