Oligobregma blakei Schüller & Hilbig, 2007, sp. nov.
Oligobregma blakei sp. nov. (Fig. 1 A–E) Holotype. Scotia Sea, northeast off Elephant Island, Sta. 46 7, 30 January 2002, 60° 38.35 ’S, 53 ° 57.36 ’W, 2889–2892 m, EBS (ZMH, P 24732). Etymology. The species is named after J.A. Blake, whose monograph about the Scalibregmatidae of the Southern ocean...
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ftzenodo:oai:zenodo.org:5660935 2023-06-06T11:53:16+02:00 Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. Schüller, Myriam Hilbig, Brigitte 2007-12-31 https://zenodo.org/record/5660935 https://doi.org/10.5281/zenodo.5660935 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/CF56AB74FFF4FFCCFF0F3504FD7362DC doi:10.5281/zenodo.175240 http://publication.plazi.org/id/336FD30CFFF6FFCFFF983426FFCA661E doi:10.5281/zenodo.175241 http://zoobank.org/26F8EDF1-BE55-4E18-BCEA-6B5E388E2169 doi:10.5281/zenodo.5660934 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5660935 https://doi.org/10.5281/zenodo.5660935 oai:zenodo.org:5660935 info:eu-repo/semantics/openAccess Three new species of the genus Oligobregma (Polychaeta, Scalibregmatidae) from the Scotia and Weddell Seas (Antarctica), pp. 35-45 in Zootaxa 1391 37-38 Biodiversity Taxonomy Animalia Annelida Polychaeta Scalibregmatidae Oligobregma Oligobregma blakei info:eu-repo/semantics/other publication-taxonomictreatment 2007 ftzenodo https://doi.org/10.5281/zenodo.566093510.5281/zenodo.17524010.5281/zenodo.17524110.5281/zenodo.5660934 2023-04-13T21:20:41Z Oligobregma blakei sp. nov. (Fig. 1 A–E) Holotype. Scotia Sea, northeast off Elephant Island, Sta. 46 7, 30 January 2002, 60° 38.35 ’S, 53 ° 57.36 ’W, 2889–2892 m, EBS (ZMH, P 24732). Etymology. The species is named after J.A. Blake, whose monograph about the Scalibregmatidae of the Southern oceans contributed immensely to this study. Diagnosis. The distinguishing character of this species is the presence of acicular spines in the first and second notopodia arranged in single rows. Description Holotype of medium size, 3 mm long and 0.5 mm wide for 19 segments; posterior segments regenerating (Fig. 1 A). Colour in alcohol: white to a light tan; body anteriorly expanded. Prostomium bearing 2 rounded lobes anterolaterally; no eyes; nuchal organs not apparent; peristomium well developed, achaetous (Fig. 1 B). Anterior 4 chaetigers smooth, lacking annulations; chaetigers 5–7 triannulated, subsequent chaetigers quadriannulated; parapodia of anterior segments reduced to simple lobes, becoming more distinct in median and posterior region; median and posterior ventral and dorsal cirri short and conical (Fig. 1 C); interramal sense organs not apparent. Acicular spines present in notopodia of chaetigers 1 and 2, accompanied by simple capillaries; spines smooth and sickleshaped (Fig. 1 D), arranged in single rows; long, simple capillaries in both rami of all chaetigers; small furcate chaetae present from chaetiger 4, covered by a fringe of short hairs (Fig. 1 E); length of tynes unequal, one tyne about twice as long as other. Pygidium terminal, trilobate, without cirri (Fig. 1 A). Remarks. The species is only represented by the holotype. Its posterior end is in the process of regeneration. Posterior chaetigers might therefore differ from additional specimens of this species. The description of anterior characters, however, is sufficient to define a species within the genus Oligobrema since the arrangement of the acicular spines, the surface texture of anterior segments, and the presence of eyes and nuchal organs are the ... Other/Unknown Material Elephant Island Scotia Sea Zenodo Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) Scotia Sea |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Annelida Polychaeta Scalibregmatidae Oligobregma Oligobregma blakei |
spellingShingle |
