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Taxon profile

species

Epitonium apiculatum (Dall, 1889)

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

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Description

Shell white, with three smooth nuclear whorls, then three whorls each with 15-20 close low even varices, then two whorls with about ten strong high hardly reflected varices; interspaces on the early three whorls strongly, afterward less strongly spirally grooved, the interspaces on the last two whorls quite smooth; shell imperforate, lip broad, not dentate behind, obsolete on the body whorl, and produced and somewhat scooped out anteriorly, the inner angle of this edge making a narrow fasciole around the axis. Lon. 5.0 mm, 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)

Interchangeable taxa

This interesting little shell presents certain analogies with E. multistriata Say. It is much smaller and more turbinate, the spiral sculpture and the numerous varices exist on fewer whorls, the spiral sculpture fails entirely on the later whorls, and the varices are more erect and lamellar, and the suture less dis¬tinct than in E. multistriata of the same length. The fasciole is quite absent in the last mentioned form, but they both agree in having more varices and stronger striae on the early whorls than on later ones.

Distribution

Off the coast of North Carolina
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 apiculatum Dall, 1889]
Data retrieved on: 23 November 2013

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