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Taxon profile

species

Astyris sagenata 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, whitish, with a smooth nucleus of one and a half whorls and about three or four and a half subsequent whorls; suture distinct, undulate, with a space on each side between it and the nearest spiral cord; spiral sculpture of (on the penultimate whorl 5, on the last whorl about 14) equal and equally distributed small cords with much wider interspaces, little swollen where they cross the ribs, and covering the whole shell; axial sculpture of (on the last whorl about 11) rounded narrow ribs with much wider interspaces, crossing the whole whorl, and in the interspaces conspicuous fine incremental lines; aperture rather wide, outer lip sharp with 4 or 5 small pustular denticulations well within the margin; pillar smooth, slightly concave, canal short, a little recurved. Length of shell, 6; of last whorl, 4; diameter, 3 mm. U. S. Nat. Mus. Cat. No. 108312. Off Georgia, 16 specimens.
The specimens obtained have been discolored by their stay on the bottom and are of a brownish color like many of the other specimens obtained from these two localities.
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 sagenata Dall, 1924]
Data retrieved on: 22 November 2013

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