Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov.
Anobothrus apaleatus sp. nov. (Fig. 4 a–e; Table 5) Examined specimens. Holotype, So 157, station 33 TVG, 37 ° 46.555 ’S, 110 ° 54.615 ’W to 37 ° 46.558 ’S, 110 ° 54.635 ’W, 2206-2219 m, 29.6.2001, 1 cs (SMF 17752). Additional specimens: So 110 / 1 a: Station 9 TVG, 44 ° 40.167 ’N, 125 °05.855’W, 59...
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Zenodo
2009
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Online Access: | https://dx.doi.org/10.5281/zenodo.6219218 https://zenodo.org/record/6219218 |
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ftdatacite:10.5281/zenodo.6219218 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Ampharetidae Anobothrus Anobothrus apaleatus |
spellingShingle |
Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Ampharetidae Anobothrus Anobothrus apaleatus Reuscher, Michael Fiege, Dieter Wehe, Thomas Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Ampharetidae Anobothrus Anobothrus apaleatus |
description |
Anobothrus apaleatus sp. nov. (Fig. 4 a–e; Table 5) Examined specimens. Holotype, So 157, station 33 TVG, 37 ° 46.555 ’S, 110 ° 54.615 ’W to 37 ° 46.558 ’S, 110 ° 54.635 ’W, 2206-2219 m, 29.6.2001, 1 cs (SMF 17752). Additional specimens: So 110 / 1 a: Station 9 TVG, 44 ° 40.167 ’N, 125 °05.855’W, 596 m, 12.7.1996, 1 cs (SMF 17814). Station 11 TVG, 44 ° 40.134 ’N, 125 °06.503’W, 524 m, 12.7.1996, 1 cs (SMF 17809). Station 15 ROV, 44 ° 40.14 ’N, 125 °05.72’W to 44 ° 40.15 ’N, 125 °05.81’W, 12.7.1996, 1 cs (SMF 17811). Station 18 TVG, 44 ° 34.235 ’N, 125 °08.891’W, 778 m, 12.7.1996, 4 af (SMF 17815), 1 af (SMF 17816). Additional type material examined: Sosanides glandularis Hartmann-Schröder, 1965. Holotype, station 76, 73° 39 ’W 38 ° 16 ’S, 66 m, 11.3.1960, 1 cs (ZMH P- 15029). Description. Length of holotype 11 mm; width (excl. parapodia) 0.6 mm. Body narrow, gradually tapering towards pygidium (Fig. 4 a). Prostomium trilobed, without eye-spots. Buccal tentacles withdrawn, tips densely covered with short papillae. Four pairs of long, narrow, cirriform branchiae on segment II. No gap between groups of branchiae. Three branchiae of each group arranged in a transverse line; one pair of branchiae slightly shifted backwards between innermost and outer two branchiae of each group (Fig. 4 b). Paired nephridial papillae not visible. 15 thoracic chaetigers. First three notopodia reduced. First chaetiger with only one or two chaetae on each side, hardly visible. 12 thoracic uncinigers. Second unciniger anteriorly with circular glandular band. Fifth-to-last pair of notopodia elevated and connected by prominent dorsal glandular ridge. Elevated notopodia without morphological modifications, resembling remaining notopodia. Notopodia without cirri. Neuropodia from third abdominal segment onwards elongated pinnules. 12 abdominal segments. Abdomen long, encompassing about half of body length. Pygidium with terminal anus, surrounded by two lateral papillae and three minute dorsal papillae (Fig. 4 c). Capillary chaetae appearing bilimbate under the light microscope. Chaetae of unciniger with elevated notopodia without visible modifications. Thoracic uncini with three vertical rows of four teeth each. Median row of teeth shifted, resulting in alternate rows. (Fig. 4 d, e). Abdominal uncini similar to thoracic ones. Tube made of red deep-sea clay. Variation. Other complete specimens (SMF 17809, SMF 17814, SMF 17811) 4–6 mm long. Dorsal ridge across unciniger 8 in other specimens less pronounced than in holotype. Remarks. Anobothrus apaleatus sp. nov. , differs from all other species of the genus Anobothrus by the lack of chaetae on segment II. But the presence of the elevated notopodia of unciniger 8 and the circular band on uncinger 2 clearly distinguish this species as belonging to Anobothrus . A synoptic overview of important characters for all valid species of the genus is given in Table 5. The only other species with the circular band on unciniger 2 is Anobothrus laubieri (Desbruyères, 1978). This species can be easily distinguished by the possession of three instead of four pairs of branchiae. Anobothrus antarcticus Monro, 1939 is the only other species with papillose tentacles within the genus but has pronounced chaetae on segment II (paleae) and its circular band is situated on unciniger 3. Type material of Anobothrus glandularis (Hartmann-Schröder, 1965), described as Sosanides glandularis , was examined to assess the synonymy of Anobothrus and Sosanides as suggested by Jirkov (2001). We follow Jirkov in considering the monotypic