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Taxon profile

species

Cerithideopsis costata (da Costa, 1778)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  family Potamididae - Horn Shells »  genus Cerithideopsis

Scientific synonyms

Cerithidea costata E. M. da Costa, 1778
Cerithidea ambiquum C. B. Adams, 1845
Scala (Opalia) discobolaria Dall, 1889
Scala discobolaria
Cerithidea lafondi Michaud, 1829
Cerithidea petitii Schramm, 1869
Cerithidea pupoidea Morch, 1876
Cerithidea salmacidum Morelet, 1849

Images

Cerithideopsis costata

Author: Clench, W.J. & Turner, R.D.

Cerithideopsis costata

Author: Petuch & Myers

Cerithideopsis costata

Author: Rehder, H.A.

Taxon in country check-lists*

* List of countries might not be complete

Description

As Scala discobolarium:

Shell small, whitish, acute with eight rather rapidly enlarging whorls exclusive of the (lost) nucleus; suture well marked, somewhat undulate; whorls well rounded, with a brown basal disk the edge of which is usually covered by the suture; axial sculpture of (on the last whorl 14) strong rounded low ribs with wider interspaces, and obvious incremental lines in the interspaces; spiral sculpture of (on the last whorl five or six) sharp narrow grooves, with wider interspaces, which also cut the ribs; on the basal disk there is a relatively smooth border cut by a feeble median stria, inside this border there are five or six spiral grooves pretty close together; the shell is imperforate and the aperture roughly quadrate; the ribs arc not continuous up the spire. Length, 7.5; diameter, 3.5 mm. U. S. Nat. Mus. Cat. No. 333461.
Off Fernandina and Georgia, two specimens.
This has a general resemblance to E. lavaratum but the sculpture is different and the basal disk not smooth as in that species. The original type of this species was in bad order and the diagnosis of a more perfect specimen is now furnished.
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 Cerithidea costata (Costa, 1778)]
Data retrieved on: 23 November 2013

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