On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)

Collections of Frenulata made by the RV Professor Logachev in the Gulf of Cadiz in 2006 contain two new species, one belonging to the genus Spirobrachia, and another that was assigned to a new genus. Spirobrachia tripeira n. sp. is the first record of the genus in the North Atlantic Ocean; it has a...

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Published in:Scientia Marina
Main Authors: Hilário, Ana, Cunha, Marina R.
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2008
Subjects:
Siboglinidae
Frenulata
Pogonophora
mud volcano
Gulf of Cadiz
volcán de fango
Golfo de Cádiz
Elevado
Larga
Arctic
North Atlantic
Online Access:https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/853
https://doi.org/10.3989/scimar.2008.72n2361
id ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/853
record_format openpolar
institution Open Polar
collection Scientia Marina (E-Journal)
op_collection_id ftjscientiamarin
language English
topic Siboglinidae
Frenulata
Pogonophora
mud volcano
Gulf of Cadiz
volcán de fango
Golfo de Cádiz
spellingShingle Siboglinidae
Frenulata
Pogonophora
mud volcano
Gulf of Cadiz
volcán de fango
Golfo de Cádiz
Hilário, Ana
Cunha, Marina R.
On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)
topic_facet Siboglinidae
Frenulata
Pogonophora
mud volcano
Gulf of Cadiz
volcán de fango
Golfo de Cádiz
description Collections of Frenulata made by the RV Professor Logachev in the Gulf of Cadiz in 2006 contain two new species, one belonging to the genus Spirobrachia, and another that was assigned to a new genus. Spirobrachia tripeira n. sp. is the first record of the genus in the North Atlantic Ocean; it has a very stiff, straight, orange tube; its tentacles have pinnules and are arranged in a spiral crown without a lophophore. Bobmarleya gadensis n. gen. et n. sp. is characterised by an unusually long tentacular crown composed of about 40 free tentacles. It shares many characteristics with the genus Oligobrachia but the large number and extreme length of the tentacles and a combination of other characters justify the designation of a new genus. The specimens of Lamellisabella denticulata Southward, 1978 collected during the M.S. Merian 03/01 cruise provide the first record of this species in the Gulf of Cadiz. Las colecciones de Frenulata realizadas por el RV Professor Logachev en el Golfo de Cádiz en 2006 contienen dos especies nuevas, una perteneciente al género Spirobrachia, y la otra asignada a un género nuevo. Spirobrachia tripeira sp. nov. constituye la primera cita del género para el Atlántico norte; tiene un tubo muy rígido, recto y naranja; los tentáculos tienen pínnulas y se disponen en forma de corona espiralada y sin lofóforo. Bobmarleya gadensis n. gen. et n. sp. se caracteriza por su corona tentacular inusualmente larga compuesta por aproximadamente 40 tentáculos libres. Comparte muchas características con el género Oligobrachia, pero el elevado número y la longitud extrema de sus tentáculos, junto con una especial combinación de caracteres, justifica la designación de un género nuevo. Los especimenes de Lamellisabella denticulata Southward, 1978 recolectados durante la campaña M.S. Merian 03/01 constituyen la primera mención de esta especie para el Golfo de Cádiz.
format Article in Journal/Newspaper
author Hilário, Ana
Cunha, Marina R.
author_facet Hilário, Ana
Cunha, Marina R.
author_sort Hilário, Ana
title On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)
title_short On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)
title_full On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)
title_fullStr On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)
title_full_unstemmed On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic)
title_sort on some frenulate species (annelida: polychaeta: siboglinidae) from mud volcanoes in the gulf of cadiz (ne atlantic)
publisher Consejo Superior de Investigaciones Científicas
publishDate 2008
url https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/853
https://doi.org/10.3989/scimar.2008.72n2361
long_lat ENVELOPE(-63.267,-63.267,-64.683,-64.683)
ENVELOPE(-60.767,-60.767,-62.467,-62.467)
geographic Elevado
Larga
geographic_facet Elevado
Larga
genre Arctic
North Atlantic
genre_facet Arctic
North Atlantic
op_source Scientia Marina; Vol. 72 No. 2 (2008); 361-371
Scientia Marina; Vol. 72 Núm. 2 (2008); 361-371
1886-8134
0214-8358
10.3989/scimar.2008.72n2
op_relation https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/853/894
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Bartolomaeus, T., G. Purschke and H. Hausen. – 2005. Polychaete phylogeny based on morphological data - a comparison of current attempts. Hydrobiologia, 535-536: 341-356. doi:10.1007/s10750-004-1847-5
Bayer, F.M. – 1962. Pogonophora in the Western Atlantic Ocean. Science, 137: 670. doi:10.1126/science.137.3531.670
Bubko, O.V. – 1965. A new representative of the Pogonophora - Choanophorus indicus gen. n., sp. n. Zool. Zh., 44: 1670-1677.
