Sertularella pauciramosa Galea & Schories, sp. nov.
Sertularella pauciramosa Galea & Schories, sp. nov. (Plate 3 B; Fig. 6 F, H; 7 D; Table 8) Material examined . Taltal, Punta Morada, lat. - 25.36667, long. -70.45000, 20.iv.2012, 15 m, sample 13: up to 4 cm high, female colony on worm tube (paratype: MHNG-INVE- 86234). Taltal, lat. - 25.38333, l...
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Zenodo
2014
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Online Access: | https://dx.doi.org/10.5281/zenodo.6143195 https://zenodo.org/record/6143195 |
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ftdatacite:10.5281/zenodo.6143195 |
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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 Cnidaria Hydrozoa Leptothecata Sertulariidae Sertularella Sertularella pauciramosa |
spellingShingle |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Sertulariidae Sertularella Sertularella pauciramosa Galea, Horia R. Schories, Dirk Försterra, Günter Häussermann, Verena Sertularella pauciramosa Galea & Schories, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Cnidaria Hydrozoa Leptothecata Sertulariidae Sertularella Sertularella pauciramosa |
description |
Sertularella pauciramosa Galea & Schories, sp. nov. (Plate 3 B; Fig. 6 F, H; 7 D; Table 8) Material examined . Taltal, Punta Morada, lat. - 25.36667, long. -70.45000, 20.iv.2012, 15 m, sample 13: up to 4 cm high, female colony on worm tube (paratype: MHNG-INVE- 86234). Taltal, lat. - 25.38333, long. - 70.46667, 21.iv.2012, 20 m, sample 07: up to 3.5 cm high, sterile colony on algae (paratype: MHNG-INVE- 86233); 23.iv.2012, 22 m, sample 17: up to 6 cm high, male colony on worm tube (holotype: MHNG-INVE- 86235). Description . Colonies arising from creeping, branching, anastomosing hydrorhiza. Stems erect, monosiphonic, slightly geniculate to almost straight (Pl. 3 B), perisarc rather thick, almost transparent; a varied number of basal annuli above origin from stolon, followed by a short, smooth part; remainder of cauli divided into internodes by oblique constrictions of the perisarc, slightly marked to indistinct, slanting in opposite directions. Each internode rather short, carrying a latero-distal hydrotheca; adaxial cusp of one hydrotheca almost reaching the base of following one. Side branches, when present, arising irregularly from below bases of stem hydrothecae, generally laterally (giving the colony a coplanar appearance) or, more rarely, slightly in front or rear side of the colony (Fig. 6 F). Base of branch delimited from stem by a rather distinct node; first internode generally longer than subsequent ones. Hydrothecae (Fig. 6 H) alternate, flask shaped, slightly curving outwards; adnate for 2 / 5 th their adaxial length; free adaxial wall smooth to wavy (in which case provided with 2–3 weak undulations); abcauline wall varied in shape, from slightly concave, to straight, to rarely convex; aperture perpendicular to long axis of hydrotheca, constricted below rim; four pointed triangular cusps separated by shallow embayments; operculum of four triangular plates. Gonothecae of both sexes given off from below the bases of stem hydrothecae; ovoid, walls undulated to occasionally rather smooth; male longer and slightly slender than female (compare Fig. 7 D 1 and 7 D 2); aperture mounted on short neck provided with 3–4 distal horns flanking the aperture; female containing up to 20 large oocytes. Remarks . The general appearance, the mode of branching, the shape of both hydro- and gonothecae recall the widely-spread S. polyzonias (Linnaeus, 1785). A comparison with specimens of the latter from Brittany, France (Fig. 6 G), showed −however − that S. pauciramosa is a smaller species, with less adnate hydrothecae [about 2 / 5 th, compared to 1 / 2 or less in S. polyzonias , this feature being also evident from the accounts of Ramil & Vervoort (1992) and Ramil et al . (1992)]. Etymology . The specific name results from the fusion of two Latin words, pauci (meaning few) and ramus (meaning branch), and illustrates the rather scarce branching pattern of the colonies. Distribution in Chile . Only known from around Taltal (present study). Sertularella pauciramosa sp. nov. S. polyzonias (Linnaeus, 1758) Reference Present study Present study Ramil et al . (1992) Internodes Material examined . Corral, Chaihuin/Huiro, lat. -39.95000, long. - 73.61667, 17.x.2011, 18 m, sample 01: fertile colony on sponge, stems up 3.5 cm high (MHNG-INVE- 86241); 22.iii.2012, 6 m, sample 13: fertile colony on sponge, stems up to 3.0 cm high (MHNG-INVE- 86242). Remarks . Besides its discovery in Chile by Hartlaub (1901 b), the second record from