Bathyraja abyssicola
Bathyraja abyssicola (Gilbert, 1896) Description: The egg cases of Bathyraja abyssicola (Figure 2) are large, 108 to 111 mm in length, with MAW about 67-69% of ECL. Egg case surface texture coarse and very rough to the touch, striated, the surface is irregular and with rasp-like denticles. LKW is ve...
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ftdatacite:10.5281/zenodo.6250532 2023-05-15T13:15:22+02:00 Bathyraja abyssicola Ebert, David A. Chante D. Davis 2007 https://dx.doi.org/10.5281/zenodo.6250532 https://zenodo.org/record/6250532 unknown Zenodo http://publication.plazi.org/id/17349213E3557E9403747553351F425E http://zoobank.org/0C16005C-21BC-4252-823E-C83515FCFF28 https://zenodo.org/communities/biosyslit http://publication.plazi.org/id/17349213E3557E9403747553351F425E http://zoobank.org/0C16005C-21BC-4252-823E-C83515FCFF28 https://dx.doi.org/10.5281/zenodo.6250533 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 Chordata Elasmobranchii Rajiformes Arhynchobatidae Bathyraja Bathyraja abyssicola article-journal ScholarlyArticle Taxonomic treatment Text 2007 ftdatacite https://doi.org/10.5281/zenodo.6250532 https://doi.org/10.5281/zenodo.6250533 2022-04-01T12:19:26Z Bathyraja abyssicola (Gilbert, 1896) Description: The egg cases of Bathyraja abyssicola (Figure 2) are large, 108 to 111 mm in length, with MAW about 67-69% of ECL. Egg case surface texture coarse and very rough to the touch, striated, the surface is irregular and with rasp-like denticles. LKW is very narrow, <5% of MAW and with a distinct groove between the lateral keel and case proper. This groove is not present in any other ENP skate egg case. Lateral keels extend onto horns and are also present on inner horns. Anterior apron border of egg case broad and concave, anterior horns more robust than posteriors at base, becoming flattened and thread-like at tips. Posterior apron is nearly straight, broad, and transverse, about 10 mm wider than anterior apron. Posterior horns long, about two times length of anteriors and about 1.2 times ECL, curved inwards, each tapering to a thread-like tip. Attachment fibers present, originating on lateral keel near the junction of exterior base of posterior horns and case. Egg cases removed from a single specimen was a light golden brown in color. Remarks: Bathyraja abyssicola is a large, deepwater species usually found on the continental slope between 362 and 2906 m, although most records of its capture have come from> 1,000 m deep (Zorzi & Anderson, 1988). It is considered to be a rare species, but recent deepwater surveys along the ENP continental slope have revealed this skate to be more common than previously thought (unpublished data). To the best of our knowledge this is the first confirmed record and description of the egg case of this species. Material examined: CAS 224336, 141.0 cm TL, west of Alexander Island, Washington (47.4935 N, - 125.5185 W), 1428 m, 24 August 2004. : Published as part of David A. Ebert & Chante D. Davis, 2007, Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific., pp. 1-18 in Zootaxa 1393 on pages 3-4 Text Alexander Island DataCite Metadata Store (German National Library of Science and Technology) Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Chordata Elasmobranchii Rajiformes Arhynchobatidae Bathyraja Bathyraja abyssicola |
spellingShingle |
Biodiversity Taxonomy Animalia Chordata Elasmobranchii Rajiformes Arhynchobatidae Bathyraja Bathyraja abyssicola Ebert, David A. Chante D. Davis Bathyraja abyssicola |
topic_facet |
Biodiversity Taxonomy Animalia Chordata Elasmobranchii Rajiformes Arhynchobatidae Bathyraja Bathyraja abyssicola |
description |
Bathyraja abyssicola (Gilbert, 1896) Description: The egg cases of Bathyraja abyssicola (Figure 2) are large, 108 to 111 mm in length, with MAW about 67-69% of ECL. Egg case surface texture coarse and very rough to the touch, striated, the surface is irregular and with rasp-like denticles. LKW is very narrow, <5% of MAW and with a distinct groove between the lateral keel and case proper. This groove is not present in any other ENP skate egg case. Lateral keels extend onto horns and are also present on inner horns. Anterior apron border of egg case broad and concave, anterior horns more robust than posteriors at base, becoming flattened and thread-like at tips. Posterior apron is nearly straight, broad, and transverse, about 10 mm wider than anterior apron. Posterior horns long, about two times length of anteriors and about 1.2 times ECL, curved inwards, each tapering to a thread-like tip. Attachment fibers present, originating on lateral keel near the junction of exterior base of posterior horns and case. Egg cases removed from a single specimen was a light golden brown in color. Remarks: Bathyraja abyssicola is a large, deepwater species usually found on the continental slope between 362 and 2906 m, although most records of its capture have come from> 1,000 m deep (Zorzi & Anderson, 1988). It is considered to be a rare species, but recent deepwater surveys along the ENP continental slope have revealed this skate to be more common than previously thought (unpublished data). To the best of our knowledge this is the first confirmed record and description of the egg case of this species. Material examined: CAS 224336, 141.0 cm TL, west of Alexander Island, Washington (47.4935 N, - 125.5185 W), 1428 m, 24 August 2004. : Published as part of David A. Ebert & Chante D. Davis, 2007, Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific., pp. 1-18 in Zootaxa 1393 on pages 3-4 |
format |
Text |
author |
Ebert, David A. Chante D. Davis |
author_facet |
Ebert, David A. Chante D. Davis |
author_sort |
Ebert, David A. |
title |
Bathyraja abyssicola |
title_short |
Bathyraja abyssicola |
title_full |
Bathyraja abyssicola |
title_fullStr |
Bathyraja abyssicola |
title_full_unstemmed |
Bathyraja abyssicola |
title_sort |
bathyraja abyssicola |
publisher |
Zenodo |
publishDate |
2007 |
url |
https://dx.doi.org/10.5281/zenodo.6250532 https://zenodo.org/record/6250532 |
long_lat |
ENVELOPE(-69.895,-69.895,-71.287,-71.287) |
geographic |
Alexander Island Pacific |
geographic_facet |
Alexander Island Pacific |
genre |
Alexander Island |
genre_facet |
Alexander Island |
op_relation |
http://publication.plazi.org/id/17349213E3557E9403747553351F425E http://zoobank.org/0C16005C-21BC-4252-823E-C83515FCFF28 https://zenodo.org/communities/biosyslit http://publication.plazi.org/id/17349213E3557E9403747553351F425E http://zoobank.org/0C16005C-21BC-4252-823E-C83515FCFF28 https://dx.doi.org/10.5281/zenodo.6250533 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.6250532 https://doi.org/10.5281/zenodo.6250533 |
_version_ |
1766268222102831104 |