Caullery, M. – 1914. Sur les Siboglinidae, type nouveau d’invertébrés receuillis par l’expédition du Siboga. C.R. Acad. Sci., Serie III, 158: 2014-2017.
Caullery, M. – 1944. Siboglinum Caullery. Type noveau d’invertébrés d’afinités à préciser. Siboga Expedition, 25: 1-26.
Cunha, M.R., A. Hilário and I.G. Teixeira. – 2001. The faunal community associated to mud volcanoes in the Gulf of Cadiz. In: Geological Processes on Deep-Water European Margins, IOC Workshop Report, 175, p. 62.
Flügel, H.J. – 1990. A new species of Siboglinum (Pogonophora) from the North Atlantic and notes on Nereilinum muranicum Ivanov. Sarsia, 75: 233-241.
Flügel, H.J. and P. Callsen-Cencic. – 1993. A new species of the genus Siboglinum (Pogonophora) from the North Atlantic off Portugal. Sarsia, 78: 255-264.
Flügel, H.J. and I. Langhof. – 1983. A new hermaphroditic pogonophore from the Skagerrak. Sarsia, 68: 131-138.
Gardner, J.M. – 2001. Mud volcanoes revealed and sampled on the Western Moroccan continental margin. Geophys. Res. Lett., 28: 339-342. doi:10.1029/2000GL012141
Gutcher, M.A., J. Malod, J.P. Rehault, I. Contrucci, F.K.L. Mendes- Victor and W. Spakman. -2002. Evidence for active subduction beneath Gibraltar. Geology, 30: 1071-1074. doi:10.1130/0091-7613(2002)030<1071:EFASBG>2.0.CO;2
Halanych, K.M. – 2005. Molecular phylogeny of siboglinid annelids (a.k.a. pogonophorans): a review. Hydrobiologia, 535: 297-307. doi:10.1007/s10750-004-1437-6
Hensen, C., M. Nuzzo, E. Hornibrook, L.M. Pinheiro, B. Bock, V.H. Magalhães and W. Brückmann. – 2007. Sources of mud volcano fluids in the Gulf of Cadiz indications for hydrothermal imprint. Geochim. Cosmochim. Acta, 71: 1232-1248. doi:10.1016/j.gca.2006.11.022
Ivanov, A.V. – 1952. New Pogonophora from far Eastern Seas. Zoologicheski Zhurnal, 31: 372-391. Russian. English version: Syst. Zool. 3, 69-79.
Ivanov, A.V. – 1957. Neue Pogonophora aus dem nord-westlichen Teil des Stillen Ozeans. Zool. Jahrb. Abt. Syst. Ökol. Geogr. Tiere, 85: 431-500.
Ivanov, A.V. – 1960. Pogonophore. In: Fauna SSSR (Fauna of the USSR). Akademii Nauk SSSR.
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Ivanov, A.V. and A. Petrunkevitch. – 1955. On the assignment of the Class Pogonophora to a separate Phylum of Deuterostomia Brachiata A. Ivanov, phyl. nov. Syst. Zool., 4: 177-178. doi:10.2307/2411671
Kirkegaard, J. – 1956. Pogonophora. Galathealinurn bruuni n. gen. n. sp., a new representative of the class. Galatea 2 Report, 2: 79-83.
