Orbiniella uniformis Hartman 1967
Orbiniella uniformis Hartman, 1967 Figure 55 Orbiniella uniformis Hartman, 1967: 106 –107; Rozbaczylo 1985: 130. Material examined. Antarctic Peninsula, Anvers Island, Arthur Harbor, USCG Staten Island Sta. 6 - 63, 24 Jan 1963, 64.77°S, 64.07°W, ~ 7 m, fish trap, holotype , and 2 paratypes (USNM 473...
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ftzenodo:oai:zenodo.org:4901829 2024-09-15T17:47:02+00:00 Orbiniella uniformis Hartman 1967 Blake, James A. 2017-12-31 https://doi.org/10.5281/zenodo.4901829 http://treatment.plazi.org/id/8F2387DD0665097FFF31F9DDFD1BFEDC unknown Zenodo https://doi.org/10.5281/zenodo.245827 http://publication.plazi.org/id/731AFFA50615090DFFA6FFEBFFDCFFC0 https://sibils.text-analytics.ch/search/collections/plazi/8F2387DD0665097FFF31F9DDFD1BFEDC https://doi.org/10.5281/zenodo.245881 http://zoobank.org/9345C596-8656-4B5C-AD8C-2FACF4E9240C https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.4901828 https://doi.org/10.5281/zenodo.4901829 oai:zenodo.org:4901829 http://treatment.plazi.org/id/8F2387DD0665097FFF31F9DDFD1BFEDC info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Polychaeta Orbiniidae from Antarctica, the Southern Ocean, the Abyssal Pacific Ocean, and off South America, pp. 1-145 in Zootaxa, 4218(1), 113-115, (2017-12-31) Biodiversity Taxonomy Animalia Annelida Polychaeta Orbiniidae Orbiniella Orbiniella uniformis info:eu-repo/semantics/other 2017 ftzenodo https://doi.org/10.5281/zenodo.490182910.5281/zenodo.24582710.5281/zenodo.24588110.5281/zenodo.4901828 2024-07-25T20:42:30Z Orbiniella uniformis Hartman, 1967 Figure 55 Orbiniella uniformis Hartman, 1967: 106 –107; Rozbaczylo 1985: 130. Material examined. Antarctic Peninsula, Anvers Island, Arthur Harbor, USCG Staten Island Sta. 6 - 63, 24 Jan 1963, 64.77°S, 64.07°W, ~ 7 m, fish trap, holotype , and 2 paratypes (USNM 47329–30). Description. Body long, linear, holotype 6 mm long, 0.4 mm wide for 30 setigerous segments. Body generally uniform in overall appearance, with a weakly defined thoracic region only vaguely separated from an abdominal region at setiger 6. Prostomium short, broadly rounded on anterior margin (Fig. 55 A); peristomium 3x as long as prostomium, with two smoothly rounded rings, second forming ventral oral lips. Noto- and neuropodia of setigers 1–5 with few long, thin, tapering crenulated capillaries (Fig. 55 D); capillaries from setiger 6 and subsequent segments shorter, thicker, with distinct curve or bend in shaft (Figs. 55 E–F); crenulations of thoracic setae extending along most of exposed setal shaft; in abdominal segments crenulations occuring only from bend of shaft. Abdominal neuropodia with 2–3 emergent, pointed aciculae (Figs. 55 G–H). Setigers 16–19 swollen, with several large eggs about 150 µm in longest dimension (Fig. 55 B). Pygidium with two large ventral lobes bearing two short, dorsal cirriform appendages (Fig. 55 C). Remarks. Orbiniella uniformis was well described by Hartman (1967). Illustrations are presented here for the first time. The long threadlike nature of this species readily distinguishes it from other orbiniids encountered in this study. Orbiniella uniformis is most closely related to four other shallow-water species (Table 2). Eyespots are reported for O. nuda, O. plumisetesa, O. annulata , and absent in O. minuta and O. uniformis . Further, while the pygidium all of these species consists of two rounded lobes, O. uniformis is the only one with two short dorsal cirri. Distribution. Antarctic Peninsula, low water. Published as part of Blake, James A., 2017, Polychaeta Orbiniidae from ... Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Anvers Island Zenodo |
institution |
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collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Annelida Polychaeta Orbiniidae Orbiniella Orbiniella uniformis |
