Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda)
A systematic revision on the shallow and abyssal species of Scissurellidae and Anatomidae occurring in Sub-Antarctic and Antarctic waters was carried out. This study is based on material from several field trips and museum collections. The shell morphologies of all the species are redescribed and il...
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Online Access: | http://hdl.handle.net/1834/17155 https://doi.org/10.4002/0076-2997-49.2.393 |
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ftoceandocs:oai:aquadocs.org:1834/17155 2024-06-09T07:40:21+00:00 Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) Zelaya, D. Geiger, D. 2007 pp.393-443 http://hdl.handle.net/1834/17155 https://doi.org/10.4002/0076-2997-49.2.393 en eng https://doi.org/10.4002/0076-2997-49.2.393 http://hdl.handle.net/1834/17155 Journal Contribution Refereed 2007 ftoceandocs https://doi.org/10.4002/0076-2997-49.2.393 2024-05-15T08:02:16Z A systematic revision on the shallow and abyssal species of Scissurellidae and Anatomidae occurring in Sub-Antarctic and Antarctic waters was carried out. This study is based on material from several field trips and museum collections. The shell morphologies of all the species are redescribed and illustrated with scanning electron micrographs. Additional information on the gross anatomy and the radula for seven species is given. A total of six anatomid and seven scissurellid species are recognized as valid in Sub-Antarctic and Antarctic waters, including three new species herein described. Anatomids are represented by the genera Anatoma and Thieleella; the species recognized for the area are: Anatoma conica (d'Orbigny, 1841), characterized by having a globular shell, sculptured with strong axial ribs; Anatoma euglypta (Pelseneer, 1903), has a biconical, delicately cancellate shell; Anatoma shiraseae Numanami & Okutani, 1990, a gradated shell with a distinct spiral ridge on the shoulder and cancellate ornamentation; Thieleella amoena (Thiele, 1912), is globose, strongly sculptured, and with flared lower portion of aperture; Thieleella weddelliana n. sp. is characterized by having a laterally expanded shell, with rounded whorls, deep umbilicus, and strong axial ribs; and Thieleella argentinae n. sp. shows a depressed and widely umbilicated shell, with cancellate sculpture. Scissurellids are represented by the genera Scissurella, Ariella, and Sinezona: Scissurella clathrata Strebel, 1908, is characterized by having an inflated shell with densely cancellate sculpture; Scissurella petermannensis Lamy, 1910, is sculptured with strong axial ribs; Scissurella obliqua Watson, 1886, is nearly smooth and has a shallow umbilicus; Scissurella malvinarum n. sp. also has a smooth shell surface, but the umbilicus is deep and surrounded by 2–6 spiral cords; in Scissurella supraplicata Smith, 1875, the shell is inflated and teleoconch I exhibits strong axial ribs; Ariella subantarctica (Hedley, 1916), has a depressed shell, ... Book Antarc* Antarctic IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Antarctic Pelseneer ENVELOPE(-62.217,-62.217,-64.317,-64.317) Malacologia 49 2 393 443 |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
description |
A systematic revision on the shallow and abyssal species of Scissurellidae and Anatomidae occurring in Sub-Antarctic and Antarctic waters was carried out. This study is based on material from several field trips and museum collections. The shell morphologies of all the species are redescribed and illustrated with scanning electron micrographs. Additional information on the gross anatomy and the radula for seven species is given. A total of six anatomid and seven scissurellid species are recognized as valid in Sub-Antarctic and Antarctic waters, including three new species herein described. Anatomids are represented by the genera Anatoma and Thieleella; the species recognized for the area are: Anatoma conica (d'Orbigny, 1841), characterized by having a globular shell, sculptured with strong axial ribs; Anatoma euglypta (Pelseneer, 1903), has a biconical, delicately cancellate shell; Anatoma shiraseae Numanami & Okutani, 1990, a gradated shell with a distinct spiral ridge on the shoulder and cancellate ornamentation; Thieleella amoena (Thiele, 1912), is globose, strongly sculptured, and with flared lower portion of aperture; Thieleella weddelliana n. sp. is characterized by having a laterally expanded shell, with rounded whorls, deep umbilicus, and strong axial ribs; and Thieleella argentinae n. sp. shows a depressed and widely umbilicated shell, with cancellate sculpture. Scissurellids are represented by the genera Scissurella, Ariella, and Sinezona: Scissurella clathrata Strebel, 1908, is characterized by having an inflated shell with densely cancellate sculpture; Scissurella petermannensis Lamy, 1910, is sculptured with strong axial ribs; Scissurella obliqua Watson, 1886, is nearly smooth and has a shallow umbilicus; Scissurella malvinarum n. sp. also has a smooth shell surface, but the umbilicus is deep and surrounded by 2–6 spiral cords; in Scissurella supraplicata Smith, 1875, the shell is inflated and teleoconch I exhibits strong axial ribs; Ariella subantarctica (Hedley, 1916), has a depressed shell, ... |
format |
Book |
author |
Zelaya, D. Geiger, D. |
spellingShingle |
Zelaya, D. Geiger, D. Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) |
author_facet |
Zelaya, D. Geiger, D. |
author_sort |
Zelaya, D. |
title |
Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) |
title_short |
Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) |
title_full |
Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) |
title_fullStr |
Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) |
title_full_unstemmed |
Species Of Scissurellidae and Anatomidae From Sub-Antarctic and Antarctic Waters (Gastropoda: Vetigastropoda) |
title_sort |
species of scissurellidae and anatomidae from sub-antarctic and antarctic waters (gastropoda: vetigastropoda) |
publishDate |
2007 |
url |
http://hdl.handle.net/1834/17155 https://doi.org/10.4002/0076-2997-49.2.393 |
long_lat |
ENVELOPE(-62.217,-62.217,-64.317,-64.317) |
geographic |
Antarctic Pelseneer |
geographic_facet |
Antarctic Pelseneer |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://doi.org/10.4002/0076-2997-49.2.393 http://hdl.handle.net/1834/17155 |
op_doi |
https://doi.org/10.4002/0076-2997-49.2.393 |
container_title |
Malacologia |
container_volume |
49 |
container_issue |
2 |
container_start_page |
393 |
op_container_end_page |
443 |
_version_ |
1801383769696894976 |