Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali)
Two new species of Gyrocotyle have been found in the intestine of the deepwater chimaera Hydrolagus affinis of the northwest Atlantic. Gyrocotyle had not previously been recorded from this host species.Descriptions are provided for ♂-mature and ♀-mature specimens of Gyrocotyle major n.sp. and ♂-matu...
Published in: | Journal of the Fisheries Research Board of Canada |
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Language: | English |
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Canadian Science Publishing
1968
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Online Access: | http://dx.doi.org/10.1139/f68-206 http://www.nrcresearchpress.com/doi/pdf/10.1139/f68-206 |
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crcansciencepubl:10.1139/f68-206 2024-06-23T07:55:40+00:00 Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) Land, Jacob van der Templeman, Wilfred 1968 http://dx.doi.org/10.1139/f68-206 http://www.nrcresearchpress.com/doi/pdf/10.1139/f68-206 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 25, issue 11, page 2365-2385 ISSN 0015-296X journal-article 1968 crcansciencepubl https://doi.org/10.1139/f68-206 2024-05-24T13:05:52Z Two new species of Gyrocotyle have been found in the intestine of the deepwater chimaera Hydrolagus affinis of the northwest Atlantic. Gyrocotyle had not previously been recorded from this host species.Descriptions are provided for ♂-mature and ♀-mature specimens of Gyrocotyle major n.sp. and ♂-mature specimens of Gyrocotyle abyssicola n.sp. The systematic status, distribution, and some host relationships of these species are discussed. Within the subgenus Amphiptyches, two groups of species are recognized: the urna-group, including G. major, and the confusa-group including G. abyssicola. Geographical variation is shown by G. major. Allometric growth of different parts of the body in G. major is described. These Gyrocotyle specimens are the largest yet recorded, G. major attaining a maximum length in our collection of 200 mm and G. abyssicola of 138 mm. The size of G. major increases with size of host. Article in Journal/Newspaper Northwest Atlantic Canadian Science Publishing Urna ENVELOPE(16.767,16.767,-72.233,-72.233) Journal of the Fisheries Research Board of Canada 25 11 2365 2385 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Two new species of Gyrocotyle have been found in the intestine of the deepwater chimaera Hydrolagus affinis of the northwest Atlantic. Gyrocotyle had not previously been recorded from this host species.Descriptions are provided for ♂-mature and ♀-mature specimens of Gyrocotyle major n.sp. and ♂-mature specimens of Gyrocotyle abyssicola n.sp. The systematic status, distribution, and some host relationships of these species are discussed. Within the subgenus Amphiptyches, two groups of species are recognized: the urna-group, including G. major, and the confusa-group including G. abyssicola. Geographical variation is shown by G. major. Allometric growth of different parts of the body in G. major is described. These Gyrocotyle specimens are the largest yet recorded, G. major attaining a maximum length in our collection of 200 mm and G. abyssicola of 138 mm. The size of G. major increases with size of host. |
format |
Article in Journal/Newspaper |
author |
Land, Jacob van der Templeman, Wilfred |
spellingShingle |
Land, Jacob van der Templeman, Wilfred Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) |
author_facet |
Land, Jacob van der Templeman, Wilfred |
author_sort |
Land, Jacob van der |
title |
Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) |
title_short |
Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) |
title_full |
Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) |
title_fullStr |
Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) |
title_full_unstemmed |
Two New Species of Gyrocotyle (Monogenea) from Hydrolagus affinis (Brito Capello) (Holocephali) |
title_sort |
two new species of gyrocotyle (monogenea) from hydrolagus affinis (brito capello) (holocephali) |
publisher |
Canadian Science Publishing |
publishDate |
1968 |
url |
http://dx.doi.org/10.1139/f68-206 http://www.nrcresearchpress.com/doi/pdf/10.1139/f68-206 |
long_lat |
ENVELOPE(16.767,16.767,-72.233,-72.233) |
geographic |
Urna |
geographic_facet |
Urna |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Journal of the Fisheries Research Board of Canada volume 25, issue 11, page 2365-2385 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f68-206 |
container_title |
Journal of the Fisheries Research Board of Canada |
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25 |
container_issue |
11 |
container_start_page |
2365 |
op_container_end_page |
2385 |
_version_ |
1802648338565169152 |