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Taxon profile

species

Epitonium polacium (Dall, 1889)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Caenogastropoda »  family Epitoniidae - Wentletraps »  genus Epitonium

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Description

Shell grayish white, thin, cylindrical with abruptly sharpened apex, twelve pounded whorls and numerous slightly elevated thin sharp varices; nucleus translucent, white, polished, three-whorled; subsequent whorls spirally sculptured with ten to twenty slightly raised extremely fine flattened threads about half as wide as their interspaces, uniformly distributed over the surface and of uniform size; transverse sculpture composed by the fine sharp thin reflected and anteriorly convex varices, numbering about twenty-eight on the last whorl and slightly marked on their concave posterior faces by the extension of the spiral sculpture; whorls and base beautifully rounded; suture distinct but not deep; lip not continuous over the body; line of the varices from one whorl to another in most cases continuous, over the whorl arched forward a little; aperture nearly circular, pillar very thin and not differentiated from the rest of the margin. Lon. 7.25 mm; of last whorl, 2.5 mm; max. lat., 2.5 mm.
Source: Dall, 1889. Reports on the results of dredgings, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U. S. Coast Survey Steamer 'Blake'. (Original description)

Distribution

Caribic. Off Cuba.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Epitonium polacium Dall, 1889]
Data retrieved on: 23 November 2013

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