the country (Galea & Schories 2012 a) was based on sterile specimens. The present material, with gonothecae, is in agreement with earlier descriptions [Blanco (1967 a), as S. glacialis (Jäderholm, 1904); Blanco (1976), as S. modestus (Hartlaub, 1901); Blanco (1980)], and confirms our previous identification. Distribution in Chile . Calbuco (Hartlaub 1901), Punta de Choros (Galea & Schories 2012 a), and Corral (present record). World records . Argentina (see Galea & Schories 2012 a). : Published as part of Galea, Horia R., Schories, Dirk, Försterra, Günter & Häussermann, Verena, 2014, New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile, pp. 1-50 in Zootaxa 3852 (1) on pages 35-36, DOI: 10.11646/zootaxa.3852.1.1, http://zenodo.org/record/286956 : {"references": ["Hartlaub, C. (1901 b) Revision der Sertularella - Arten. Abhandlungen aus dem Gebiete der Naturwissenschaften, Hamburg, 16 (2) (1), 1 - 143.", "Galea, H. R. & Schories, D. (2012 a) Some hydrozoans (Cnidaria) from Central Chile and the Strait of Magellan. Zootaxa, 3296, 19 - 67.", "Blanco, O. M. (1967 a) Contribucion al conocimiento de los hidrozoarios Argentinos. Revista del Museo de La Plata, 9 (71), 243 - 297.", "Jaderholm, E. (1904) Mitteilungen ueber einige von der Schwedischen Antarctic-Expedition 1901 - 1903 eingesammelte Hydroiden. Archives de Zoologie Experimentale et Generale, 4 (3), 1 - 14.", "Blanco, O. M. (1976) Hidrozoos de la expedicion Walther Herwig. Revista del Museo de La Plata, 12 (113), 27 - 74.", "Blanco, O. M. (1980) Acerca de dos especies del genero Symplectoscyphus Stechow, 1924. Neotropica, 26 (76), 197 - 203."]} |
format |
Text |
author |
Galea, Horia R. Schories, Dirk Försterra, Günter Häussermann, Verena |
author_facet |
Galea, Horia R. Schories, Dirk Försterra, Günter Häussermann, Verena |
author_sort |
Galea, Horia R. |
title |
Sertularella pauciramosa Galea & Schories, sp. nov. |
title_short |
Sertularella pauciramosa Galea & Schories, sp. nov. |
title_full |
Sertularella pauciramosa Galea & Schories, sp. nov. |
title_fullStr |
Sertularella pauciramosa Galea & Schories, sp. nov. |
title_full_unstemmed |
Sertularella pauciramosa Galea & Schories, sp. nov. |
title_sort |
sertularella pauciramosa galea & schories, sp. nov. |
publisher |
Zenodo |
publishDate |
2014 |
url |
https://dx.doi.org/10.5281/zenodo.6143195 https://zenodo.org/record/6143195 |
long_lat |
ENVELOPE(-55.233,-55.233,-61.250,-61.250) ENVELOPE(-62.950,-62.950,-64.900,-64.900) |
geographic |
Antarctic Argentina Blanco Corral |
geographic_facet |
Antarctic Argentina Blanco Corral |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
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Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
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https://doi.org/10.5281/zenodo.6143195 https://doi.org/10.11646/zootaxa.3852.1.1 https://doi.org/10.5281/zenodo.6143194 |
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spelling |
ftdatacite:10.5281/zenodo.6143195 2023-05-15T13:32:29+02:00 Sertularella pauciramosa Galea & Schories, sp. nov. Galea, Horia R. Schories, Dirk Försterra, Günter Häussermann, Verena 2014 https://dx.doi.org/10.5281/zenodo.6143195 https://zenodo.org/record/6143195 unknown Zenodo http://zenodo.org/record/286956 http://publication.plazi.org/id/FFE052544768FFD8FFC68437590FA657 http://table.plazi.org/id/DF0FCBB2474BFFFBFF5184955C93A6EE http://zoobank.org/7DE3BCBA-E5F0-4F0D-B2FD-B5B59E4DAE51 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.3852.1.1 http://zenodo.org/record/286956 http://publication.plazi.org/id/FFE052544768FFD8FFC68437590FA657 http://table.plazi.org/id/DF0FCBB2474BFFFBFF5184955C93A6EE http://zoobank.org/7DE3BCBA-E5F0-4F0D-B2FD-B5B59E4DAE51 https://dx.doi.org/10.5281/zenodo.6143194 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 Cnidaria Hydrozoa Leptothecata Sertulariidae Sertularella Sertularella pauciramosa article-journal ScholarlyArticle Taxonomic treatment Text 2014 ftdatacite https://doi.org/10.5281/zenodo.6143195 https://doi.org/10.11646/zootaxa.3852.1.1 https://doi.org/10.5281/zenodo.6143194 2022-04-01T11:00:27Z Sertularella pauciramosa Galea & Schories, sp. nov. (Plate 3 B; Fig. 6 F, H; 7 D; Table 8) Material examined . Taltal, Punta Morada, lat. - 25.36667, long. -70.45000, 20.iv.2012, 15 m, sample 13: up to 4 cm high, female colony on worm tube (paratype: MHNG-INVE- 86234). Taltal, lat. - 25.38333, long. - 70.46667, 21.iv.2012, 20 m, sample 07: up to 3.5 cm high, sterile colony on algae (paratype: MHNG-INVE- 86233); 23.iv.2012, 22 m, sample 17: up to 6 cm high, male colony on worm tube (holotype: MHNG-INVE- 86235). Description . Colonies arising from