Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae).
Cuspidaria concentrica Thiele, 1912 , frequently reported as a synonym of Cuspidaria kerguelensis Smith, 1885, is re-described and revalidated upon the study of new materials from South Georgia Islands; this constitute the first record of its presence in the Scotia Sea. The more elongated shell outl...
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ftoceandocs:oai:aquadocs.org:1834/17217 2024-06-09T07:40:43+00:00 Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). Zelaya, D. Ituarte, C. 2006 pp.170-177 http://hdl.handle.net/1834/17217 en eng 0042-3211 http://hdl.handle.net/1834/17217 Journal Contribution Refereed 2006 ftoceandocs 2024-05-15T08:02:16Z Cuspidaria concentrica Thiele, 1912 , frequently reported as a synonym of Cuspidaria kerguelensis Smith, 1885, is re-described and revalidated upon the study of new materials from South Georgia Islands; this constitute the first record of its presence in the Scotia Sea. The more elongated shell outline of C. concentrica and the smaller number of elevated lamellar concentric ridges clearly separate it from C. kerguelensis. Cuspidaria minima (Egorova, 1993), a species known from East Antarctica and South Orkneys Islands, is re-described upon material from Elephant Islands. C. minima is characterized by a small shell with a globose disc strikingly separated from the short rostrum, and shell surface with high, lamellated, bent upwards commarginal ridges. Moreover, anatomical data mainly from septal musculature of both species, are given. Furthermore type specimens of Cuspidaria tenella Smith, 1907, Cuspidaria plicata Thiele, 1912 and Cuspidaria infelix Thiele, 1912 are refigured and the reports on the presence of C. kerguelensis in the Scotia Arc Islands are discussed. Published Book Antarc* Antarctic Antarctica East Antarctica Scotia Sea IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Antarctic East Antarctica Scotia Sea |
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Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
description |
Cuspidaria concentrica Thiele, 1912 , frequently reported as a synonym of Cuspidaria kerguelensis Smith, 1885, is re-described and revalidated upon the study of new materials from South Georgia Islands; this constitute the first record of its presence in the Scotia Sea. The more elongated shell outline of C. concentrica and the smaller number of elevated lamellar concentric ridges clearly separate it from C. kerguelensis. Cuspidaria minima (Egorova, 1993), a species known from East Antarctica and South Orkneys Islands, is re-described upon material from Elephant Islands. C. minima is characterized by a small shell with a globose disc strikingly separated from the short rostrum, and shell surface with high, lamellated, bent upwards commarginal ridges. Moreover, anatomical data mainly from septal musculature of both species, are given. Furthermore type specimens of Cuspidaria tenella Smith, 1907, Cuspidaria plicata Thiele, 1912 and Cuspidaria infelix Thiele, 1912 are refigured and the reports on the presence of C. kerguelensis in the Scotia Arc Islands are discussed. Published |
format |
Book |
author |
Zelaya, D. Ituarte, C. |
spellingShingle |
Zelaya, D. Ituarte, C. Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). |
author_facet |
Zelaya, D. Ituarte, C. |
author_sort |
Zelaya, D. |
title |
Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). |
title_short |
Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). |
title_full |
Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). |
title_fullStr |
Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). |
title_full_unstemmed |
Redescription of two Antarctic species of Cuspidaria: C. concentrica Thiele, 1912 and C. minima (Egorova, 1993) (Bivalvia, Cuspidariidae). |
title_sort |
redescription of two antarctic species of cuspidaria: c. concentrica thiele, 1912 and c. minima (egorova, 1993) (bivalvia, cuspidariidae). |
publishDate |
2006 |
url |
http://hdl.handle.net/1834/17217 |
geographic |
Antarctic East Antarctica Scotia Sea |
geographic_facet |
Antarctic East Antarctica Scotia Sea |
genre |
Antarc* Antarctic Antarctica East Antarctica Scotia Sea |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Scotia Sea |
op_relation |
0042-3211 http://hdl.handle.net/1834/17217 |
_version_ |
1801369126314180608 |