Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution
Tetrabothrius shinni sp.nov. is described from blue-eyed shags, Phalacrocorax atriceps bransfieldensis Murphy in the western Antarctic. Morphologically, T. shinni is most similar to Tetrabothrius phalacrocoracis Burt, 1977, the only other tetrabothriid known from the Phalacrocoracidae. Specimens of...
Published in: | Canadian Journal of Zoology |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/z87-450 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-450 |
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crcansciencepubl:10.1139/z87-450 2023-12-17T10:22:21+01:00 Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution Hoberg, Eric P. 1987 http://dx.doi.org/10.1139/z87-450 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-450 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 65, issue 12, page 2969-2975 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1987 crcansciencepubl https://doi.org/10.1139/z87-450 2023-11-19T13:39:04Z Tetrabothrius shinni sp.nov. is described from blue-eyed shags, Phalacrocorax atriceps bransfieldensis Murphy in the western Antarctic. Morphologically, T. shinni is most similar to Tetrabothrius phalacrocoracis Burt, 1977, the only other tetrabothriid known from the Phalacrocoracidae. Specimens of T. shinni are distinguished by a relatively small scolex, numerous testes, (35–61 in number), a large genital atrium (196–317 μm in diameter), a long male canal (86–160 μm in length) with a prominent distal sphincter, and the configuration of the genital atrium (massive ventrally directed male papilla with the aperture of the male canal located anterolaterally). The extreme intraspecific variation in some morphological characters evident in specimens of T. shinni suggests that a reevaluation of some Tetrabothrius spp. is required. The life cycle of T. shinni is thought to involve nototheniid fishes as second intermediate or paratenic hosts. The host and geographic distributions and a suite of unique characters shared by T. shinni and T. phalacrocoracis suggest that they are sister species in which cladogenesis during the Tertiary coincided with that of shags referred to the subgenera Leucocarbo and Stictocarbo. Article in Journal/Newspaper Antarc* Antarctic Antarctica Phalacrocorax atriceps Canadian Science Publishing (via Crossref) Antarctic Canadian Journal of Zoology 65 12 2969 2975 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Hoberg, Eric P. Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Tetrabothrius shinni sp.nov. is described from blue-eyed shags, Phalacrocorax atriceps bransfieldensis Murphy in the western Antarctic. Morphologically, T. shinni is most similar to Tetrabothrius phalacrocoracis Burt, 1977, the only other tetrabothriid known from the Phalacrocoracidae. Specimens of T. shinni are distinguished by a relatively small scolex, numerous testes, (35–61 in number), a large genital atrium (196–317 μm in diameter), a long male canal (86–160 μm in length) with a prominent distal sphincter, and the configuration of the genital atrium (massive ventrally directed male papilla with the aperture of the male canal located anterolaterally). The extreme intraspecific variation in some morphological characters evident in specimens of T. shinni suggests that a reevaluation of some Tetrabothrius spp. is required. The life cycle of T. shinni is thought to involve nototheniid fishes as second intermediate or paratenic hosts. The host and geographic distributions and a suite of unique characters shared by T. shinni and T. phalacrocoracis suggest that they are sister species in which cladogenesis during the Tertiary coincided with that of shags referred to the subgenera Leucocarbo and Stictocarbo. |
format |
Article in Journal/Newspaper |
author |
Hoberg, Eric P. |
author_facet |
Hoberg, Eric P. |
author_sort |
Hoberg, Eric P. |
title |
Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
title_short |
Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
title_full |
Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
title_fullStr |
Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
title_full_unstemmed |
Tetrabothrius shinni sp.nov. (Eucestoda) from Phalacrocorax atriceps bransfieldensis (Pelecaniformes) in Antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
title_sort |
tetrabothrius shinni sp.nov. (eucestoda) from phalacrocorax atriceps bransfieldensis (pelecaniformes) in antarctica with comments on morphological variation, host–parasite biogeography, and evolution |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/z87-450 http://www.nrcresearchpress.com/doi/pdf/10.1139/z87-450 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica Phalacrocorax atriceps |
genre_facet |
Antarc* Antarctic Antarctica Phalacrocorax atriceps |
op_source |
Canadian Journal of Zoology volume 65, issue 12, page 2969-2975 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z87-450 |
container_title |
Canadian Journal of Zoology |
container_volume |
65 |
container_issue |
12 |
container_start_page |
2969 |
op_container_end_page |
2975 |
_version_ |
1785546977331642368 |