Eubonellia longistomum DattaGupta 1981
Eubonellia longistomum DattaGupta, 1981 (Fig. 4D, E) MATERIAL EXAMINED. — East Equatorial Atlantic Ocean. Gulf of Guinea, BIOZAIRE 3, CP 11, stn ZB-D, 05°50.5840’S, 008°20.0380’E, 3978 m, 20.XII.2003, 1 ♀. DESCRIPTION Colour of proboscis of preserved specimen is cream, trunk is light pink. Only basa...
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ftzenodo:oai:zenodo.org:4520672 2023-05-15T17:38:41+02:00 Eubonellia longistomum DattaGupta 1981 Biseswar, Ramlall 2010-03-31 https://zenodo.org/record/4520672 https://doi.org/10.5281/zenodo.4520672 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/137387F1A071935FFF1BFECEFE803FAD doi:10.5252/z2010n1a7 http://zenodo.org/record/4520699 http://publication.plazi.org/id/EF4AFF89A07A9354FF8BFFD9FF963909 doi:10.5281/zenodo.4520715 doi:10.5281/zenodo.4520671 https://zenodo.org/communities/biosyslit https://zenodo.org/record/4520672 https://doi.org/10.5281/zenodo.4520672 oai:zenodo.org:4520672 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Report on deep-sea bonelliids (Echiura) from the East Equatorial Atlantic Ocean, pp. 139-154 in Zoosystema 32(1) 150 Biodiversity Taxonomy Animalia Echiura Polychaeta Echiuroidea Bonelliidae Eubonellia Eubonellia longistomum info:eu-repo/semantics/other publication-taxonomictreatment 2010 ftzenodo https://doi.org/10.5281/zenodo.452067210.5252/z2010n1a710.5281/zenodo.452071510.5281/zenodo.4520671 2023-03-10T16:26:28Z Eubonellia longistomum DattaGupta, 1981 (Fig. 4D, E) MATERIAL EXAMINED. — East Equatorial Atlantic Ocean. Gulf of Guinea, BIOZAIRE 3, CP 11, stn ZB-D, 05°50.5840’S, 008°20.0380’E, 3978 m, 20.XII.2003, 1 ♀. DESCRIPTION Colour of proboscis of preserved specimen is cream, trunk is light pink. Only basal stump of proboscis is attached to trunk, rest is missing. Lateral margins of proboscis curl inwards and unite at proximal end forming narrow lower lip ventral to mouth (Fig. 4D). Only about 25 mm of anterior end of trunk is intact, posterior part missing. Trunk is cylindrical, 10 mm across broadest part. Integument is smooth and devoid of papillae, single genital pore is located a few millimetres away from anterior tip of trunk (Fig. 4D). Ventral setae absent. Except for foregut, nerve cord and gonoduct, rest of internal organs missing. Single, sac-like gonoduct is located on right side of nerve cord (Fig. 4E). Gonostome distal in position, gonostomal lip with small lobes around margin (Fig. 4E). REMARKS Distinguishing features of the genus Eubonellia include a well-developed bifurcate proboscis; absence of ventral setae; single gonoduct on right side of nerve cord with terminal gonostome; anal vesicles are tubular. The species E. longistomum is described originally by DattaGupta (1981) based on specimens in which the distal ends of the probosces were missing. This species was later recorded and redescribed by Biseswar (2005) from specimens collected from the Porcupine Abyssal Plain in the North-East Atlantic. The present specimen from the east Equatorial Atlantic is incomplete. However, it conforms with the description given by DattaGupta (1981) in all essential respects except for minor differences in the structure of the proboscis. The discovery of E. longistomum in the East Equatorial Atlantic is a new record for this region and extends its range of distribution. Published as part of Biseswar, Ramlall, 2010, Report on deep-sea bonelliids (Echiura) from the East Equatorial Atlantic Ocean, pp. 139-154 in ... Other/Unknown Material North East Atlantic Zenodo Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Stump ENVELOPE(-153.167,-153.167,-86.183,-86.183) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Echiura Polychaeta Echiuroidea Bonelliidae Eubonellia Eubonellia longistomum |
spellingShingle |
