Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp.
Bradycalanus abyssicolus n. sp. (Figs 29, 37–40) Type locality. 64.999o S, 43.020o W. Material examined. ANTXIX/4, Stn 135-4, EBS-S, 4678 m 1♀ (11.0 mm) holotype; paratypes: DIVA III, EBS-S: Stn 534, 4605– 4585 m, 1♀ (11.5 mm); Stn 537, 4605– 4585 m, 1♀ (11.8 mm); St...
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2017
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Online Access: | https://dx.doi.org/10.5281/zenodo.6029172 https://zenodo.org/record/6029172 |
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ftdatacite:10.5281/zenodo.6029172 |
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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 Arthropoda Maxillopoda Calanoida Megacalanidae Bradycalanus Bradycalanus abyssicolus |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Maxillopoda Calanoida Megacalanidae Bradycalanus Bradycalanus abyssicolus Bradford-Grieve, Janet M. Blanco-Bercial, Leocadio Boxshall, Geoffrey A. Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Maxillopoda Calanoida Megacalanidae Bradycalanus Bradycalanus abyssicolus |
description |
Bradycalanus abyssicolus n. sp. (Figs 29, 37–40) Type locality. 64.999o S, 43.020o W. Material examined. ANTXIX/4, Stn 135-4, EBS-S, 4678 m 1♀ (11.0 mm) holotype; paratypes: DIVA III, EBS-S: Stn 534, 4605– 4585 m, 1♀ (11.5 mm); Stn 537, 4605– 4585 m, 1♀ (11.8 mm); Stn 605, 5168– 5184 m, 1♀ (11.8 mm). Type specimens . Deposited in the collection of the Zoological Museum, University of Hamburg. Holotype female: ZMH K-44181; Paratype series: ZMH K-44182-ZMH K-44184. Morphological description. Following description based on holotype and paratype specimens from ANTXIX/4, Stn 135-4. As for genus with following specific level features. Female (Fig. 37 A–E). Total length 11.1 mm (mean = 11.5 mm, range, 11.0– 11.8 mm, n = 4). Anterior head crested, rostral base thick, rostrum directed posteriorly in lateral view with pair of curled tapering filaments. Pedigerous somite 5 with short, symmetrical posterior lappets with posteroventral extension usually directed posteriorly (bent ventrally in illustrated specimen); lappets extending less than one third of way along genital double-somite. Genital double-somite in dorsal view with slight bulge at about midlength; in lateral view, genital area with posterior tranverse ridge giving ventral outline flattened appearance. Antennule (Figs 37 B, 38A–F) extends about 5–6 segments beyond caudal rami and length of antennule segments (µm) as follows. Measurements taken along posterior border of each segment but two (posterior (shortest) and anterior) measurements taken of ancestral segment I. I (371, 775); II–IV (1064); V (280); VI (277); VII (322); VIII (322); IX (332); X–XI (636); XII (460); XIII (458); XIV (555); XV (631); XVI (661); XVII (745); XVIII (792); XIX (777); XX (795); XXI (782); XXII (542); XXIII (550); XXIV (542); XXV (537); XXVI (376); XXVII (438); XXVIII (10). Antenna (Fig. 38 G) exopod segments I– III each with vestigial seta, segment IV with relatively well-developed seta extending as far as base of seta on segment IX. Maxillule (Fig. 39 B, C) coxal endite with only 2 setae; endopod segment 3 with posterior surface seta moderately long. Maxilliped (Fig. 39 G) second most proximal seta on endopod segments 3–5 one third length of longest seta. Leg 1 (Fig. 37 F) exopod segment 3 elongate and narrow, nearly 5 times as long as maximum width; distal border of endopod segment 1 extends to distal border of exopod segment 1; exopod outer spines: on segment 1 extends one third distance to outer spine on segment 2; on segment 2 extends about one third distance to proximal outer spine on segment 3; segment 3 proximal spine extends half distance to outer distal spine. Male. Unknown Etymology. The species name is derived from the Latin words abyssus = ‘deep sea’ and colus = ‘dwelling in’, gender masculine. This name refers to the discovery of this species at depths greater than 4000 m. Distribution. Bradycalanus abyssicolus n.sp. is