Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae)
Necropsies of Baltic grey (Halichoerus grypus) and ringed seals (Pusa hispida) presented a rare opportunity to study their acanthocephalan fauna. Both species hosted adults of three species of the genus Corynosoma Lühe, 1904, namely C. magdaleni Montreuil, 1958, C. semerme (Forsell, 1904) Lühe 1911...
Published in: | European Journal of Taxonomy |
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Consortium of European Natural History Museums
2019
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ftdoajarticles:oai:doaj.org/article:6017d6b66b12476e86e8f7a83ef3c184 2023-05-15T18:03:47+02:00 Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) Sonja Leidenberger Sven Boström Matthew T. Wayland 2019-04-01T00:00:00Z https://doi.org/10.5852/ejt.2019.514 https://doaj.org/article/6017d6b66b12476e86e8f7a83ef3c184 EN eng Consortium of European Natural History Museums https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/677 https://doaj.org/toc/2118-9773 doi:10.5852/ejt.2019.514 2118-9773 https://doaj.org/article/6017d6b66b12476e86e8f7a83ef3c184 European Journal of Taxonomy, Iss 514 (2019) Baltic Sea grey seals ringed seals sem thorny-headed worms Zoology QL1-991 Botany QK1-989 article 2019 ftdoajarticles https://doi.org/10.5852/ejt.2019.514 2022-12-31T12:48:40Z Necropsies of Baltic grey (Halichoerus grypus) and ringed seals (Pusa hispida) presented a rare opportunity to study their acanthocephalan fauna. Both species hosted adults of three species of the genus Corynosoma Lühe, 1904, namely C. magdaleni Montreuil, 1958, C. semerme (Forsell, 1904) Lühe 1911 and C. strumosum (Rudolphi, 1802) Lühe 1904. A comparative morphological analysis of these three species of Corynosoma, combining both light and scanning electron microscopy, was performed for the first time. Sexual dimorphism in the size and shape of the trunk was observed in both C. magdaleni and C. semerme, but there was insufficient material to investigate this phenomenon in C. strumosum. Genital spines were not observed in any of the female acanthocephalans. Three possible explanations for the presence of genital spines in some females, but not others are (i) cryptic speciation, (ii) phenotypic variation and (iii) loss by extraction or shearing when the copulatory cap is released. Copulatory caps were observed on female C. semerme. The size and morphology showed considerable variability and all caps were strongly autofluoresecent. Article in Journal/Newspaper Pusa hispida Directory of Open Access Journals: DOAJ Articles Montreuil ENVELOPE(166.183,166.183,-73.067,-73.067) European Journal of Taxonomy 514 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Baltic Sea grey seals ringed seals sem thorny-headed worms Zoology QL1-991 Botany QK1-989 |
spellingShingle |
Baltic Sea grey seals ringed seals sem thorny-headed worms Zoology QL1-991 Botany QK1-989 Sonja Leidenberger Sven Boström Matthew T. Wayland Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) |
topic_facet |
Baltic Sea grey seals ringed seals sem thorny-headed worms Zoology QL1-991 Botany QK1-989 |
description |
Necropsies of Baltic grey (Halichoerus grypus) and ringed seals (Pusa hispida) presented a rare opportunity to study their acanthocephalan fauna. Both species hosted adults of three species of the genus Corynosoma Lühe, 1904, namely C. magdaleni Montreuil, 1958, C. semerme (Forsell, 1904) Lühe 1911 and C. strumosum (Rudolphi, 1802) Lühe 1904. A comparative morphological analysis of these three species of Corynosoma, combining both light and scanning electron microscopy, was performed for the first time. Sexual dimorphism in the size and shape of the trunk was observed in both C. magdaleni and C. semerme, but there was insufficient material to investigate this phenomenon in C. strumosum. Genital spines were not observed in any of the female acanthocephalans. Three possible explanations for the presence of genital spines in some females, but not others are (i) cryptic speciation, (ii) phenotypic variation and (iii) loss by extraction or shearing when the copulatory cap is released. Copulatory caps were observed on female C. semerme. The size and morphology showed considerable variability and all caps were strongly autofluoresecent. |
format |
Article in Journal/Newspaper |
author |
Sonja Leidenberger Sven Boström Matthew T. Wayland |
author_facet |
Sonja Leidenberger Sven Boström Matthew T. Wayland |
author_sort |
Sonja Leidenberger |
title |
Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) |
title_short |
Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) |
title_full |
Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) |
title_fullStr |
Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) |
title_full_unstemmed |
Morphological observations on three Baltic species of Corynosoma Lühe, 1905 (Acanthocephala, Polymorphidae) |
title_sort |
morphological observations on three baltic species of corynosoma lühe, 1905 (acanthocephala, polymorphidae) |
publisher |
Consortium of European Natural History Museums |
publishDate |
2019 |
url |
https://doi.org/10.5852/ejt.2019.514 https://doaj.org/article/6017d6b66b12476e86e8f7a83ef3c184 |
long_lat |
ENVELOPE(166.183,166.183,-73.067,-73.067) |
geographic |
Montreuil |
geographic_facet |
Montreuil |
genre |
Pusa hispida |
genre_facet |
Pusa hispida |
op_source |
European Journal of Taxonomy, Iss 514 (2019) |
op_relation |
https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/677 https://doaj.org/toc/2118-9773 doi:10.5852/ejt.2019.514 2118-9773 https://doaj.org/article/6017d6b66b12476e86e8f7a83ef3c184 |
op_doi |
https://doi.org/10.5852/ejt.2019.514 |
container_title |
European Journal of Taxonomy |
container_issue |
514 |
_version_ |
1766174790458015744 |