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Taxon profile

species

Astyris stemma Dall, 1927

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

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Description

Shell small, slender, white, with a small blunt white nucleus of about one whorl and five subsequent rather flattish whorls; suture distinct, not deep; axial sculpture of obscure incremental lines; there is no spiral sculpture; in front of the suture the edge of the succeeding whorl is very slightly and narrowly turrited; the base is gradually attenuated; aperture short, semilunate; the outer lip thin, smooth, nearly vertical; the body without glaze, the pillar short and twisted; the axis minutely pervious. Length of shell, 6; of aperture, 2; diameter, 2 mm. U. S. Nat. Mus. Cat. No. 10S003.
Off Fernandina, abundant.
This is more elongated than either of the others.
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 Astyris stemma Dall, 1927]
Data retrieved on: 22 November 2013

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