Lamispina chilensis Salazar-Vallejo 2014, n. sp.
Lamispina chilensis n. sp. Figure 18 Therochaetella chilensis Hartman, 1967:128–129 ( partim ). Type material. Southeastern Pacific Ocean. Holotype (USNM 56470) and one paratype (USNM 1251914), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 752 (33°14' S, 71°47' W),...
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Online Access: | https://dx.doi.org/10.5281/zenodo.4952655 https://zenodo.org/record/4952655 |
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openpolar |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
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Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Flabelligeridae Lamispina Lamispina chilensis |
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Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Flabelligeridae Lamispina Lamispina chilensis Salazar-Vallejo, Sergio I. Lamispina chilensis Salazar-Vallejo 2014, n. sp. |
topic_facet |
Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Flabelligeridae Lamispina Lamispina chilensis |
description |
Lamispina chilensis n. sp. Figure 18 Therochaetella chilensis Hartman, 1967:128–129 ( partim ). Type material. Southeastern Pacific Ocean. Holotype (USNM 56470) and one paratype (USNM 1251914), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 752 (33°14' S, 71°47' W), 209 m, 26 Sep. 1963 (paratype anterior fragment 7 mm long, 1 mm wide, cephalic cage 3 mm long, 21 chaetigers). Paratype (USNM 1251915), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 753 (33°16' S, 71°47' W), 192 m, 26 Sep. 1963 (anterior fragment 5 mm long, 1 mm wide, cephalic cage 2.5 mm long, 18 chaetigers). Additional material. Southeastern Pacific Ocean. One specimen (LACM 6532), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 752 (33°14' S, 71°47' W), 209 m, 26 Sep. 1963 (7 mm long, 1.5 mm wide, cephalic cage 4 mm long, 23 chaetigers; gonopodial lobes on chaetiger 5). Description. Holotype (USNM 56470) an anterior fragment, cylindrical, anteriorly swollen, posteriorly reduced in diameter from chaetiger 11 (Fig. 18A); 7.5 mm long, 1 mm wide, cephalic cage 3.5 mm long, 23 chaetigers (constricted region starts at chaetiger 12). Body papillae long, capitate, arranged in single transverse series at chaetigers 1–3, then in two transverse series; dorsal papillae longer, parapodial papillae long, ventral papillae shorter (Fig. 18B). All with a thin crust of fine sediment particles. Cephalic hood exposed, short, margin papillated (Fig. 18A). Prostomium low cone, eyes not seen; caruncle short, triangular. Palp and branchial features observed in a non-type specimen (LACM 6532). Palps thick, slightly shorter than longest branchiae; palp keels low, rounded. Lateral lips well developed; ventral lip rounded, dorsal lip reduced. Branchiae cirriform, arranged as a single row with eight filaments, larger ones slightly longer than palps. Nephridial lobes not seen. Cephalic cage chaetae 3.5x longer than body width; chaetigers 1–3 forming cephalic cage. Chaetae arranged in short groups; chaetiger 1 dorsolateral, lateral in chaetigers 2–3; 4–5 chaetae per bundle. Anterior dorsal margin of first chaetiger papillated, papillae as long as dorsal ones in following chaetigers. Chaetigers 1–3 increasing in size posteriorly. Chaetal transition from cephalic cage to body chaetae abrupt; lamispines from chaetiger 4. Gonopodial lobes on chaetiger 5, low, rounded, pale lobes with about 5 papillae. Parapodia well developed; especially on anterior chaetigers (1–5). Parapodia lateral; medial neuropodia ventrolateral (Fig. 18C). Notopodia