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Taxon profile

species

Comitas ensyuensis Shikama & Hayashi, 1977

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Pseudomelatomidae »  genus Comitas

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Comitas ensyuensis

Author: Shikama, T.

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Description

Shell small to medium sized, thin, fusiform and turrated. Spire very high and with 8 volutions of teleoconch. Protoconch small, white lustrous and with 2 volutions. Whorl light yellowish brown, carries many spiral striations. Suture rather deep and shoulder angulated with a white spiral colour band. Posterior sinus shallow, wide and V-shaped. Selenizone wide, depressed and lies very near suture. Axial ridge nodulous on shoulder. Columella narrow, white, lustrous and twisted. Aperture narrow and lanceolate. Siphonal tube long and projected anteriorly with deep canal.
Types: Two shells stored in the writer's collection presented by HAYASHI ; type A, 46.3 mm high and 12 mm wide; type B, 43.7 mm high and 13.6 m wide.
Source: Shikama T. (1977). Descriptions of new and noteworthy Gastropoda from western Pacific and Indian Oceans. (Original description)

Interchangeable taxa

There are 2 types A and B; A has distinct nodules of shoulder and B has relatively weak ones. This species is near kamakurana PILSBRY but is distinguished from it by less and more distinct nodules of shoulder and by white spiral band of it.

Distribution

Japan. Ensyu-nada.
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 Comitas ensyuensis (Shikama & Hayashi, 1977)]
Data retrieved on: 23 November 2013

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