Taxon profile
species
Eatoniella helga (Bartsch, 1915)
kingdom Animalia - animals » phylum Mollusca - mollusks » class Gastropoda - gastropods » order Littorinimorpha » family Eatoniellidae » genus Eatoniella
ID: 1951131
pID: 748155
Taxonomic rank: 150
Author of the record: Václav Hanzlík
Created: 2022-10-18 18:29:04 - User Václav Hanzlík
Data last updated: 2023-10-16 13:51:18
URL: https://www.biolib.cz/en/taxon/id1951131/
Text function: [[t:1951131;<em>Eatoniella helga</em>]]
[[t:1951131;<em>Eatoniella helga</em>]] (Bartsch, 1915)
Reference: <a href="https://www.biolib.cz/en/taxon/id1951131/"><em>Eatoniella helga</em></a>
pID: 748155
Taxonomic rank: 150
Author of the record: Václav Hanzlík
Created: 2022-10-18 18:29:04 - User Václav Hanzlík
Data last updated: 2023-10-16 13:51:18
URL: https://www.biolib.cz/en/taxon/id1951131/
Text function: [[t:1951131;<em>Eatoniella helga</em>]]
[[t:1951131;<em>Eatoniella helga</em>]] (Bartsch, 1915)
Reference: <a href="https://www.biolib.cz/en/taxon/id1951131/"><em>Eatoniella helga</em></a>
Images
Author: Bartsch, P.
Description
Author: Jan Delsing
Text ID: 128253
Text Type: 1
Page: 0
Created: 2023-10-16 13:53:16 - User Delsing Jan
Language: EN
Text function: [[t:1951131,textblock=128253,elang=EN;Description]]
Text ID: 128253
Text Type: 1
Page: 0
Created: 2023-10-16 13:53:16 - User Delsing Jan
Language: EN
Text function: [[t:1951131,textblock=128253,elang=EN;Description]]
As Microsetia helga:
Shell small, elongate-conic, yellowish white. Nuclear whorls not differentiated from the succeeding turns; all the whorls well rounded, appressed at the summit, through which the preceding whorl shines, which lends the shell the aspect of having a double suture. Sutures moderately impressed. Periphery of the last whorl somewhat inflated, well rounded. Base moderately long, narrowly umbilicated, well rounded; entire surface of spire and base marked by exceedingly fine incremental lines only. Aperture oval; posterior angle obtuse; outer lip thick; inner lip strongly curved and quite thick, reflected over the umbilicus; parietal wall covered with a thick callus.
The type and another specimen, Cat. No. 18705G, U.S.N.M., came from Port Alfred (Coll. No. 594). The type has six whorls and measures: Longth, 2.7 mm.; diameter, 1.5 mm. Cat.No. 250423,U.S.N.M., contains another specimen from Port Alfred (Coll. No. 1290).
Shell small, elongate-conic, yellowish white. Nuclear whorls not differentiated from the succeeding turns; all the whorls well rounded, appressed at the summit, through which the preceding whorl shines, which lends the shell the aspect of having a double suture. Sutures moderately impressed. Periphery of the last whorl somewhat inflated, well rounded. Base moderately long, narrowly umbilicated, well rounded; entire surface of spire and base marked by exceedingly fine incremental lines only. Aperture oval; posterior angle obtuse; outer lip thick; inner lip strongly curved and quite thick, reflected over the umbilicus; parietal wall covered with a thick callus.
The type and another specimen, Cat. No. 18705G, U.S.N.M., came from Port Alfred (Coll. No. 594). The type has six whorls and measures: Longth, 2.7 mm.; diameter, 1.5 mm. Cat.No. 250423,U.S.N.M., contains another specimen from Port Alfred (Coll. No. 1290).
Bartsch, P., 1915. Report on the Turton Collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum.
Author: Jan Delsing
Links and literature
Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Eatoniella helga (Bartsch, 1915)]Data retrieved on: 22 November 2013