an abyssopelagic species living at depths> 4000 m. It has been found in the Argentine Basin, the Central Weddell Sea and the equatorial Atlantic Ocean (Fig. 29, Table 1). Species comparisons. This species is easily distinguished from other described Bradycalanus as it is the only species that has a crested head, a reduced number of setae on the coxal endite of the maxillule, and a narrow leg 1 exopod, in particular, exopod segment 3 which is nearly 5 times its maximum width (Table 8). : Published as part of Bradford-Grieve, Janet M., Blanco-Bercial, Leocadio & Boxshall, Geoffrey A., 2017, Revision of Family Megacalanidae (Copepoda: Calanoida), pp. 1-183 in Zootaxa 4229 (1) on pages 68-73, DOI: 10.5281/zenodo.293480 |
format |
Text |
author |
Bradford-Grieve, Janet M. Blanco-Bercial, Leocadio Boxshall, Geoffrey A. |
author_facet |
Bradford-Grieve, Janet M. Blanco-Bercial, Leocadio Boxshall, Geoffrey A. |
author_sort |
Bradford-Grieve, Janet M. |
title |
Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. |
title_short |
Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. |
title_full |
Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. |
title_fullStr |
Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. |
title_full_unstemmed |
Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. |
title_sort |
bradycalanus abyssicolus bradford-grieve, blanco-bercial & boxshall, 2017, n. sp. |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://dx.doi.org/10.5281/zenodo.6029172 https://zenodo.org/record/6029172 |
long_lat |
ENVELOPE(-55.233,-55.233,-61.250,-61.250) ENVELOPE(9.895,9.895,63.645,63.645) |
geographic |
Weddell Sea Weddell Argentine Blanco Seta |
geographic_facet |
Weddell Sea Weddell Argentine Blanco Seta |
genre |
Weddell Sea |
genre_facet |
Weddell Sea |
op_relation |
http://publication.plazi.org/id/FFC54111BB7AFFBB0129672DFFD4026A http://table.plazi.org/id/DF2AD8F7BB7CFFBD01506504F8E5003D http://zoobank.org/BCDF8F6F-B8B4-4A9D-A8B8-7EDCEF1100BE https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.293480 http://publication.plazi.org/id/FFC54111BB7AFFBB0129672DFFD4026A https://dx.doi.org/10.5281/zenodo.293509 https://dx.doi.org/10.5281/zenodo.293516 https://dx.doi.org/10.5281/zenodo.311019 https://dx.doi.org/10.5281/zenodo.293518 https://dx.doi.org/10.5281/zenodo.293519 http://table.plazi.org/id/DF2AD8F7BB7CFFBD01506504F8E5003D http://zoobank.org/BCDF8F6F-B8B4-4A9D-A8B8-7EDCEF1100BE https://dx.doi.org/10.5281/zenodo.6029171 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.6029172 https://doi.org/10.5281/zenodo.293480 https://doi.org/10.5281/zenodo.293509 https://doi.org/10.5281/zenodo.293516 https://doi.org/10.5281/zenodo.311019 https://doi.org/10.5281/zenodo.293518 https://doi.or |
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1766233662401019904 |
spelling |
ftdatacite:10.5281/zenodo.6029172 2023-05-15T18:43:20+02:00 Bradycalanus abyssicolus Bradford-Grieve, Blanco-Bercial & Boxshall, 2017, n. sp. Bradford-Grieve, Janet M. Blanco-Bercial, Leocadio Boxshall, Geoffrey A. 2017 https://dx.doi.org/10.5281/zenodo.6029172 https://zenodo.org/record/6029172 unknown Zenodo http://publication.plazi.org/id/FFC54111BB7AFFBB0129672DFFD4026A http://table.plazi.org/id/DF2AD8F7BB7CFFBD01506504F8E5003D http://zoobank.org/BCDF8F6F-B8B4-4A9D-A8B8-7EDCEF1100BE https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5281/zenodo.293480 http://publication.plazi.org/id/FFC54111BB7AFFBB0129672DFFD4026A https://dx.doi.org/10.5281/zenodo.293509 https://dx.doi.org/10.5281/zenodo.293516 https://dx.doi.org/10.5281/zenodo.311019 https://dx.doi.org/10.5281/zenodo.293518 https://dx.doi.org/10.5281/zenodo.293519 http://table.plazi.org/id/DF2AD8F7BB7CFFBD01506504F8E5003D http://zoobank.org/BCDF8F6F-B8B4-4A9D-A8B8-7EDCEF1100BE https://dx.doi.org/10.5281/zenodo.6029171 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 Arthropoda Maxillopoda Calanoida Megacalanidae Bradycalanus Bradycalanus abyssicolus article-journal ScholarlyArticle Taxonomic treatment Text 2017 ftdatacite https://doi.org/10.5281/zenodo.6029172 https://doi.org/10.5281/zenodo.293480 https://doi.org/10.5281/zenodo.293509 https://doi.org/10.5281/zenodo.293516 https://doi.org/10.5281/zenodo.311019 https://doi.org/10.5281/zenodo.293518 https://doi.or 2022-04-01T09:41:59Z Bradycalanus abyssicolus n. sp. (Figs 29, 37–40) Type locality. 