CZ EN
SEARCH  

Taxon profile

species

Astyris georgiana Dall, 1927

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

Scientific synonyms

Mitrella georgiana W. H. Dall, 1924

Description

Shell small, translucent white, biconic, with a smooth white inflated nucleus of a whorl and a half, and about four subsequent moderately convex whorls; suture distinct, not appressed, with an elevated thread on its anterior margin; axial sculpture of (on the last whorl 12 to 14) narrow vertical rounded ribs with wider interspaces, crossing the whorls, and rather conspicuous incremental lines; spiral sculpture of (on the spire two, on the last whorl about nine) very distinct equal fine threads, over running the ribs without modulation, with wider interspaces, more close on the base, and fine intercalary striae, chiefly visible in the interspaces and there minutely reticulating the incremental lines; aperture rather narrow, the outer lip hardly thickened except when coincident with a rib, smooth inside; the body and pillar short, the canal hardly differentiated from the aperture. Length of shell, 5; of aperture, 2.5; diameter, 2.5 mm. U. S. Nat. Mus. Cat. No. 108311.
Off Georgia, many specimens.
This species has a vitreous appearance and the wide shallow retic¬ulation is notable.
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 georgiana Dall, 1924]
Data retrieved on: 22 November 2013

Contributions to BioLib

Help us to expand this encyclopedia! If you are logged in, you can add new subtaxa, vernacular and scientific names, texts, images or intertaxon relationships for this taxon.

Comments