''Eucithara striatella'' is a small

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 in the family Mangeliidae.WoRMS (2009). Eucithara striatella (E. A. Smith, 1884). In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=433760 on 2017-05-22

Description

The length of the shell attains 13.8 mm, its diameter 5.1 mm. The uniform white shell has an oblong-fusiform shape with a narrow base. It contains 7

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 which two smooth conical whorls in the

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...

. The rest are strongly convex with a shallow suture. The 7 axial ribs are high, strong and compressed and are narrower than the intervals, not becoming weak below suture. The ribs are crossed by fine, flattened striae. The inner lip is smooth or with small denticles or weak ridges. The ovate aperture is narrow and measures about half the total length. The columella is straight and shows a few transverse folds. The outer lip is incrassate with 11-12 short plicae. There is massive

varix A varix (pl. varices) is an abnormally dilated vessel with a tortuous course. Varices usually occur in the venous system, but may also occur in arterial or lymphatic vessels. Examples of varices include: * Varicose veins, large tortuous veins usua ...

on the body whorl. The wide

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

is short and straight. Smith E.A. 1884a. ''Diagnoses of new species of Pleurotomidae in the British Museum''. Ann. Mag. Natural History 14: 317-329.
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Distribution

This marine species occurs from the Persian Gulf to southern Mozambique.

References

External links

Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1-1295

Kilburn R.N. 1992. Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 6. Subfamily Mangeliinae, section 1. Annals of the Natal Museum, 33: 461–575
{{Taxonbar, from=Q10278064 striatella Gastropods described in 1884