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Taxon profile

species

Mangelia lastica W. H. Dall, 1927

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Mangeliidae »  genus Mangelia

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Description

Shell small, slender, whitish, the aperture about one-third the whole length, with a smooth nucleus of one and a half to two whorls and seven subsequent well rounded whorls; suture distinct, not appressed, the fasciole in front of it flattish and sloping; the sculpture varying in strength in different individuals; usually stronger on the earlier whorls; axial sculpture of numerous protractively oblique narrow ribs with subequal interspaces, flexuous but not prominent (as a rule) on the fasciole and absent from the base, the incremental lines inconspicuous; spiral sculpture of two equal threads just behind the suture, hut not equally obvious in all the specimens, especially the young; in those with strong sculpture there are two or three more or less evident small threads overriding the ribs, but in all young cases the base is smooth, the ribs stopping abruptly; in the fully adult there may be a few obsolete spirals on the base, and a few evident ones on the canal; aperture subovate with a wide and short canal; outer lip protractively arcuate, the anal sinus shallow and wide; the pillar short, attenuated in front, axis impervious. Length, 11; diameter, 4 mm. U. S. Nat. Mus. Cat. No. 107967.
Dall, W.H., 1927. Small shells from dredgings off the southeast coast of the United States by the United States Fisheries Steamer 'Albatross' in 1885 and 1886.

Distribution

USA. Florida. Off Fernandina.
Dall, W.H., 1927. Small shells from dredgings off the southeast coast of the United States by the United States Fisheries Steamer 'Albatross' in 1885 and 1886.
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 Mangelia lastica Dall, 1927]
Data retrieved on: 23 November 2013

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