A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica
South Georgia is a remote sub-Antarctic island, considered a marine biodiversity ‘hotspot’ in the Southern Ocean. During a survey along the north coast of South Georgia several marine planarians were found. One of the specimens was a new species of Allogenus (Uteriporidae), which is described here a...
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Online Access: | http://dx.doi.org/10.1017/s0025315413001628 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315413001628 |
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crcambridgeupr:10.1017/s0025315413001628 2024-03-03T08:37:32+00:00 A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica Volonterio, Odile Brewin, Paul E. 2013 http://dx.doi.org/10.1017/s0025315413001628 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315413001628 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 94, issue 2, page 309-316 ISSN 0025-3154 1469-7769 Aquatic Science journal-article 2013 crcambridgeupr https://doi.org/10.1017/s0025315413001628 2024-02-08T08:39:28Z South Georgia is a remote sub-Antarctic island, considered a marine biodiversity ‘hotspot’ in the Southern Ocean. During a survey along the north coast of South Georgia several marine planarians were found. One of the specimens was a new species of Allogenus (Uteriporidae), which is described here as Allogenus sluysi sp. nov. The new species has the characteristics of the genus and can be distinguished from the type and only known species, Allogenus kerguelensis , by its smaller size, blackish-brown pigmentation, presence of three retinal cells in each eye cup, position of its testes half-way between the ventral and dorsal body surfaces or at a slightly more ventral position, and by having an ejaculatory duct that opens centrally at the tip of the penis papilla. The presently known geographical distribution of Allogenus , the heterogeneous marine planarian species composition in South Georgia, and the distribution of these species in this region are in agreement with a previously proposed vicariance hypothesis, albeit that dispersal cannot be ruled out. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Cambridge University Press Antarctic Southern Ocean Journal of the Marine Biological Association of the United Kingdom 94 2 309 316 |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Volonterio, Odile Brewin, Paul E. A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica |
topic_facet |
Aquatic Science |
description |
South Georgia is a remote sub-Antarctic island, considered a marine biodiversity ‘hotspot’ in the Southern Ocean. During a survey along the north coast of South Georgia several marine planarians were found. One of the specimens was a new species of Allogenus (Uteriporidae), which is described here as Allogenus sluysi sp. nov. The new species has the characteristics of the genus and can be distinguished from the type and only known species, Allogenus kerguelensis , by its smaller size, blackish-brown pigmentation, presence of three retinal cells in each eye cup, position of its testes half-way between the ventral and dorsal body surfaces or at a slightly more ventral position, and by having an ejaculatory duct that opens centrally at the tip of the penis papilla. The presently known geographical distribution of Allogenus , the heterogeneous marine planarian species composition in South Georgia, and the distribution of these species in this region are in agreement with a previously proposed vicariance hypothesis, albeit that dispersal cannot be ruled out. |
format |
Article in Journal/Newspaper |
author |
Volonterio, Odile Brewin, Paul E. |
author_facet |
Volonterio, Odile Brewin, Paul E. |
author_sort |
Volonterio, Odile |
title |
A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica |
title_short |
A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica |
title_full |
A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica |
title_fullStr |
A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica |
title_full_unstemmed |
A new species of Allogenus (Tricladida, Maricola, Uteriporidae) from South Georgia, Sub-Antarctica |
title_sort |
new species of allogenus (tricladida, maricola, uteriporidae) from south georgia, sub-antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1017/s0025315413001628 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315413001628 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 94, issue 2, page 309-316 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315413001628 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
94 |
container_issue |
2 |
container_start_page |
309 |
op_container_end_page |
316 |
_version_ |
1792499528391196672 |