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Issue: Vol. 5264 No. 4: 17 Apr. 2023
Type: Article
Published: 2023-04-17
DOI: 10.11646/zootaxa.5264.4.2
Page range: 490-504
Abstract views: 209
PDF downloaded: 14

The genera Egmundella Stechow, 1921 and Cyclocanna Bigelow, 1918 (Cnidaria, Hydrozoa) in waters of Northwest Africa

Departamento de Ecoloxía e Bioloxía Animal; Facultade de Ciencias do Mar e Centro de Investigación Mariña (CIM–UVigo)
Universidade de Vigo; Universidade de Vigo. Campus Lagoas-Marcosende. 36310 Vigo. Spain.
Coelenterata hydroids taxonomy new species Morocco Western Sahara Mauritania Guinea Bissau

Abstract

In this paper, we study material belonging to the hydroid genera Egmundella Stechow, 1921 and Cyclocanna Bigelow, 1918 collected off the coast of Northwest Africa, from Morocco to Guinea Bissau, between 2004 and 2012, during several international surveys. Currently, the genus Egmundella is included in the family Campanulinidae Hincks, 1869, but its taxonomic status is doubtful, since most of the life cycles of its species are unknown. A total of four species have been identified: E. grimaldii Leloup, 1940, E. modesta Millard & Bouillon, 1975, E. superba Stechow, 1921 and E. ansini n. sp. Egmundella grimaldii is found for the first time since its original description, and fertile material is described herein. Its gonotheca is morphologically similar to that of C. producta (G.O. Sars, 1874), suggesting that both species could be congeneric. A description of specimens of C. producta collected along the NW African coast is also provided.

 