Maldonado, A., L. Somoza and L. Pallarés. – 1999. The Betic orogen and the Iberian-African boundary in the Gulf of Cadiz: geological evolution (central North Atlantic). Mar. Geol., 155: 9-43. doi:10.1016/S0025-3227(98)00139-X
McHugh, D. – 1997. Molecular evidence that echiurans and pogonophorans are derived annelids. Proc. Natl. Acad. Sci. U.S.A., 94: 8006-8009. doi:10.1073/pnas.94.15.8006
Nielsen, C. – 1965. Four new species of Pogonophora from the Atlantic ocean off southern Florida. Bull. Mar. Sci., 15: 964-986.
Niemann, H., J. Duarte, C. Hensen, E. Omoregie, V.H. Magalhães, M. Elvert, L. Pinheiro, A. Kopf and A. Boetius. – 2006. Microbial methane turnover at mud volcanoes of the Gulf of Cadiz. Geochim. Cosmochim. Acta, 70: 5336-5355. doi:10.1016/j.gca.2006.08.010
Peliz, A., J. Dubert, P. Marchesiello and A. Teles-Machado. – 2007. Surface circulation in the Gulf of Cadiz: Model and mean flow structure. J. Geophys. Res., 112, C11015. doi:10.1029/2007JC004159
Pinheiro, L.M., M.K. Ivanov, A. Sautkin, G. Akhmanov, V.H. Magalhães, A. Volkonskaya, J. H. Monteiro, L. Somoza, J. Gardner, N. Hamouni and M.R. Cunha. – 2003. Mud volcanism in the Gulf of Cadiz: results from the TTR-10 cruise. Mar. Geol., 195: 131-151. doi:10.1016/S0025-3227(02)00685-0
Rodrigues, C. and M.R. Cunha. – 2005. Common chemosynthetic species in the Gulf of Cadiz: updated spatial distribution. In: Geological Processes on Deep-Water European Margins, IOC Workshop Rep., 197, pp. 26-28. Rouse, G.W. 2001. - A cladistic analysis of Siboglinidae Caullery, 1914 (Polychaeta, Annelida): formerly the phyla Pogonophora and Vestimentifera. Zool. J. Linn. Soc., 132: 55-80.
Rouse, G.W. and K. Fauchald. – 1997. Cladistics and polychaetes. Zool. Scripta, 26(2): 139-204. doi:10.1111/j.1463-6409.1997.tb00412.x
Sartori, R., L. Torelli, N. Zitellini, D. Peis and E. Lodolo. – 1994. Eastern segment of the Azores-Gibraltar line (central-eastern Atlantic): an oceanic plate boundary with diffuse compressional deformation. Geology, 22: 555-558. doi:10.1130/0091-7613(1994)022<0555:ESOTAG>2.3.CO;2
Schulze, A. 2003. - Phylogeny of Vestimentifera (Siboglinidae, Annelida) inferred from morphology. Zool. Scripta, 32: 321-342. doi:10.1046/j.1463-6409.2003.00119.x
Smirnov, R.V. – 2000a. A new species of Spirobrachia (Pogono phora) from the Orkney Trench (Antarctica). Polar Biol., 23: 567-570. doi:10.1007/s003000000122
Smirnov, R.V. – 2000b. A redescription of Spirobrachia leospira Gureeva (Pogonophora), with the erection of a new genus and a revision of the Spirobrachidae. Ophelia, 53: 151-158.
Smirnov, R.V. – 2000c. Two new species of Pogonophora from the arctic mud volcano off northwestern Norway. Sarsia, 85: 141-150.
