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Taxon profile

species

Falsitromina bella A. W. B. Powell, 1951

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Prosiphonidae »  genus Falsitromina

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Falsitromina bella

Author: Powell

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Description

Shell small, ovate, squat, with broadly rounded whorls, evenly sculptured with moderately strong rounded spiral cords and covered with a thin, pale buff epidermis. Whorls 4J, including a blunt, dome-shaped protoconch of 1,5 whorls, the tip smooth, followed by a whorl of weak axial threads, becoming more distinct over the last half-whorl which has the addition of weak spiral threads. First and second post-nuclear whorls with seven rounded spiral cords, penultimate with eight and body-whorl with about thirty, ten of which are on the neck. The whole surface is crowded with dense axial threads which render weakly gemmulate some of the spiral cords of the shoulder. Aperture ovate-pyriform with a short open canal. Outer lip thin, columella straight medially and spirally flexed below. Parietal callus weak, shining white with the spiral sculpture showing through towards the outer edge. Operculum ovate, paucispiral, occupying about half the area of the aperture.
Height 7,4 mm.; diameter 5 mm.
TYPK LOCALITY. Between Falkland Is. and Patagonia
Powell, 1951. Antarctic and Subantarctic Mollusca: Pelecypoda and Gastropoda. (Original description)
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 Falsitromina bella Powell, 1951]
Data retrieved on: 23 November 2013

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