Clytia gigantea
Creators
- 1. Vigo - Centro de Investigación Mariña, Facultade de Ciencias do Mar, Universidade de Vigo, Spain. & Instituto Español de Oceanografía, Centro Oceanográfico de Vigo, Spain.
- 2. Vigo - Centro de Investigación Mariña, Facultade de Ciencias do Mar, Universidade de Vigo, Spain.
Description
Clytia gigantea (Hincks, 1866)
Fig. 4A; Table 6
Campanularia gigantea Hincks, 1866: 297.
Clytia gigantea – Calder 2012: 46–47, figs 46–47. — Peña Cantero & Horton 2017: 13, fig. 5a–b. Clytia sp. – Ramil 1988: 254–256, pl. XVII.
Material examinedSOUTH ATLANTIC OCEAN • 5 colonies, up to 13 mm high (2 growing on a ghost fishing net, 1 on Stegolaria geniculata), no gonothecae; Valdivia Seamount, stn BT12; 24°49′01″–24°47′38″ S, 6°24′40″–6°25′26″ E; 887– 886 m depth; 7 Feb. 2015; SEAFO-2015 leg.; SEAFO-2015-40552, SEAFO-2015-40582, SEAFO-2015-40811, SEAFO-2015-40852, SEAFO-2015-40857, LZM-UV slide R. 579.
RemarksDespite the fact that this species is currently included in the synonymy of Clytia hemisphaerica (Linnaeus, 1767) (Schuchert 2020), we agree with Calder (2012) who considers C. gigantea as a valid species, due to the comparatively larger size of its hydrothecae, provided with linguiform cusps, an opinion that was also later shared by Peña Cantero & Horton (2017). Moreover, Ramil (1988), in his study of the hydroids of Galicia (NW Spain), described this species as Clytia sp., apart from C. hemisphaerica, based on the same features highlighted by Calder (2012). Therefore, considering that both morphological features and measurements of our colonies coincide with those given by Ramil (1988), Calder (2012) and Peña Cantero & Horton (2017), we identify this material as C. gigantea.
The material studied here also resembles C. joycei Calder, 2019 in the hydrothecal shape; however, C. joycei is a shallow-water species, growing on the seagrass Thalassia testudinum K.D. Koening, 1805 and develops minute, stolonal colonies with comparatively smaller hydrothecae. These features typically separate C. joycei from C. gigantea (Calder 2019).
DistributionThis species has been recorded from the boreal waters of the Northeast Atlantic (Calder 2012) to Galicia, NW Spain (Ramil 1988, as Clytia sp.) and also from Newfoundland to Cape Cod in the West Atlantic (Calder 2012). Its presence outside the Atlantic Ocean, including the Mediterranean Sea, is considered as doubtful by Calder (2012). The records from Chile (Leloup 1974; Galea et al. 2009) are based on misidentifications (Galea & Schories 2012). Its bathymetric distribution extends from 20 (Calder 2012) to 950 m (Peña Cantero & Horton 2017). Clytia gigantea is reported here for the first time from the South Atlantic, at Valdivia Seamount.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- R
- Event date
- 2015-02-07
- Family
- Campanulariidae
- Genus
- Clytia
- Kingdom
- Animalia
- Material sample ID
- SEAFO-2015-40552, SEAFO-2015-40582, SEAFO-2015-40811, SEAFO-2015-40852, SEAFO-2015-40857
- Order
- Leptothecata
- Phylum
- Cnidaria
- Scientific name authorship
- Hincks
- Species
- gigantea
- Taxon rank
- species
- Verbatim event date
- 2015-02-07
- Taxonomic concept label
- Clytia gigantea (Hincks, 1866) sec. Gil & Ramil, 2021
References
- Hincks T. 1866. On new British Hydroida. The Annals and Magazine of Natural History (3) 18: 296 - 299. https: // doi. org / 10.1080 / 00222936608679646
- 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
- Pena Cantero A. L. & Horton T. 2017. Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections. Zootaxa 4347 (1): 1 - 30. https: // doi. org / 10.11646 / zootaxa. 4347.1.1
- Ramil F. 1988. Hidrozoos de Galicia. PhD thesis, Universidade de Santiago de Compostela, Spain.
- Schuchert P. 2020. World Hydrozoa Database. Available from http: // www. marinespecies. org / hydrozoa / [accessed 14 Jan. 2021].
- Thompson d'Arcy W. 1879. On some new and rare hydroid zoophytes (Sertulariidae and Thuiariidae) from Australia and New Zealand. The Annals and Magazine of Natural History, Series 5 3 (14): 97 - 114. https: // doi. org / 10.1080 / 00222937908682487
- Nutting C. C. 1904. American hydroids, Part II. The Sertulariidae. Bulletin of the United States National Museum 4 (2): 1 - 325.
- Linnaeus C. 1758. Systema naturae per regna tria naturae, secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis. Editio decima, reformata. L. Salvius, Stockholm. https: // doi. org / 10.5962 / bhl. title. 542
- d' Orbigny A. D. 1846. Zoophytes. In: Bertrand P. (ed.) Voyage dans l'Amerique meridionale (Le Bresil, La Republique orientale de l'Uruguay, La Republique argentine, La Patagonie, La Republique du Chili, La Republique de Bolivia, La Republique du Perou), execute pendant les annees 1826, 1827, 1828, 1829, 1830, 1831, 1832 et 1833. Zoophytes: Tome V, 4 e Partie. Bertrand, Paris and Levrault, Strasbourg. https: // doi. org / 10.5962 / bhl. title. 100771
- Calder D. R. 2019. On a collection of hydroids (Cnidaria, Hydrozoa) from the southwest coast of Florida, USA. Zootaxa 4689 (1): 1 - 141. https: // doi. org / 10.11646 / zootaxa. 4689.1.1
- Leloup E. 1974. Hydropolypes calyptoblastiques du Chili. Report no. 48 of the Lund University Chile Expedition 1948 - 1949. Sarsia 55: 1 - 62. https: // doi. org / 10.1080 / 00364827.1974.10411252
- Galea H. R., Haussermann V. & Forsterra G. 2009. New additions to the hydroids (Cnidaria: Hydrozoa) from the fjords region of southern Chile. Zootaxa 2019 (1): 1 - 28. https: // doi. org / 10.11646 / zootaxa. 2019.1.1
- Galea H. R. & Schories D. 2012. Some hydrozoans (Cnidaria) from Central Chile and the Strait of Magellan. Zootaxa 3296 (1): 19 - 67. https: // doi. org / 10.11646 / zootaxa. 3296.1.2