genus Sosanides Hartmann-Schröder, 1965 as a junior synonym of Anobothrus . Detailed information for all genera considered valid and showing a dorsal modification are given in Table 6. Etymology. The species is named for the lack of chaetae on segment II (paleae). Distribution. North-East Pacific: Cascadia Margin (off Oregon, USA). South-East Pacific: Pacific- Antarctic Ridge. : Published as part of Reuscher, Michael, Fiege, Dieter & Wehe, Thomas, 2009, Four new species of Ampharetidae (Annelida: Polychaeta) from Pacific hot vents and cold seeps, with a key and synoptic table of characters for all genera, pp. 1-40 in Zootaxa 2191 on pages 28-29, DOI: 10.5281/zenodo.189379 : {"references": ["Hartmann-Schroder, G. (1965) Die Polychaeten des Sublitorals. In: Hartmann-Schroder, G. & Hartmann, G. (Eds.), Zur Kenntnis des Sublitorals der chilenischen Kuste unter besonderer Berucksichtigung der Polychaeten und Ostracoden. (Mit Bemerkungen uber den Einfluss sauerstoffarmer Stromungen auf die Besiedlung von marinen Sedimenten). Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 62 (Erganzungsband), 59 - 305.", "Desbruyeres, D. (1978) Melythasides laubieri gen. sp. nov., Ampharetidae (Annelides Polychetes sedentaires) abyssal de la mer de Norvege. Bulletin du Museum d'Histoire Naturelle, Paris, 353 (514), 231 - 238.", "Monro, C. C. A. (1939) Polychaeta. B. A. N. Z. Antarctic Research Expedition Reports, 4 (4), 87 - 156.", "Jirkov, I. A. (2001) [Polychaeta of the Arctic Ocean]. Yanus-K, Moskva, 632 pp (in Russian)."]} |
format |
Text |
author |
Reuscher, Michael Fiege, Dieter Wehe, Thomas |
author_facet |
Reuscher, Michael Fiege, Dieter Wehe, Thomas |
author_sort |
Reuscher, Michael |
title |
Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. |
title_short |
Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. |
title_full |
Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. |
title_fullStr |
Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. |
title_full_unstemmed |
Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. |
title_sort |
anobothrus apaleatus reuscher, fiege & wehe, 2009, sp. nov. |
publisher |
Zenodo |
publishDate |
2009 |
url |
https://dx.doi.org/10.5281/zenodo.6219218 https://zenodo.org/record/6219218 |
geographic |
Arctic Antarctic Arctic Ocean Pacific |
geographic_facet |
Arctic Antarctic Arctic Ocean Pacific |
genre |
Antarc* Antarctic antarcticus Arctic Arctic Ocean |
genre_facet |
Antarc* Antarctic antarcticus Arctic Arctic Ocean |
op_relation |
http://publication.plazi.org/id/4A0BFFD1FFC5B7568319FFAEFFA4FFE7 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.189379 http://publication.plazi.org/id/4A0BFFD1FFC5B7568319FFAEFFA4FFE7 https://dx.doi.org/10.5281/zenodo.189383 https://dx.doi.org/10.5281/zenodo.6219217 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC0 |
op_doi |
https://doi.org/10.5281/zenodo.6219218 https://doi.org/10.5281/zenodo.189379 https://doi.org/10.5281/zenodo.189383 https://doi.org/10.5281/zenodo.6219217 |
_version_ |
1766017362498158592 |
spelling |
ftdatacite:10.5281/zenodo.6219218 2023-05-15T13:31:18+02:00 Anobothrus apaleatus Reuscher, Fiege & Wehe, 2009, sp. nov. Reuscher, Michael Fiege, Dieter Wehe, Thomas 2009 https://dx.doi.org/10.5281/zenodo.6219218 https://zenodo.org/record/6219218 unknown Zenodo http://publication.plazi.org/id/4A0BFFD1FFC5B7568319FFAEFFA4FFE7 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.189379 http://publication.plazi.org/id/4A0BFFD1FFC5B7568319FFAEFFA4FFE7 https://dx.doi.org/10.5281/zenodo.189383 https://dx.doi.org/10.5281/zenodo.6219217 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Ampharetidae Anobothrus Anobothrus apaleatus article-journal ScholarlyArticle Taxonomic treatment Text 2009 ftdatacite https://doi.org/10.5281/zenodo.6219218 https://doi.org/10.5281/zenodo.189379 https://doi.org/10.5281/zenodo.189383 https://doi.org/10.5281/zenodo.6219217 2022-04-01T11:56:18Z Anobothrus apaleatus sp. nov. (Fig. 4 a–e; Table 5) Examined specimens. Holotype, So 157, station 33 TVG, 37 ° 46.555 ’S, 110 ° 54.615 ’W to 37 ° 46.558 ’S, 110 ° 54.635 ’W, 2206-2219 m, 29.6.2001, 1 cs (SMF 17752). Additional specimens: So 110 / 1 a: Station 9 TVG, 44 ° 40.167 ’N, 125 °05.855’W, 596 m, 12.7.1996, 1 cs (SMF 17814). Station 11 TVG, 44 ° 40.134 ’N, 125 °06.503’W, 524 m, 12.7.1996, 1 cs (SMF 17809). Station 15 ROV, 44 ° 40.14 ’N, 125 °05.72’W to 44 ° 40.15 ’N, 125 °05.81’W, 12.7.1996, 1 cs (SMF 17811). Station 18 TVG, 44 ° 34.235 ’N, 125 °08.891’W, 778 m, 12.7.1996, 4 af (SMF 17815), 1 af (SMF 17816). Additional type material examined: Sosanides glandularis Hartmann-Schröder, 1965. Holotype, station 76, 73° 39 ’W 38 ° 16 ’S, 66 m, 11.3.1960, 1 cs (ZMH P- 15029). Description. Length of holotype 11 mm; width (excl. parapodia) 0.6 mm. Body narrow, gradually tapering towards pygidium (Fig. 4 a). Prostomium trilobed, without eye-spots. Buccal tentacles withdrawn, tips densely covered with short papillae. Four pairs of long, narrow, cirriform branchiae on segment II. No gap between groups of branchiae. Three branchiae of each group arranged in a transverse line; one pair of branchiae slightly shifted backwards between innermost and outer two branchiae of each group (Fig. 4 b). Paired nephridial papillae not visible. 