spellingShingle |
Biodiversity Taxonomy Animalia Annelida Polychaeta Orbiniidae Orbiniella Orbiniella uniformis Blake, James A. Orbiniella uniformis Hartman 1967 |
topic_facet |
Biodiversity Taxonomy Animalia Annelida Polychaeta Orbiniidae Orbiniella Orbiniella uniformis |
description |
Orbiniella uniformis Hartman, 1967 Figure 55 Orbiniella uniformis Hartman, 1967: 106 –107; Rozbaczylo 1985: 130. Material examined. Antarctic Peninsula, Anvers Island, Arthur Harbor, USCG Staten Island Sta. 6 - 63, 24 Jan 1963, 64.77°S, 64.07°W, ~ 7 m, fish trap, holotype , and 2 paratypes (USNM 47329–30). Description. Body long, linear, holotype 6 mm long, 0.4 mm wide for 30 setigerous segments. Body generally uniform in overall appearance, with a weakly defined thoracic region only vaguely separated from an abdominal region at setiger 6. Prostomium short, broadly rounded on anterior margin (Fig. 55 A); peristomium 3x as long as prostomium, with two smoothly rounded rings, second forming ventral oral lips. Noto- and neuropodia of setigers 1–5 with few long, thin, tapering crenulated capillaries (Fig. 55 D); capillaries from setiger 6 and subsequent segments shorter, thicker, with distinct curve or bend in shaft (Figs. 55 E–F); crenulations of thoracic setae extending along most of exposed setal shaft; in abdominal segments crenulations occuring only from bend of shaft. Abdominal neuropodia with 2–3 emergent, pointed aciculae (Figs. 55 G–H). Setigers 16–19 swollen, with several large eggs about 150 µm in longest dimension (Fig. 55 B). Pygidium with two large ventral lobes bearing two short, dorsal cirriform appendages (Fig. 55 C). Remarks. Orbiniella uniformis was well described by Hartman (1967). Illustrations are presented here for the first time. The long threadlike nature of this species readily distinguishes it from other orbiniids encountered in this study. Orbiniella uniformis is most closely related to four other shallow-water species (Table 2). Eyespots are reported for O. nuda, O. plumisetesa, O. annulata , and absent in O. minuta and O. uniformis . Further, while the pygidium all of these species consists of two rounded lobes, O. uniformis is the only one with two short dorsal cirri. Distribution. Antarctic Peninsula, low water. Published as part of Blake, James A., 2017, Polychaeta Orbiniidae from ... |
format |
Other/Unknown Material |
author |
Blake, James A. |
author_facet |
Blake, James A. |
author_sort |
Blake, James A. |
title |
Orbiniella uniformis Hartman 1967 |
title_short |
Orbiniella uniformis Hartman 1967 |
title_full |
Orbiniella uniformis Hartman 1967 |
title_fullStr |
Orbiniella uniformis Hartman 1967 |
title_full_unstemmed |
Orbiniella uniformis Hartman 1967 |
title_sort |
orbiniella uniformis hartman 1967 |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://doi.org/10.5281/zenodo.4901829 http://treatment.plazi.org/id/8F2387DD0665097FFF31F9DDFD1BFEDC |
genre |
Antarc* Antarctic Antarctic Peninsula Anvers Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Anvers Island |
op_source |
Polychaeta Orbiniidae from Antarctica, the Southern Ocean, the Abyssal Pacific Ocean, and off South America, pp. 1-145 in Zootaxa, 4218(1), 113-115, (2017-12-31) |
op_relation |
https://doi.org/10.5281/zenodo.245827 http://publication.plazi.org/id/731AFFA50615090DFFA6FFEBFFDCFFC0 https://sibils.text-analytics.ch/search/collections/plazi/8F2387DD0665097FFF31F9DDFD1BFEDC https://doi.org/10.5281/zenodo.245881 http://zoobank.org/9345C596-8656-4B5C-AD8C-2FACF4E9240C https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.4901828 https://doi.org/10.5281/zenodo.4901829 oai:zenodo.org:4901829 http://treatment.plazi.org/id/8F2387DD0665097FFF31F9DDFD1BFEDC |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.490182910.5281/zenodo.24582710.5281/zenodo.24588110.5281/zenodo.4901828 |
_version_ |
1810495538527731712 |