Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) is described from whiskered auklets, Aethia pygmaea (Gmelin), and reported from a crested auklet, A. cristatella (Pallas), in Alaska. The species can be distinguished from others of the genus Diorchis Clerc, 1903 by the small size of the scolex (...
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1982
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crcansciencepubl:10.1139/z82-281 2023-12-17T10:51:35+01:00 Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska Hoberg, Eric P. 1982 http://dx.doi.org/10.1139/z82-281 http://www.nrcresearchpress.com/doi/pdf/10.1139/z82-281 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 60, issue 9, page 2198-2202 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1982 crcansciencepubl https://doi.org/10.1139/z82-281 2023-11-19T13:38:20Z Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) is described from whiskered auklets, Aethia pygmaea (Gmelin), and reported from a crested auklet, A. cristatella (Pallas), in Alaska. The species can be distinguished from others of the genus Diorchis Clerc, 1903 by the small size of the scolex (armed with 10 hooks, 35–41 μm in length), strobila, and most internal organs. A combination of characters including suckers without spines, a relatively long cirrus sac, a cylindrical cirrus lacking a basal bulb and armed with 12–20 longitudinal rows of minute spines measuring 1–2 μm, a globular to bilobed ovary, and ovoid eggs without filaments further distinguish this species from its congeners. In addition, the longitudinal musculature of the cirrus sac appears to be unique for members of the genus. This is the first report of cestodes of the genus Diorchis from pelagic seabirds, and is the first record of any cestode from birds of the genus Aethia Merrem. Article in Journal/Newspaper Alaska Aleutian Islands Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 60 9 2198 2202 |
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. Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) is described from whiskered auklets, Aethia pygmaea (Gmelin), and reported from a crested auklet, A. cristatella (Pallas), in Alaska. The species can be distinguished from others of the genus Diorchis Clerc, 1903 by the small size of the scolex (armed with 10 hooks, 35–41 μm in length), strobila, and most internal organs. A combination of characters including suckers without spines, a relatively long cirrus sac, a cylindrical cirrus lacking a basal bulb and armed with 12–20 longitudinal rows of minute spines measuring 1–2 μm, a globular to bilobed ovary, and ovoid eggs without filaments further distinguish this species from its congeners. In addition, the longitudinal musculature of the cirrus sac appears to be unique for members of the genus. This is the first report of cestodes of the genus Diorchis from pelagic seabirds, and is the first record of any cestode from birds of the genus Aethia Merrem. |
format |
Article in Journal/Newspaper |
author |
Hoberg, Eric P. |
author_facet |
Hoberg, Eric P. |
author_sort |
Hoberg, Eric P. |
title |
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska |
title_short |
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska |
title_full |
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska |
title_fullStr |
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska |
title_full_unstemmed |
Diorchis pelagicus sp.nov. (Cestoda: Hymenolepididae) from the Whiskered Auklet, Aethia pygmaea , and the Crested Auklet, A . cristatella , in the Western Aleutian Islands, Alaska |
title_sort |
diorchis pelagicus sp.nov. (cestoda: hymenolepididae) from the whiskered auklet, aethia pygmaea , and the crested auklet, a . cristatella , in the western aleutian islands, alaska |
publisher |
Canadian Science Publishing |
publishDate |
1982 |
url |
http://dx.doi.org/10.1139/z82-281 http://www.nrcresearchpress.com/doi/pdf/10.1139/z82-281 |
genre |
Alaska Aleutian Islands |
genre_facet |
Alaska Aleutian Islands |
op_source |
Canadian Journal of Zoology volume 60, issue 9, page 2198-2202 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z82-281 |
container_title |
Canadian Journal of Zoology |
container_volume |
60 |
container_issue |
9 |
container_start_page |
2198 |
op_container_end_page |
2202 |
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1785576878834188288 |