References

  1. Alder, J. (1856a) A notice of some new genera and species of British hydroid zoophytes. Annals and Magazine of Natural History, Series 2, 18 (107), 353–362. https://doi.org/10.1080/00222935608697652 DOI: https://doi.org/10.1080/00222935608697652
  2. Ansín Agís, J., Ramil, F. & Vervoort, W. (2001) Atlantic Leptolida (Hydrozoa, Cnidaria) of the families Aglaopheniidae, Halopterididae, Kirchenpaueriidae and Plumulariidae collected during the CANCAP and Mauritania-II expeditions of the National Museum of Natural History, Leiden, the Netherlands. Zoologische Verhandelingen, Leiden, 333, 1–268.
  3. Bigelow, H.B. (1918) Some medusae and siphonophorae from the western Atlantic. Bulletin of the Museum of Comparative Zoölogy, at Harvard College, 62 (8), 363–442.
  4. Bouillon, J., Gravili, C., Pagès, F., Gili, J.M. & Boero, F. (2006) An introduction to Hydrozoa. Mémoires du Muséum National d’Histoire Naturelle, 194, 1–591.
  5. Calder, D.R. (1991) Shallow-water hydroids of Bermuda. The Thecatae, exclusive of Plumularioidea. Royal Ontario Museum, Life Sciences Contributions, 154, 1–140.
  6. Calder, D.R. (2012) On a Collection of Hydroids (Cnidaria, Hydrozoa, Hydroidolina) from the West Coast of Sweden, with a Checklist of Species from the Region. Zootaxa, 3171 (1), 1–77. https://doi.org/10.11646/zootaxa.3171.1.1 DOI: https://doi.org/10.11646/zootaxa.3171.1.1
  7. Cornelius, P.F.S. (1992) Medusa loss in leptolid Hydrozoa (Cnidaria), hydroid rafting, and abbreviated life-cycles among their remote-island faunae: an interim review. Scientia Marina, 56 (2–3), 245–261.
  8. Cornelius, P.F.S. (1995) 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.
  9. Fraser, C.M. (1944) Hydroids of the Atlantic coast of North America. University of Toronto Press, Toronto, 451 pp.
  10. Galea, H.R., Schories, D. & Holtheuer, J. (2019) Three new records of hydroids (Cnidaria: Hydrozoa) from southern Chile. Revue suisse de Zoologie, 126 (2), 235–247. https://doi.org/10.5281/zenodo.3463457
  11. Gil, M. (2017) Hydroids (Cnidaria, Hydrozoa) from Northwest Africa. Undergraduate dissertation, Universidad de Vigo, Pontevedra, Ourense, Vigo, Galicia, 458 pp.
  12. Gil, M. & Ramil, F. (2017) 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 DOI: https://doi.org/10.1007/978-94-024-1023-5_11
  13. Hincks, T. (1869) A history of British hydroid zoophytes. John van Voorst, London, 338 pp. https://doi.org/10.5962/bhl.title.1322 DOI: https://doi.org/10.5962/bhl.title.1322
  14. Hirohito, Emperor of Showa (1995) The hydroids of Sagami Bay. Part II. Thecata. Biological Laboratory, Imperial Household, Tokyo, Japan, 355 pp.
  15. Lamouroux, J.V.F. (1821) Exposition méthodique des genres de l’ordre des polypiers, avec leur description et celle des principales espèces, figurées dans 84 planches, les 63 premières appartenant à l’histoire naturelle des zoophytes d’Ellis et Solander. Agasse, Paris, 1–115. https://doi.org/10.5962/bhl.title.11328 DOI: https://doi.org/10.5962/bhl.title.11328
  16. Leloup, E. (1940) Hydropolypes provenant des croisières du Prince Albert Ier de Monaco. Résultats des Campagnes scientifiques accomplies sur son yacht par le Prince Albert Ier de Monaco, 104, 1–38.
  17. Millard, N.A.H. (1977) Hydroida. The South African Museum’s Meiring Naude cruises. Part 3. Annals of the South African Museum, 73 (5), 105–131.
  18. Millard, N.A.H. & Bouillon, J. (1973) Hydroids from the Seychelles (Coelenterata). Annales du Muséum Royal de l´Afrique Centrale, Sciences Zoologiques, 206 (8), 1–106.
  19. Millard, N.A.H. & Bouillon, J. (1975) Additional Hydroids from the Seychelles. Annals of the South African Museum, 69 (1), 1–15.
  20. 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.
  21. Sars, G.O. (1874) Bidrag til Kundskaben om Norges Hydroider. Forhandlinger i Videnskabs-Selskabet i Kristiania, 1873, 91–150.
  22. Schuchert, P. (2001) Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om Grønland, Bioscience, 53, 1–185.
  23. Schuchert, P. (2016) On the Gonotheca of Egmundella producta (G.O. Sars, 1874) n. comb. (Cnidaria, Hydrozoa). Revue suisse de Zoologie, 123 (2), 219–225. https://doi.org/10.5281/zenodo.155157
  24. Schuchert, P., Hosia, A. & Leclère, L. (2017) Identification of the polyp stage of three leptomedusa species using DNA barcoding. Revue suisse de Zoologie, 124 (1), 167–182. https://doi.org/10.5281/zenodo.322675
  25. Stechow, E. (1921) Über Hydroiden der Deutschen Tiefsee-Expedition, nebst Bemerkungen über einige andre Formen. Zoologischer Anzeiger, 53 (9–10), 223–36.
  26. Stechow, E. (1923) Zur Kenntnis der Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete. II. Teil. Zoologische Jahrbücher, Abteilung für Systematik, Ökologie und Geographie der Tiere, 47, 29–270.
  27. Vervoort, W. (1966) Bathyal and abyssal hydroids. Galathea Report. Scientific Results of The Danish Deep-Sea Expedition, 1950-1952, 8, 97–173.
  28. Vervoort, W. (1985) Deep-sea Hydroids. In: Laubier, L. & Monniot, Cl. (Eds.), Peuplements profonds du Golfe de Gascogne. BIOGAS, Campagnes, pp. 267–297.
  29. Vervoort, W. (2006) Leptolida (Cnidaria: Hydrozoa) collected during the CANCAP and Mauritania-II expeditions of the National History, Leiden, the Netherlands [Anthoathecata, various families of Leptothecata and addenda]. Zoologische Mededelingen, Leiden, 80, 181–318.