Smirnov, R.V. – 2005a. New species of the genus Polarsternium (Pogonophora) from the Scotia Sea and adjacent waters of the Antarctic. Russ. J. Mar. Biol., 31: 146-154. doi:10.1007/s11179-005-0059-9
Smirnov, R.V. – 2005b. Two new species of abyssal pogonophores from the Antarctic Ocean. Russ. J. Mar. Biol., 31: 252-255. doi:10.1007/s11179-005-0082-x
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op_rights Copyright (c) 2008 Consejo Superior de Investigaciones Científicas (CSIC)
https://creativecommons.org/licenses/by/4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.3989/scimar.2008.72n2361
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spelling ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/853 2023-05-15T14:28:28+02:00 On some frenulate species (Annelida: Polychaeta: Siboglinidae) from mud volcanoes in the Gulf of Cadiz (NE Atlantic) Sobre algunas especies de frenulados (Annelida: Polychaeta: Siboglinidae) de los volcanes de fango en el golfo de Cádiz (NE Atlántico) Hilário, Ana Cunha, Marina R. 2008-06-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/853 https://doi.org/10.3989/scimar.2008.72n2361 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/853/894 Baraza, J. and G. Ercilla. – 1996. Gas-charged sediments and large pockmark-like features on the Gulf of Cadiz slope (SW Spain). Mar. Pet. Geol., 13: 253-261. doi:10.1016/0264-8172(95)00058-5 Bartolomaeus, T., G. Purschke and H. Hausen. – 2005. Polychaete phylogeny based on morphological data - a comparison of current attempts. Hydrobiologia, 535-536: 341-356. doi:10.1007/s10750-004-1847-5 Bayer, F.M. – 1962. Pogonophora in the Western Atlantic Ocean. Science, 137: 670. doi:10.1126/science.137.3531.670 Bubko, O.V. – 1965. A new representative of the Pogonophora - Choanophorus indicus gen. n., sp. n. Zool. Zh., 44: 1670-1677. Caullery, M. – 1914. Sur les Siboglinidae, type nouveau d’invertébrés receuillis par l’expédition du Siboga. C.R. Acad. Sci., Serie III, 158: 2014-2017. Caullery, M. – 1944. Siboglinum Caullery. Type noveau d’invertébrés d’afinités à préciser. Siboga Expedition, 25: 1-26. Cunha, M.R., A. Hilário and I.G. Teixeira. – 2001. The faunal community associated to mud volcanoes in the Gulf of Cadiz. In: Geological Processes on Deep-Water European Margins, IOC Workshop Report, 175, p. 62. Flügel, H.J. – 1990. A new species of Siboglinum (Pogonophora) from the North Atlantic and notes on Nereilinum muranicum Ivanov. Sarsia, 75: 233-241. Flügel, H.J. and P. Callsen-Cencic. – 1993. A new species of the genus Siboglinum (Pogonophora) from the North Atlantic off Portugal. Sarsia, 78: 255-264. Flügel, H.J. and I. Langhof. – 1983. A new hermaphroditic pogonophore from the Skagerrak. Sarsia, 68: 131-138. Gardner, J.M. – 2001. Mud volcanoes revealed and sampled on the Western Moroccan continental margin. Geophys. Res. Lett., 28: 339-342. doi:10.1029/2000GL012141 Gutcher, M.A., J. Malod, J.P. Rehault, I. Contrucci, F.K.L. Mendes- Victor and W. Spakman. -2002. Evidence for active subduction beneath Gibraltar. Geology, 30: 1071-1074. doi:10.1130/0091-7613(2002)030<1071:EFASBG>2.0.CO;2 Halanych, K.M. – 2005. Molecular phylogeny of siboglinid annelids (a.k.a. pogonophorans): a review. Hydrobiologia, 535: 297-307. doi:10.1007/s10750-004-1437-6 Hensen, C., M. Nuzzo, E. Hornibrook, L.M. Pinheiro, B. Bock, V.H. Magalhães and W. Brückmann. – 2007. Sources of mud volcano fluids in the Gulf of Cadiz indications for hydrothermal imprint. Geochim. Cosmochim. Acta, 71: 1232-1248. doi:10.1016/j.gca.2006.11.022 Ivanov, A.V. – 1952. New Pogonophora from far Eastern Seas. Zoologicheski Zhurnal, 31: 372-391. Russian. English version: Syst. Zool. 3, 69-79. Ivanov, A.V. – 