creeping, branching, anastomosing hydrorhiza. Stems erect, monosiphonic, slightly geniculate to almost straight (Pl. 3 B), perisarc rather thick, almost transparent; a varied number of basal annuli above origin from stolon, followed by a short, smooth part; remainder of cauli divided into internodes by oblique constrictions of the perisarc, slightly marked to indistinct, slanting in opposite directions. Each internode rather short, carrying a latero-distal hydrotheca; adaxial cusp of one hydrotheca almost reaching the base of following one. Side branches, when present, arising irregularly from below bases of stem hydrothecae, generally laterally (giving the colony a coplanar appearance) or, more rarely, slightly in front or rear side of the colony (Fig. 6 F). Base of branch delimited from stem by a rather distinct node; first internode generally longer than subsequent ones. Hydrothecae (Fig. 6 H) alternate, flask shaped, slightly curving outwards; adnate for 2 / 5 th their adaxial length; free adaxial wall smooth to wavy (in which case provided with 2–3 weak undulations); abcauline wall varied in shape, from slightly concave, to straight, to rarely convex; aperture perpendicular to long axis of hydrotheca, constricted below rim; four pointed triangular cusps separated by shallow embayments; operculum of four triangular plates. Gonothecae of both sexes given off from below the bases of stem hydrothecae; ovoid, walls undulated to occasionally rather smooth; male longer and slightly slender than female (compare Fig. 7 D 1 and 7 D 2); aperture mounted on short neck provided with 3–4 distal horns flanking the aperture; female containing up to 20 large oocytes. Remarks . The general appearance, the mode of branching, the shape of both hydro- and gonothecae recall the widely-spread S. polyzonias (Linnaeus, 1785). A comparison with specimens of the latter from Brittany, France (Fig. 6 G), showed −however − that S. pauciramosa is a smaller species, with less adnate hydrothecae [about 2 / 5 th, compared to 1 / 2 or less in S. polyzonias , this feature being also evident from the accounts of Ramil & Vervoort (1992) and Ramil et al . (1992)]. Etymology . The specific name results from the fusion of two Latin words, pauci (meaning few) and ramus (meaning branch), and illustrates the rather scarce branching pattern of the colonies. Distribution in Chile . Only known from around Taltal (present study). Sertularella pauciramosa sp. nov. S. polyzonias (Linnaeus, 1758) Reference Present study Present study Ramil et al . (1992) Internodes Material examined . Corral, Chaihuin/Huiro, lat. -39.95000, long. - 73.61667, 17.x.2011, 18 m, sample 01: fertile colony on sponge, stems up 3.5 cm high (MHNG-INVE- 86241); 22.iii.2012, 6 m, sample 13: fertile colony on sponge, stems up to 3.0 cm high (MHNG-INVE- 86242). Remarks . Besides its discovery in Chile by Hartlaub (1901 b), the second record from the country (Galea & Schories 2012 a) was based on sterile specimens. The present material, with gonothecae, is in agreement with earlier descriptions [Blanco (1967 a), as S. glacialis (Jäderholm, 1904); Blanco (1976), as S. modestus (Hartlaub, 1901); Blanco (1980)], and confirms our previous identification. Distribution in Chile . Calbuco (Hartlaub 1901), Punta de Choros (Galea & Schories 2012 a), and Corral (present record). World records . Argentina (see Galea & Schories 2012 a). : Published as part of Galea, Horia R., Schories, Dirk, Försterra, Günter & Häussermann, Verena, 2014, New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile, pp. 1-50 in Zootaxa 3852 (1) on pages 35-36, DOI: 10.11646/zootaxa.3852.1.1, http://zenodo.org/record/286956 : {"references": ["Hartlaub, C. (1901 b) Revision der Sertularella - Arten. Abhandlungen aus dem Gebiete der Naturwissenschaften, Hamburg, 16 (2) (1), 1 - 143.", "Galea, H. R. & Schories, D. (2012 a) Some hydrozoans (Cnidaria) from Central Chile and the Strait of Magellan. Zootaxa, 3296, 19 - 67.", "Blanco, O. M. (1967 a) Contribucion al conocimiento de los hidrozoarios Argentinos. Revista del Museo de La Plata, 9 (71), 243 - 297.", "Jaderholm, E. (1904) Mitteilungen ueber einige von der Schwedischen Antarctic-Expedition 1901 - 1903 eingesammelte Hydroiden. Archives de Zoologie Experimentale et Generale, 4 (3), 1 - 14.", "Blanco, O. M. (1976) Hidrozoos de la expedicion Walther Herwig. Revista del Museo de La Plata, 12 (113), 27 - 74.", "Blanco, O. M. (1980) Acerca de dos especies del genero Symplectoscyphus Stechow, 1924. Neotropica, 26 (76), 197 - 203."]} Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Argentina Blanco ENVELOPE(-55.233,-55.233,-61.250,-61.250) Corral ENVELOPE(-62.950,-62.950,-64.900,-64.900) |