15 thoracic chaetigers. First three notopodia reduced. First chaetiger with only one or two chaetae on each side, hardly visible. 12 thoracic uncinigers. Second unciniger anteriorly with circular glandular band. Fifth-to-last pair of notopodia elevated and connected by prominent dorsal glandular ridge. Elevated notopodia without morphological modifications, resembling remaining notopodia. Notopodia without cirri. Neuropodia from third abdominal segment onwards elongated pinnules. 12 abdominal segments. Abdomen long, encompassing about half of body length. Pygidium with terminal anus, surrounded by two lateral papillae and three minute dorsal papillae (Fig. 4 c). Capillary chaetae appearing bilimbate under the light microscope. Chaetae of unciniger with elevated notopodia without visible modifications. Thoracic uncini with three vertical rows of four teeth each. Median row of teeth shifted, resulting in alternate rows. (Fig. 4 d, e). Abdominal uncini similar to thoracic ones. Tube made of red deep-sea clay. Variation. Other complete specimens (SMF 17809, SMF 17814, SMF 17811) 4–6 mm long. Dorsal ridge across unciniger 8 in other specimens less pronounced than in holotype. Remarks. Anobothrus apaleatus sp. nov. , differs from all other species of the genus Anobothrus by the lack of chaetae on segment II. But the presence of the elevated notopodia of unciniger 8 and the circular band on uncinger 2 clearly distinguish this species as belonging to Anobothrus . A synoptic overview of important characters for all valid species of the genus is given in Table 5. The only other species with the circular band on unciniger 2 is Anobothrus laubieri (Desbruyères, 1978). This species can be easily distinguished by the possession of three instead of four pairs of branchiae. Anobothrus antarcticus Monro, 1939 is the only other species with papillose tentacles within the genus but has pronounced chaetae on segment II (paleae) and its circular band is situated on unciniger 3. Type material of Anobothrus glandularis (Hartmann-Schröder, 1965), described as Sosanides glandularis , was examined to assess the synonymy of Anobothrus and Sosanides as suggested by Jirkov (2001). We follow Jirkov in considering the monotypic genus Sosanides Hartmann-Schröder, 1965 as a junior synonym of Anobothrus . Detailed information for all genera considered valid and showing a dorsal modification are given in Table 6. Etymology. The species is named for the lack of chaetae on segment II (paleae). Distribution. North-East Pacific: Cascadia Margin (off Oregon, USA). South-East Pacific: Pacific- Antarctic Ridge. : Published as part of Reuscher, Michael, Fiege, Dieter & Wehe, Thomas, 2009, Four new species of Ampharetidae (Annelida: Polychaeta) from Pacific hot vents and cold seeps, with a key and synoptic table of characters for all genera, pp. 1-40 in Zootaxa 2191 on pages 28-29, DOI: 10.5281/zenodo.189379 : {"references": ["Hartmann-Schroder, G. (1965) Die Polychaeten des Sublitorals. In: Hartmann-Schroder, G. & Hartmann, G. (Eds.), Zur Kenntnis des Sublitorals der chilenischen Kuste unter besonderer Berucksichtigung der Polychaeten und Ostracoden. (Mit Bemerkungen uber den Einfluss sauerstoffarmer Stromungen auf die Besiedlung von marinen Sedimenten). Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 62 (Erganzungsband), 59 - 305.", "Desbruyeres, D. (1978) Melythasides laubieri gen. sp. nov., Ampharetidae (Annelides Polychetes sedentaires) abyssal de la mer de Norvege. Bulletin du Museum d'Histoire Naturelle, Paris, 353 (514), 231 - 238.", "Monro, C. C. A. (1939) Polychaeta. B. A. N. Z. Antarctic Research Expedition Reports, 4 (4), 87 - 156.", "Jirkov, I. A. (2001) [Polychaeta of the Arctic Ocean]. Yanus-K, Moskva, 632 pp (in Russian)."]} Text Antarc* Antarctic antarcticus Arctic Arctic Ocean DataCite Metadata Store (German National Library of Science and Technology) Arctic Antarctic Arctic Ocean Pacific |