1957. Neue Pogonophora aus dem nord-westlichen Teil des Stillen Ozeans. Zool. Jahrb. Abt. Syst. Ökol. Geogr. Tiere, 85: 431-500. Ivanov, A.V. – 1960. Pogonophore. In: Fauna SSSR (Fauna of the USSR). Akademii Nauk SSSR. Ivanov, A.V. – 1963. Pogonophora. Academic Press. Ivanov, A.V. and A. Petrunkevitch. – 1955. On the assignment of the Class Pogonophora to a separate Phylum of Deuterostomia Brachiata A. Ivanov, phyl. nov. Syst. Zool., 4: 177-178. doi:10.2307/2411671 Kirkegaard, J. – 1956. Pogonophora. Galathealinurn bruuni n. gen. n. sp., a new representative of the class. Galatea 2 Report, 2: 79-83. Maldonado, A., L. Somoza and L. Pallarés. – 1999. The Betic orogen and the Iberian-African boundary in the Gulf of Cadiz: geological evolution (central North Atlantic). Mar. Geol., 155: 9-43. doi:10.1016/S0025-3227(98)00139-X McHugh, D. – 1997. Molecular evidence that echiurans and pogonophorans are derived annelids. Proc. Natl. Acad. Sci. U.S.A., 94: 8006-8009. doi:10.1073/pnas.94.15.8006 Nielsen, C. – 1965. Four new species of Pogonophora from the Atlantic ocean off southern Florida. Bull. Mar. Sci., 15: 964-986. Niemann, H., J. Duarte, C. Hensen, E. Omoregie, V.H. Magalhães, M. Elvert, L. Pinheiro, A. Kopf and A. Boetius. – 2006. Microbial methane turnover at mud volcanoes of the Gulf of Cadiz. Geochim. Cosmochim. Acta, 70: 5336-5355. doi:10.1016/j.gca.2006.08.010 Peliz, A., J. Dubert, P. Marchesiello and A. Teles-Machado. – 2007. Surface circulation in the Gulf of Cadiz: Model and mean flow structure. J. Geophys. Res., 112, C11015. doi:10.1029/2007JC004159 Pinheiro, L.M., M.K. Ivanov, A. Sautkin, G. Akhmanov, V.H. Magalhães, A. Volkonskaya, J. H. Monteiro, L. Somoza, J. Gardner, N. Hamouni and M.R. Cunha. – 2003. Mud volcanism in the Gulf of Cadiz: results from the TTR-10 cruise. Mar. Geol., 195: 131-151. doi:10.1016/S0025-3227(02)00685-0 Rodrigues, C. and M.R. Cunha. – 2005. Common chemosynthetic species in the Gulf of Cadiz: updated spatial distribution. In: Geological Processes on Deep-Water European Margins, IOC Workshop Rep., 197, pp. 26-28. Rouse, G.W. 2001. - A cladistic analysis of Siboglinidae Caullery, 1914 (Polychaeta, Annelida): formerly the phyla Pogonophora and Vestimentifera. Zool. J. Linn. Soc., 132: 55-80. Rouse, G.W. and K. Fauchald. – 1997. Cladistics and polychaetes. Zool. Scripta, 26(2): 139-204. doi:10.1111/j.1463-6409.1997.tb00412.x Sartori, R., L. Torelli, N. Zitellini, D. Peis and E. Lodolo. – 1994. Eastern segment of the Azores-Gibraltar line (central-eastern Atlantic): an oceanic plate boundary with diffuse compressional deformation. Geology, 22: 555-558. doi:10.1130/0091-7613(1994)022<0555:ESOTAG>2.3.CO;2 Schulze, A. 2003. - Phylogeny of Vestimentifera (Siboglinidae, Annelida) inferred from morphology. Zool. Scripta, 32: 321-342. doi:10.1046/j.1463-6409.2003.00119.x Smirnov, R.V. – 2000a. A new species of Spirobrachia (Pogono phora) from the Orkney Trench (Antarctica). Polar Biol., 23: 567-570. doi:10.1007/s003000000122 Smirnov, R.V. – 2000b. A redescription of Spirobrachia leospira Gureeva (Pogonophora), with the erection of a new genus and a revision of the Spirobrachidae. Ophelia, 53: 151-158. Smirnov, R.V. – 2000c. Two new species of Pogonophora from the arctic mud volcano off northwestern Norway. Sarsia, 85: 141-150. Smirnov, R.V. – 2005a. New species of the genus Polarsternium (Pogonophora) from the Scotia Sea and adjacent waters of the Antarctic. Russ. J. Mar. Biol., 31: 146-154. doi:10.1007/s11179-005-0059-9 Smirnov, R.V. – 2005b. Two new species of abyssal pogonophores from the Antarctic Ocean. Russ. J. Mar. Biol., 31: 252-255. doi:10.1007/s11179-005-0082-x Somoza, L., V.D. del