Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus
Ectocotyla hirudo (Levinsen, 1879) is redescribed and recorded for the first time from the gills and branchial chambers of Chionoecetes opilio and Hyas araneus. Problems arising from previous descriptions are resolved through comparison of freshly collected material, at different times of the year,...
Published in: | Journal of the Fisheries Research Board of Canada |
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Canadian Science Publishing
1978
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Online Access: | http://dx.doi.org/10.1139/f78-193 http://www.nrcresearchpress.com/doi/pdf/10.1139/f78-193 |
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crcansciencepubl:10.1139/f78-193 2023-12-17T10:28:48+01:00 Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus Fleming, Lesley C. Burt, Michael D. B. 1978 http://dx.doi.org/10.1139/f78-193 http://www.nrcresearchpress.com/doi/pdf/10.1139/f78-193 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 35, issue 9, page 1223-1233 ISSN 0015-296X General Medicine journal-article 1978 crcansciencepubl https://doi.org/10.1139/f78-193 2023-11-19T13:38:23Z Ectocotyla hirudo (Levinsen, 1879) is redescribed and recorded for the first time from the gills and branchial chambers of Chionoecetes opilio and Hyas araneus. Problems arising from previous descriptions are resolved through comparison of freshly collected material, at different times of the year, with type material of Coleophora sp. and the type material of E. paguri Hyman, 1944, both of which are shown to be identical to the present material. Accordingly, E. paguri Hyman, 1944 is regarded as a junior synonym of E. hirudo (Levinsen, 1879). A new species, E. multitesticulata, is described and recorded also from C. opilio and H. araneus. Ectocotyla multitesticulata differs from E. hirudo primarily in the larger size of the worm, the greater number and size of the testes, the size of the egg capsule, and in the differences of the karyotype. The genus Ectocotyla is discussed in relation to closely related genera (Peraclistus, Minona, and Preminona) in the family Monocelididae. Key words: turbellarian systematics, Proseriata, Monocelididae, Ectocotyla, crab commensal Article in Journal/Newspaper Chionoecetes opilio Canadian Science Publishing (via Crossref) Journal of the Fisheries Research Board of Canada 35 9 1223 1233 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
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crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Fleming, Lesley C. Burt, Michael D. B. Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus |
topic_facet |
General Medicine |
description |
Ectocotyla hirudo (Levinsen, 1879) is redescribed and recorded for the first time from the gills and branchial chambers of Chionoecetes opilio and Hyas araneus. Problems arising from previous descriptions are resolved through comparison of freshly collected material, at different times of the year, with type material of Coleophora sp. and the type material of E. paguri Hyman, 1944, both of which are shown to be identical to the present material. Accordingly, E. paguri Hyman, 1944 is regarded as a junior synonym of E. hirudo (Levinsen, 1879). A new species, E. multitesticulata, is described and recorded also from C. opilio and H. araneus. Ectocotyla multitesticulata differs from E. hirudo primarily in the larger size of the worm, the greater number and size of the testes, the size of the egg capsule, and in the differences of the karyotype. The genus Ectocotyla is discussed in relation to closely related genera (Peraclistus, Minona, and Preminona) in the family Monocelididae. Key words: turbellarian systematics, Proseriata, Monocelididae, Ectocotyla, crab commensal |
format |
Article in Journal/Newspaper |
author |
Fleming, Lesley C. Burt, Michael D. B. |
author_facet |
Fleming, Lesley C. Burt, Michael D. B. |
author_sort |
Fleming, Lesley C. |
title |
Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus |
title_short |
Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus |
title_full |
Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus |
title_fullStr |
Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus |
title_full_unstemmed |
Revision of the Turbellarian Genus Ectocotyla (Seriata, Monocelididae) Associated with the Crabs Chionoecetes opilio and Hyas araneus |
title_sort |
revision of the turbellarian genus ectocotyla (seriata, monocelididae) associated with the crabs chionoecetes opilio and hyas araneus |
publisher |
Canadian Science Publishing |
publishDate |
1978 |
url |
http://dx.doi.org/10.1139/f78-193 http://www.nrcresearchpress.com/doi/pdf/10.1139/f78-193 |
genre |
Chionoecetes opilio |
genre_facet |
Chionoecetes opilio |
op_source |
Journal of the Fisheries Research Board of Canada volume 35, issue 9, page 1223-1233 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f78-193 |
container_title |
Journal of the Fisheries Research Board of Canada |
container_volume |
35 |
container_issue |
9 |
container_start_page |
1223 |
op_container_end_page |
1233 |
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1785581000698363904 |