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Taxon profile

species

Imbricaria bacillum (Lamarck, 1811)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Mitridae - Miters »  genus Imbricaria

Scientific synonyms

Ziba bacillum J. B. Lamarck, 1811
Cancilla philippinarum A. Adams, 1853
Cancilla strigillata Sowerby, 1874

Images

Imbricaria bacillum

Author: Cernohorsky, W.O.

Imbricaria bacillum

Author: Jan Delsing

Taxon in country check-lists*

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Description

Shell up to 35.0 mm in length, elongate-fusiform, spire pointed, teleoconch of 9-10 convex, subangulate whorls, protoconch of 2-2.5 glassy-brown, embryonic whorls. Post-embryonic whorls with 3-4 spiral cords, penultimate whorl with 3-5 cords and body whorl with 12-17 cords; the cords are variable, sometimes narrow and angulate or lower and closer set, more rounded and separated by a groove. Interspaces are deep or shallow, cancellated with numerous, finely incised axial grooves which are either confined to interspaces or override cords, and smaller, intermediate spiral threads are occasionally present. Aperture longer than the spire, narrow, smooth within, outer lip thickened and bluntly crenulate on edge, columella with 5-6 oblique folds. Variable in color but usually grayish-white and marbled with irregular, dark greenish-brown axial streaks and blotches, spiral ridges lined with interrupted orange-brown or reddish-brown spiral lines, edge of outer lip white, interior of aperture dark grayish-brown. Periostracum thin and brown.
Cernohorsky, W.O., 1991. The Mitridae of the World. Part II. The Subfamily Mitrinae Concluded and Subfamilies Imbricariinae and Cylindromitrinae..

Distribution

Range - From the Andaman Islands to the Philippines and Samoa Islands. Intertidal and subtidal, in clean and muddy sand, often among weed.
Cernohorsky, W.O., 1991. The Mitridae of the World. Part II. The Subfamily Mitrinae Concluded and Subfamilies Imbricariinae and Cylindromitrinae..
Author: Jan Delsing

Similar species

Imbricaria astyagis (Dohrn, 1860)

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Ziba bacillum Lamarck, 1811]
Data retrieved on: 23 November 2013

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