Río, R. Léon, M. Ivanov, M.C. Fernández-Puga, J.M. Gardner, F.J. Hernández-Molina, L.M. Pinheiro, J. Rodero, A. Lobato, A. Maestro, J.T. Vázquez, T. Medialdea and L.M. Fernández-Salas. – 2003. Seabed morphology and hydrocarbon seepage in the Gulf of Cádiz mud volcano area: Acoustic imagery, multibeam and ultra-high resolution seismic data. Mar. Geol., 195: 153-176. doi:10.1016/S0025-3227(02)00686-2 Southward, E.C. – 1963. Pogonophora. Oceanogr. Mar. Biol. Ann. Rev., 1: 405-428. Southward, E.C. – 1968. On a genus of pogonophore from the western Atlantic ocean, with description of two new species. Bull. Mar. Sc., 18: 182-190. Southward, E.C. – 1971. Pogonophora of the northwest Atlantic: Nova Scotia to Florida. Smithson. Contrb. Zool., 88: 1-29. Southward, E.C. – 1972. On some Pogonophora from the Caribbean and the Gulf of Mexico. Bull. Mar. Sc., 22: 739-776. Southward, E.C. – 1978a. 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Copyright (c) 2008 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 72 No. 2 (2008); 361-371 Scientia Marina; Vol. 72 Núm. 2 (2008); 361-371 1886-8134 0214-8358 10.3989/scimar.2008.72n2 Siboglinidae Frenulata Pogonophora mud volcano Gulf of Cadiz volcán de fango Golfo de Cádiz info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2008 ftjscientiamarin https://doi.org/10.3989/scimar.2008.72n2361 https://doi.org/10.3989/scimar.2008.72n2 https://doi.org/10.1016/0264-8172(95)00058-5 https://doi.org/10.1007/s10750-004-1847-5 https://doi.org/10.1126/science.137.3531.670 https://doi.org/10.1029/2000 2022-03-20T16:30:49Z Collections of Frenulata made by the RV Professor Logachev in the Gulf of Cadiz in 2006 contain two new species, one belonging to the genus Spirobrachia, and another that was assigned to a new genus. Spirobrachia tripeira n. sp. is the first record of the genus in the North Atlantic Ocean; it has a very stiff, straight, orange tube; its tentacles have pinnules and are arranged in a spiral crown without a lophophore. Bobmarleya gadensis n. gen. et n. sp. is characterised by an unusually long tentacular crown composed of about 40 free tentacles. It shares many characteristics with the genus Oligobrachia but the large number and extreme length of the tentacles and a combination of other characters justify the designation of a new genus. The specimens of Lamellisabella denticulata Southward, 1978 collected during the M.S. Merian 03/01 cruise provide the first record of this species in the Gulf of Cadiz. Las colecciones de Frenulata realizadas por el RV Professor Logachev en el Golfo de Cádiz en 2006 contienen dos especies nuevas, una perteneciente al género Spirobrachia, y la otra asignada a un género nuevo. Spirobrachia tripeira sp. nov. constituye la primera cita del género para el Atlántico norte; tiene un tubo muy rígido, recto y naranja; los tentáculos tienen pínnulas y se disponen en forma de corona espiralada y sin lofóforo. Bobmarleya gadensis n. gen. et n. sp. se caracteriza por su corona tentacular inusualmente larga compuesta por aproximadamente 40 tentáculos libres. Comparte muchas características con el género Oligobrachia, pero el elevado número y la longitud extrema de sus tentáculos, junto con una especial combinación de caracteres, justifica la designación de un género nuevo. Los especimenes de Lamellisabella denticulata Southward, 1978 recolectados durante la campaña M.S. Merian 03/01 constituyen la primera mención de esta especie para el Golfo de Cádiz. Article in Journal/Newspaper Arctic North Atlantic Scientia Marina (E-Journal) Elevado ENVELOPE(-63.267,-63.267,-64.683,-64.683) Larga ENVELOPE(-60.767,-60.767,-62.467,-62.467) Scientia Marina 72 2

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