Published November 16, 2020 | Version v1
Taxonomic treatment Open

Halecium tenellum Hincks 1861

  • 1. Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar e Centro de Investigación Mariña (CIM-UVigo), Universidade de Vigo. Campus Lagoas-Marcosende. 36310 Vigo. Spain. & Instituto Español de Oceanografía, Centro Oceanográfico de Vigo. Subida Radio Faro 50. 36390 Vigo. Spain.
  • 2. Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar e Centro de Investigación Mariña (CIM-UVigo), Universidade de Vigo. Campus Lagoas-Marcosende. 36310 Vigo. Spain. & framil @ uvigo. es
  • 3. Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias do Mar e Centro de Investigación Mariña (CIM-UVigo), Universidade de Vigo. Campus Lagoas-Marcosende. 36310 Vigo. Spain. & ansinjose @ gmail. com

Description

Halecium tenellum Hincks, 1861

Halecium tenellum: Cornelius, 1975: 409–411, fig. 12; Ramil & Vervoort, 1992: 90–91, fig. 21f, g; Cornelius, 1995a: 296-297, fig. 69; Peña Cantero & García Carrascosa, 2002: 75–77, fig. 12c–e; Vervoort, 2006: 254.

Material examined. MAURIT-0911, stn MUDR01, 16º08´24”N, 16º57´12”W, 488 m, 5-XII-2009: one colony, attached to Lophelia pertusa, no gonothecae.

Biology. This species has been found growing frequently on other hydroids and on rocks, pebbles and as epibiont on algae and a wide range of invertebrates (Peña Cantero & García Carrascosa 2002). Fertile material has been found in January, April, May, June, October and December (Peña Cantero & García Carrascosa 2002; Medel & Vervoort 2000).

The colony studied by us was growing on L. pertusa.

Distribution. Halecium tenellum is a near cosmopolitan species (Cornelius 1975), with records in all oceans, including polar waters. Its distribution was reviewed in detail by Medel & Vervoort (2000), but some identifications from high latitudes in the North Atlantic are erroneous (Calder 1991; Schuchert 2005). In West Africa, it was collected from Morocco (Patriti 1970; Ramil & Vervoort 1992), Canary Islands (Vervoort 2006), Mauritania (Gil & Ramil 2017a), Cape Verde Islands (Medel & Vervoort 2000; Vervoort 2006), Guinea-Bissau (Vervoort 1959; Gili et al. 1989), Guinea (Vervoort 1959) and Ghana (Buchanan 1957; Vervoort 1959). Its bathymetric range extends from the intertidal zone to 1200 m (Peña Cantero & García Carrascosa 2002).

Our material was collected from a depth of 488 m.

Remarks. Although gonothecae were absent in our material, the delicate aspects of the colony, such as long, thin and straight internodes disposed in zigzag directions, well-developed primary hydranthophores and stark flared hydrothecal rim, allowed us identify it as H. tenellum.

Notes

Published as part of Gil, Marta, Ramil, Fran & Agís, José Ansín, 2020, Hydroids (Cnidaria, Hydrozoa) from Mauritanian Coral Mounds, pp. 412-466 in Zootaxa 4878 (3) on page 428, DOI: 10.11646/zootaxa.4878.3.2, http://zenodo.org/record/4425132

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Linked records

Additional details

Biodiversity

Collection code
MUDR
Event date
2009-12-05
Family
Haleciidae
Genus
Halecium
Kingdom
Animalia
Material sample ID
MUDR01
Order
Leptothecata
Phylum
Cnidaria
Scientific name authorship
Hincks
Species
tenellum
Taxon rank
species
Verbatim event date
2009-12-05
Taxonomic concept label
Halecium tenellum Hincks, 1861 sec. Gil, Ramil & Agís, 2020

References

  • Hincks, T. (1861) A catalogue of the zoophytes of south Devon and South Cornwall. Annals and Magazine of Natural History, Series 3, 8, 251 - 262. https: // doi. org / 10.1080 / 00222936108697413
  • Cornelius, P. F. S. (1975) A revision of the species of Lafoeidae and Haleciidae (Coelenterata: Hydroida) recorded from Britain and nearby seas. Bulletin of the British Museum (Natural History), Zoology, 28, 375 - 426.
  • Ramil, F. & Vervoort, W. (1992) Report on the Hydroida collected by the " BALGIM " expedition in and around the Strait of Gibraltar. Zoologische Verhandelingen, Leiden, 277, 1 - 262.
  • Cornelius, P. F. S. (1995 a) North-West European Thecate Hydroids and their Medusae. Part 1. Part 1. Introduction, Laodiceidae to Haleciidae. Synopses of the British Fauna, New Series, 50, 1 - 347.
  • Pena Cantero, A. L. & Garcia Carrascosa, A. M. (2002) The benthic hydroid fauna of the Chafarinas Islands (Alboran Sea, western Mediterranean). Zoologische Verhandelingen, Leiden, 337, 1 - 180.
  • Vervoort, W. (2006) Leptolida (Cnidaria: Hydrozoa) collected during the CANCAP and Mauritania-II expeditions of the National Hystory, Leiden, the Netherlands [Anthoathecata, various families of Leptothecata and addenda]. Zoologische Mededelingen, Leiden, 80, 181 - 318.
  • Medel, M. D. & Vervoort, W. (2000) Atlantic Haleciidae and Campanulariidae (Hydrozoa, Cnidaria) collected during the CAN- CAP and Mauritania-II expeditions of the National Museum of Natural History, Leiden, The Netherlands. Zoologische Verhandelingen, Leiden, 330, 1 - 66.
  • Calder, D. R. (1991) Shallow-water hydroids of Bermuda. The Thecatae, exclusive of Plumularioidea. Royal Ontario Museum, Life Sciences Contributions, 154, 1 - 140.
  • Schuchert, P. (2005) Taxonomic revision and systematic notes on some Halecium species (Cnidaria, Hydrozoa). Journal of Natural History, 39, 607 - 639. https: // doi. org / 10.1080 / 00222930400001319
  • Patriti, G. (1970) Catalogue des cnidaires et ctenaires des cotes Atlantiques marocaines. Travaux de l'Institut Scientifique Cherifien, Serie Zoologique, 35, 1 - 149.
  • Gil, M. & Ramil, F. (2017 a) Hydrozoans from Mauritanian Deep-Waters. In: Ramos, A., Ramil, F. & Sanz, J. L. (Eds.), Deep sea ecosystems off Mauritania: Researching marine biodiversity and habitats in West African Deep-waters. Springer, Dordrecht, pp. 419 - 444. https: // doi. org / 10.1007 / 978 - 94 - 024 - 1023 - 5 _ 11
  • Gili, J. M., Vervoort, W. & Pages, F. (1989) Hydroids from the West African coast: Guinea Bissau, Namibia and South Africa. Scientia Marina, 53 (1), 67 - 112.
  • Buchanan, J. B. (1957) The hydroid fauna of the Gold Coast. Revue de Zoologie et de Botanique Africaines, 56 (3 - 4), 349 - 372.