Biodiversity Taxonomy Animalia Annelida Polychaeta Scalibregmatidae Oligobregma Oligobregma blakei Schüller, Myriam Hilbig, Brigitte Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Annelida Polychaeta Scalibregmatidae Oligobregma Oligobregma blakei |
description |
Oligobregma blakei sp. nov. (Fig. 1 A–E) Holotype. Scotia Sea, northeast off Elephant Island, Sta. 46 7, 30 January 2002, 60° 38.35 ’S, 53 ° 57.36 ’W, 2889–2892 m, EBS (ZMH, P 24732). Etymology. The species is named after J.A. Blake, whose monograph about the Scalibregmatidae of the Southern oceans contributed immensely to this study. Diagnosis. The distinguishing character of this species is the presence of acicular spines in the first and second notopodia arranged in single rows. Description Holotype of medium size, 3 mm long and 0.5 mm wide for 19 segments; posterior segments regenerating (Fig. 1 A). Colour in alcohol: white to a light tan; body anteriorly expanded. Prostomium bearing 2 rounded lobes anterolaterally; no eyes; nuchal organs not apparent; peristomium well developed, achaetous (Fig. 1 B). Anterior 4 chaetigers smooth, lacking annulations; chaetigers 5–7 triannulated, subsequent chaetigers quadriannulated; parapodia of anterior segments reduced to simple lobes, becoming more distinct in median and posterior region; median and posterior ventral and dorsal cirri short and conical (Fig. 1 C); interramal sense organs not apparent. Acicular spines present in notopodia of chaetigers 1 and 2, accompanied by simple capillaries; spines smooth and sickleshaped (Fig. 1 D), arranged in single rows; long, simple capillaries in both rami of all chaetigers; small furcate chaetae present from chaetiger 4, covered by a fringe of short hairs (Fig. 1 E); length of tynes unequal, one tyne about twice as long as other. Pygidium terminal, trilobate, without cirri (Fig. 1 A). Remarks. The species is only represented by the holotype. Its posterior end is in the process of regeneration. Posterior chaetigers might therefore differ from additional specimens of this species. The description of anterior characters, however, is sufficient to define a species within the genus Oligobrema since the arrangement of the acicular spines, the surface texture of anterior segments, and the presence of eyes and nuchal organs are the ... |
format |
Other/Unknown Material |
author |
Schüller, Myriam Hilbig, Brigitte |
author_facet |
Schüller, Myriam Hilbig, Brigitte |
author_sort |
Schüller, Myriam |
title |
Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. |
title_short |
Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. |
title_full |
Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. |
title_fullStr |
Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. |
title_full_unstemmed |
Oligobregma blakei Schüller & Hilbig, 2007, sp. nov. |
title_sort |
oligobregma blakei schüller & hilbig, 2007, sp. nov. |
publishDate |
2007 |
url |
https://zenodo.org/record/5660935 https://doi.org/10.5281/zenodo.5660935 |
long_lat |
ENVELOPE(-55.184,-55.184,-61.085,-61.085) |
geographic |
Elephant Island Scotia Sea |
geographic_facet |
Elephant Island Scotia Sea |
genre |
Elephant Island Scotia Sea |
genre_facet |
Elephant Island Scotia Sea |
op_source |
Three new species of the genus Oligobregma (Polychaeta, Scalibregmatidae) from the Scotia and Weddell Seas (Antarctica), pp. 35-45 in Zootaxa 1391 37-38 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/CF56AB74FFF4FFCCFF0F3504FD7362DC doi:10.5281/zenodo.175240 http://publication.plazi.org/id/336FD30CFFF6FFCFFF983426FFCA661E doi:10.5281/zenodo.175241 http://zoobank.org/26F8EDF1-BE55-4E18-BCEA-6B5E388E2169 doi:10.5281/zenodo.5660934 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5660935 https://doi.org/10.5281/zenodo.5660935 oai:zenodo.org:5660935 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.566093510.5281/zenodo.17524010.5281/zenodo.17524110.5281/zenodo.5660934 |
_version_ |
1767959419824373760 |