64.999o S, 43.020o W. Material examined. ANTXIX/4, Stn 135-4, EBS-S, 4678 m 1♀ (11.0 mm) holotype; paratypes: DIVA III, EBS-S: Stn 534, 4605– 4585 m, 1♀ (11.5 mm); Stn 537, 4605– 4585 m, 1♀ (11.8 mm); Stn 605, 5168– 5184 m, 1♀ (11.8 mm). Type specimens . Deposited in the collection of the Zoological Museum, University of Hamburg. Holotype female: ZMH K-44181; Paratype series: ZMH K-44182-ZMH K-44184. Morphological description. Following description based on holotype and paratype specimens from ANTXIX/4, Stn 135-4. As for genus with following specific level features. Female (Fig. 37 A–E). Total length 11.1 mm (mean = 11.5 mm, range, 11.0– 11.8 mm, n = 4). Anterior head crested, rostral base thick, rostrum directed posteriorly in lateral view with pair of curled tapering filaments. Pedigerous somite 5 with short, symmetrical posterior lappets with posteroventral extension usually directed posteriorly (bent ventrally in illustrated specimen); lappets extending less than one third of way along genital double-somite. Genital double-somite in dorsal view with slight bulge at about midlength; in lateral view, genital area with posterior tranverse ridge giving ventral outline flattened appearance. Antennule (Figs 37 B, 38A–F) extends about 5–6 segments beyond caudal rami and length of antennule segments (µm) as follows. Measurements taken along posterior border of each segment but two (posterior (shortest) and anterior) measurements taken of ancestral segment I. I (371, 775); II–IV (1064); V (280); VI (277); VII (322); VIII (322); IX (332); X–XI (636); XII (460); XIII (458); XIV (555); XV (631); XVI (661); XVII (745); XVIII (792); XIX (777); XX (795); XXI (782); XXII (542); XXIII (550); XXIV (542); XXV (537); XXVI (376); XXVII (438); XXVIII (10). Antenna (Fig. 38 G) exopod segments I– III each with vestigial seta, segment IV with relatively well-developed seta extending as far as base of seta on segment IX. Maxillule (Fig. 39 B, C) coxal endite with only 2 setae; endopod segment 3 with posterior surface seta moderately long. Maxilliped (Fig. 39 G) second most proximal seta on endopod segments 3–5 one third length of longest seta. Leg 1 (Fig. 37 F) exopod segment 3 elongate and narrow, nearly 5 times as long as maximum width; distal border of endopod segment 1 extends to distal border of exopod segment 1; exopod outer spines: on segment 1 extends one third distance to outer spine on segment 2; on segment 2 extends about one third distance to proximal outer spine on segment 3; segment 3 proximal spine extends half distance to outer distal spine. Male. Unknown Etymology. The species name is derived from the Latin words abyssus = ‘deep sea’ and colus = ‘dwelling in’, gender masculine. This name refers to the discovery of this species at depths greater than 4000 m. Distribution. Bradycalanus abyssicolus n.sp. is an abyssopelagic species living at depths> 4000 m. It has been found in the Argentine Basin, the Central Weddell Sea and the equatorial Atlantic Ocean (Fig. 29, Table 1). Species comparisons. This species is easily distinguished from other described Bradycalanus as it is the only species that has a crested head, a reduced number of setae on the coxal endite of the maxillule, and a narrow leg 1 exopod, in particular, exopod segment 3 which is nearly 5 times its maximum width (Table 8). : Published as part of Bradford-Grieve, Janet M., Blanco-Bercial, Leocadio & Boxshall, Geoffrey A., 2017, Revision of Family Megacalanidae (Copepoda: Calanoida), pp. 1-183 in Zootaxa 4229 (1) on pages 68-73, DOI: 10.5281/zenodo.293480 Text Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Weddell Sea Weddell Argentine Blanco ENVELOPE(-55.233,-55.233,-61.250,-61.250) Seta ENVELOPE(9.895,9.895,63.645,63.645) |