short triangular flat lobes, with one smaller prechaetal and two longer postchaetal papillae in anterior chaetigers (largest inferior to chaetae); posterior region with prechaetal papillae longer. Neuropodia rounded flat lobes, larger than notopodial ones, with one prechaetal and two postchaetal papillae (largest inferior to neurochaetae). Medial notochaetae multiarticulate capillaries, arranged in short transverse series; articles short in small basal region, then long medially and distally (Fig. 18D), about 5 per fascicle, as long as 2/3 body width in anterior region, or as long as body width in constricted region. Neurochaetae multiarticulated capillaries in chaetigers 1–3; from chaetiger 4 anchylosed, aristate lamispines, arranged in transverse series, 7–8 per bundle (Fig. 18E), about as long as body width. Lamispines with anchylosed short articles basally and medially, distally hyaline, with long arista (Fig. 18F). Posterior end unknown. Etymology. This species is named after the country where it was originally found. Remarks. Lamispina chilensis n. sp. resembles L . kerguelarum (Grube, 1877) n. comb. because both have stiff body papillae, tapered or conical, and lamispines tapered with tips acuminate. These two species can be separated from each other by the start of lamispines, and by the number of notochaetae in medial segments, and transverse series of papillae per segment. In L. chilensis lamispines start in chaetiger 4, there are 5 notochaetae per bundle, and two transverse series of papillae per segment, whereas in L. kerguelarum lamispines start in chaetiger 3, its notochaetae are more abundant (9–12 per bundle), and it has more transverse series of papillae (4) per segment. The combination introduced by Olga Hartman, Therochaetella chilensis, has been restricted based upon the holotype, and transferred to Trophoniella Hartman, 1959 (Salazar-Vallejo 2012b). Distribution. Only known from the type locality, off Santiago, Chile, in 192–209 m depth. : Published as part of Salazar-Vallejo, Sergio I., 2014, Revision of Pherusa Oken, 1807 (Polychaeta: Flabelligeridae), pp. 1-61 in Zootaxa 3886 (1) on pages 44-45, DOI: 10.11646/zootaxa.3886.1.1, http://zenodo.org/record/4951874 : {"references": ["Hartman, O. (1967) Polychaetous annelids collected by the USNS Eltanin and Staten Islands Cruises, chiefly from Antarctic seas. Allan Hancock Monographs in Marine Biology, 2, 1 - 387.", "Grube, A. E. (1877) Annelidenausbeute von S. M. S. Gazelle. Monatsbericht der Koniglich Preussischen Akademie der Wissenschafen zu Berlin, 1877, 507 - 554.", "Hartman, O. (1959) Catalogue of the Polychaetous Annelids of the World, 2. Allan Hancock Foundation Occasional Papers, 23, 355 - 628.", "Salazar-Vallejo, S. I. (2012 b) Revision of Trophoniella Hartman, 1959 (Polychaeta, Flabelligeridae). Zoosystema, 34, 453 - 519. http: // dx. doi. org / 10.5252 / z 2012 n 3 a 1"]} |
format |
Text |
author |
Salazar-Vallejo, Sergio I. |
author_facet |
Salazar-Vallejo, Sergio I. |
author_sort |
Salazar-Vallejo, Sergio I. |
title |
Lamispina chilensis Salazar-Vallejo 2014, n. sp. |
title_short |
Lamispina chilensis Salazar-Vallejo 2014, n. sp. |
title_full |
Lamispina chilensis Salazar-Vallejo 2014, n. sp. |
title_fullStr |
Lamispina chilensis Salazar-Vallejo 2014, n. sp. |
title_full_unstemmed |
Lamispina chilensis Salazar-Vallejo 2014, n. sp. |
title_sort |
lamispina chilensis salazar-vallejo 2014, n. sp. |
publisher |
Zenodo |
publishDate |
2014 |
url |