Biodiversity Taxonomy Animalia Echiura Polychaeta Echiuroidea Bonelliidae Eubonellia Eubonellia longistomum Biseswar, Ramlall Eubonellia longistomum DattaGupta 1981 |
topic_facet |
Biodiversity Taxonomy Animalia Echiura Polychaeta Echiuroidea Bonelliidae Eubonellia Eubonellia longistomum |
description |
Eubonellia longistomum DattaGupta, 1981 (Fig. 4D, E) MATERIAL EXAMINED. — East Equatorial Atlantic Ocean. Gulf of Guinea, BIOZAIRE 3, CP 11, stn ZB-D, 05°50.5840’S, 008°20.0380’E, 3978 m, 20.XII.2003, 1 ♀. DESCRIPTION Colour of proboscis of preserved specimen is cream, trunk is light pink. Only basal stump of proboscis is attached to trunk, rest is missing. Lateral margins of proboscis curl inwards and unite at proximal end forming narrow lower lip ventral to mouth (Fig. 4D). Only about 25 mm of anterior end of trunk is intact, posterior part missing. Trunk is cylindrical, 10 mm across broadest part. Integument is smooth and devoid of papillae, single genital pore is located a few millimetres away from anterior tip of trunk (Fig. 4D). Ventral setae absent. Except for foregut, nerve cord and gonoduct, rest of internal organs missing. Single, sac-like gonoduct is located on right side of nerve cord (Fig. 4E). Gonostome distal in position, gonostomal lip with small lobes around margin (Fig. 4E). REMARKS Distinguishing features of the genus Eubonellia include a well-developed bifurcate proboscis; absence of ventral setae; single gonoduct on right side of nerve cord with terminal gonostome; anal vesicles are tubular. The species E. longistomum is described originally by DattaGupta (1981) based on specimens in which the distal ends of the probosces were missing. This species was later recorded and redescribed by Biseswar (2005) from specimens collected from the Porcupine Abyssal Plain in the North-East Atlantic. The present specimen from the east Equatorial Atlantic is incomplete. However, it conforms with the description given by DattaGupta (1981) in all essential respects except for minor differences in the structure of the proboscis. The discovery of E. longistomum in the East Equatorial Atlantic is a new record for this region and extends its range of distribution. Published as part of Biseswar, Ramlall, 2010, Report on deep-sea bonelliids (Echiura) from the East Equatorial Atlantic Ocean, pp. 139-154 in ... |
format |
Other/Unknown Material |
author |
Biseswar, Ramlall |
author_facet |
Biseswar, Ramlall |
author_sort |
Biseswar, Ramlall |
title |
Eubonellia longistomum DattaGupta 1981 |
title_short |
Eubonellia longistomum DattaGupta 1981 |
title_full |
Eubonellia longistomum DattaGupta 1981 |
title_fullStr |
Eubonellia longistomum DattaGupta 1981 |
title_full_unstemmed |
Eubonellia longistomum DattaGupta 1981 |
title_sort |
eubonellia longistomum dattagupta 1981 |
publishDate |
2010 |
url |
https://zenodo.org/record/4520672 https://doi.org/10.5281/zenodo.4520672 |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) ENVELOPE(-153.167,-153.167,-86.183,-86.183) |
geographic |
Curl Stump |
geographic_facet |
Curl Stump |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Report on deep-sea bonelliids (Echiura) from the East Equatorial Atlantic Ocean, pp. 139-154 in Zoosystema 32(1) 150 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/137387F1A071935FFF1BFECEFE803FAD doi:10.5252/z2010n1a7 http://zenodo.org/record/4520699 http://publication.plazi.org/id/EF4AFF89A07A9354FF8BFFD9FF963909 doi:10.5281/zenodo.4520715 doi:10.5281/zenodo.4520671 https://zenodo.org/communities/biosyslit https://zenodo.org/record/4520672 https://doi.org/10.5281/zenodo.4520672 oai:zenodo.org:4520672 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.452067210.5252/z2010n1a710.5281/zenodo.452071510.5281/zenodo.4520671 |
_version_ |
1766139229719494656 |