New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean
Pycnogonid specimens of the genus Pallenopsis collected during the Antarctic Polarstern XXIII/8 cruise (23 November 2006 to 30 January 2007) were studied. Seven species are recognized in this collection and two of them are proposed as new species: Pallenopsis tubercula n. sp., P. elephantensis n. s...
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Consejo Superior de Investigaciones Científicas
2024-12-01
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| Series: | Scientia Marina |
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| Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/5621 |
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| author | Esperanza Cano-Sánchez Pablo J. López-González |
| author_facet | Esperanza Cano-Sánchez Pablo J. López-González |
| author_sort | Esperanza Cano-Sánchez |
| collection | DOAJ |
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Pycnogonid specimens of the genus Pallenopsis collected during the Antarctic Polarstern XXIII/8 cruise (23 November 2006 to 30 January 2007) were studied. Seven species are recognized in this collection and two of them are proposed as new species: Pallenopsis tubercula n. sp., P. elephantensis n. sp., P. gracilis Cano-Sánchez and López-González, 2019, P. hodgsoni Gordon, 1938, P. macronyx Bouvier, 1911, P. spicata Hodgson, 1914 and P. aff. vanhoeffeni Hodgson, 1915. Pallenopsis gracilis is reported for the first time since its original description. The new species are described, illustrated and compared with their closest congeners, and their morphological variability is discussed. A cluster analysis (Euclidean distance) including our Pallenopsis specimens and the holotype of P. gracilis is carried out, based on 24 morphological characters. Finally, an updated key to the Southern Ocean species is presented.
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| format | Article |
| id | doaj-art-d0edf853586e4e5c932ab088a176f17f |
| institution | DOAJ |
| issn | 0214-8358 1886-8134 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj-art-d0edf853586e4e5c932ab088a176f17f2025-08-20T02:44:28ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342024-12-0188410.3989/scimar.05423.091New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern OceanEsperanza Cano-Sánchez0Pablo J. López-González1Biodiversidad y Ecología Acuática, Departamento de Zoología, Facultad de Biología, Universidad de SevillaBiodiversidad y Ecología Acuática, Departamento de Zoología, Facultad de Biología, Universidad de Sevilla Pycnogonid specimens of the genus Pallenopsis collected during the Antarctic Polarstern XXIII/8 cruise (23 November 2006 to 30 January 2007) were studied. Seven species are recognized in this collection and two of them are proposed as new species: Pallenopsis tubercula n. sp., P. elephantensis n. sp., P. gracilis Cano-Sánchez and López-González, 2019, P. hodgsoni Gordon, 1938, P. macronyx Bouvier, 1911, P. spicata Hodgson, 1914 and P. aff. vanhoeffeni Hodgson, 1915. Pallenopsis gracilis is reported for the first time since its original description. The new species are described, illustrated and compared with their closest congeners, and their morphological variability is discussed. A cluster analysis (Euclidean distance) including our Pallenopsis specimens and the holotype of P. gracilis is carried out, based on 24 morphological characters. Finally, an updated key to the Southern Ocean species is presented. https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/5621Antarcticapycnogonidssea spiderSub-Antarcticamorphometric analysistaxonomy |
| spellingShingle | Esperanza Cano-Sánchez Pablo J. López-González New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean Scientia Marina Antarctica pycnogonids sea spider Sub-Antarctica morphometric analysis taxonomy |
| title | New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean |
| title_full | New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean |
| title_fullStr | New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean |
| title_full_unstemmed | New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean |
| title_short | New findings and two new species of the genus Pallenopsis (Pycnogonida: Pallenopsidae) from the Southern Ocean |
| title_sort | new findings and two new species of the genus pallenopsis pycnogonida pallenopsidae from the southern ocean |
| topic | Antarctica pycnogonids sea spider Sub-Antarctica morphometric analysis taxonomy |
| url | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/5621 |
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