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species

Liratilia isolata Dell, 1956

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Columbellidae - Dove Shells »  genus Liratilia

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Liratilia isolata

Author: Dell, R.K.

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Description

Shell small, slender, fusiform, with shouldered whorls, sculptured with axial folds and raised spirals. Spire rather higher than aperture, whorls gradually increasing, shouldered high up, sutures impressed. Whorls 5,5, including an elongate protoconch of 2,5 smooth, polished, white whorls. Whorls 3 in number. Sculptured with broad axial folds running from suture to suture on spire whorls, becoming obsolete on base of body whorl, 14 in number on the body whorl. Spirals consisting of strong, raised, rounded cords which cross the axials. Three major spirals on the spire whorls, with two weaker spirals on the shoulder. On the body whorl the two weaker spirals continue on the shoulder, with 6 strong spirals across the rest of the body whorl and base, 10 somewhat weaker spirals across the neck of the canal. Base somewhat excavated, outlines of neck straight. Aperture narrow, inner and outer lips subparallel, drawn out below into a moderately long canal, twisted backwards towards end. Inner lip narrow, excavated from parietal wall. Columella almost straight, also twisted backwards at base. Height, 4,9 mm. ; diameter, 1,9 mm.
Dell, R.K., 1956. The Archibenthal Mollusca of New Zealand.

Interchangeable taxa

Perhaps closest to Liratilia eremita Murdoch & Suter , but differing in the narrower, more elongate protoconch, fewer spirals on the shoulder and spire whorls and stronger axials.
Author: Jan Delsing

Similar species

Liratilia eremita R. Murdoch & H. Suter, 1906

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Liratilia isolata Dell, 1956]
Data retrieved on: 23 November 2013

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