https://dx.doi.org/10.5281/zenodo.4952655 https://zenodo.org/record/4952655 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://zenodo.org/record/4951874 http://publication.plazi.org/id/8670FFAB3246FF9AFFA0FF872F77FFEA http://zoobank.org/6ADD860C-D60C-448D-BC11-19EDB74013EE https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.3886.1.1 http://zenodo.org/record/4951874 http://publication.plazi.org/id/8670FFAB3246FF9AFFA0FF872F77FFEA https://dx.doi.org/10.5281/zenodo.4951984 http://zoobank.org/6ADD860C-D60C-448D-BC11-19EDB74013EE https://dx.doi.org/10.5281/zenodo.4952656 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.4952655 https://doi.org/10.11646/zootaxa.3886.1.1 https://doi.org/10.5281/zenodo.4951984 https://doi.org/10.5281/zenodo.4952656 |
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ftdatacite:10.5281/zenodo.4952655 2023-05-15T13:33:47+02:00 Lamispina chilensis Salazar-Vallejo 2014, n. sp. Salazar-Vallejo, Sergio I. 2014 https://dx.doi.org/10.5281/zenodo.4952655 https://zenodo.org/record/4952655 unknown Zenodo http://zenodo.org/record/4951874 http://publication.plazi.org/id/8670FFAB3246FF9AFFA0FF872F77FFEA http://zoobank.org/6ADD860C-D60C-448D-BC11-19EDB74013EE https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.3886.1.1 http://zenodo.org/record/4951874 http://publication.plazi.org/id/8670FFAB3246FF9AFFA0FF872F77FFEA https://dx.doi.org/10.5281/zenodo.4951984 http://zoobank.org/6ADD860C-D60C-448D-BC11-19EDB74013EE https://dx.doi.org/10.5281/zenodo.4952656 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Animalia Annelida Polychaeta Terebellida Flabelligeridae Lamispina Lamispina chilensis Text Taxonomic treatment article-journal ScholarlyArticle 2014 ftdatacite https://doi.org/10.5281/zenodo.4952655 https://doi.org/10.11646/zootaxa.3886.1.1 https://doi.org/10.5281/zenodo.4951984 https://doi.org/10.5281/zenodo.4952656 2021-11-05T12:55:41Z Lamispina chilensis n. sp. Figure 18 Therochaetella chilensis Hartman, 1967:128–129 ( partim ). Type material. Southeastern Pacific Ocean. Holotype (USNM 56470) and one paratype (USNM 1251914), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 752 (33°14' S, 71°47' W), 209 m, 26 Sep. 1963 (paratype anterior fragment 7 mm long, 1 mm wide, cephalic cage 3 mm long, 21 chaetigers). Paratype (USNM 1251915), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 753 (33°16' S, 71°47' W), 192 m, 26 Sep. 1963 (anterior fragment 5 mm long, 1 mm wide, cephalic cage 2.5 mm long, 18 chaetigers). Additional material. Southeastern Pacific Ocean. One specimen (LACM 6532), off Santiago, Chile, RV Eltanin Antarctic Expedition, cruise 26, Sta. 752 (33°14' S, 71°47' W), 209 m, 26 Sep. 1963 (7 mm long, 1.5 mm wide, cephalic cage 4 mm long, 23 chaetigers; gonopodial lobes on chaetiger 5). Description. Holotype (USNM 56470) an anterior fragment, cylindrical, anteriorly swollen, posteriorly reduced in diameter from chaetiger 11 (Fig. 18A); 7.5 mm long, 1 mm wide, cephalic cage 3.5 mm long, 23 chaetigers (constricted region starts at chaetiger 12). Body papillae long, capitate, arranged in single transverse series at chaetigers 1–3, then in two transverse series; dorsal papillae longer, parapodial papillae long, ventral papillae shorter (Fig. 18B). All with a thin crust of fine sediment particles. Cephalic hood exposed, short, margin papillated (Fig. 18A). Prostomium low cone, eyes not seen; caruncle short, triangular. Palp and branchial features observed in a non-type specimen (LACM 6532). Palps thick, slightly shorter than longest branchiae; palp keels low, rounded. Lateral lips well developed; ventral lip rounded, dorsal lip reduced. Branchiae cirriform, arranged as a single row with eight filaments, larger ones slightly longer than palps. Nephridial lobes not seen. Cephalic cage chaetae 3.5x longer than body width; chaetigers 1–3 forming cephalic cage. Chaetae arranged in short groups; chaetiger 1 dorsolateral, lateral in chaetigers 2–3; 4–5 chaetae per bundle. Anterior dorsal margin of first chaetiger papillated, papillae as long as dorsal ones in following chaetigers. Chaetigers 1–3 increasing in size posteriorly. Chaetal transition from cephalic cage to body chaetae abrupt; lamispines from chaetiger 4. Gonopodial lobes on chaetiger 5, low, rounded, pale lobes with about 5 papillae. Parapodia well developed; especially on anterior chaetigers (1–5). Parapodia lateral; medial neuropodia ventrolateral (Fig. 18C). Notopodia short triangular flat lobes, with one smaller prechaetal and two longer postchaetal papillae in anterior chaetigers (largest inferior to chaetae); posterior region with prechaetal papillae longer. Neuropodia rounded flat lobes, larger than notopodial ones, with one prechaetal and two postchaetal papillae (largest inferior to neurochaetae). Medial notochaetae multiarticulate capillaries, arranged in short transverse series; articles short in small basal region, then long medially and distally (Fig. 18D), about 5 per fascicle, as long as 2/3 body width in anterior region, or as long as body width in constricted region. Neurochaetae multiarticulated capillaries in chaetigers 1–3; from chaetiger 4 anchylosed, aristate lamispines, arranged in transverse series, 7–8 per bundle (Fig. 18E), about as long as body width. Lamispines with anchylosed short articles basally and medially, distally hyaline, with long arista (Fig. 18F). Posterior end unknown. Etymology. This species is named after the country where it was originally found. Remarks. Lamispina chilensis n. sp. resembles L . kerguelarum (Grube, 1877) n. comb. because both have stiff body papillae, tapered or conical, and lamispines tapered with tips acuminate. These two species can be separated from each other by the start of lamispines, and by the number of notochaetae in medial segments, and transverse series of papillae per segment. In L. chilensis lamispines start in chaetiger 4, there are 5 notochaetae per bundle, and two transverse series of papillae per segment, whereas in L. kerguelarum lamispines start in chaetiger 3, its notochaetae are more abundant (9–12 per bundle), and it has more transverse series of papillae (4) per segment. The combination introduced by Olga Hartman, Therochaetella chilensis, has been restricted based upon the holotype, and transferred to Trophoniella Hartman, 1959 (Salazar-Vallejo 2012b). Distribution. Only known from the type locality, off Santiago, Chile, in 192–209 m depth. : Published as part of Salazar-Vallejo, Sergio I., 2014, Revision of Pherusa Oken, 1807 (Polychaeta: Flabelligeridae), pp. 1-61 in Zootaxa 3886 (1) on pages 44-45, DOI: 10.11646/zootaxa.3886.1.1, http://zenodo.org/record/4951874 : {"references": ["Hartman, O. (1967) Polychaetous annelids collected by the USNS Eltanin and Staten Islands Cruises, chiefly from Antarctic seas. Allan Hancock Monographs in Marine Biology, 2, 1 - 387.", "Grube, A. E. (1877) Annelidenausbeute von S. M. S. Gazelle. Monatsbericht der Koniglich Preussischen Akademie der Wissenschafen zu Berlin, 1877, 507 - 554.", "Hartman, O. (1959) Catalogue of the Polychaetous Annelids of the World, 2. Allan Hancock Foundation Occasional Papers, 23, 355 - 628.", "Salazar-Vallejo, S. I. (2012 b) Revision of Trophoniella Hartman, 1959 (Polychaeta, Flabelligeridae). Zoosystema, 34, 453 - 519. http: // dx. doi. org / 10.5252 / z 2012 n 3 a 1"]} Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Pacific |