Clytia gigantea ( Hincks, 1866 )
publication ID |
https://doi.org/ 10.11646/zootaxa.3171.1.1 |
DOI |
https://doi.org/10.5281/zenodo.5248548 |
persistent identifier |
https://treatment.plazi.org/id/03C8247E-D02F-FFA2-FF62-FDB1FBCE2FF7 |
treatment provided by |
Felipe |
scientific name |
Clytia gigantea ( Hincks, 1866 ) |
status |
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Clytia gigantea ( Hincks, 1866) View in CoL
Figs. 46 View FIGURE 46 , 47
Campanularia gigantea Hincks, 1866: 297 View in CoL .— Jäderholm, 1909: 69, pl. 7, figs. 1–3.
FIGURE 47. Clytia gigantea View in CoL : gonotheca, ROMIZ B3917. Scale equals 0.5 mm.
Type locality. UK: Scotland, Lamlash Bay ( Hincks 1866: 297) .
Museum material. Kosterhavet, 58°53.093’N, 11°05.668’E, 20–30 m, 09.ix.2010, biological dredge, R / V GoogleMaps Nereus , on tube of polychaete, one colony, up to 2.2 cm high, with gonothecae, ROMIZ B3917 .
Remarks. This nominal species has sometimes been combined with Clytia hemisphaerica ( Linnaeus, 1767) . Cornelius (1982) considered them identical, and a number of recent authors, including me ( Calder, 1991; Cairns et al. 2002), adopted that opinion. After examining the material above, however, Clytia gigantea ( Hincks, 1866) is upheld as a valid species based on a combination of characters including its strikingly robust colony form, sparingly branched pedicels, and exceptionally large, elongate, gradually tapered hydrothecae. Moreover, hydrothecal cusps in C. gigantea are linguiform ( Fig. 46 View FIGURE 46 ) rather than wavy as in C. hemisphaerica . Specimens studied here were much like those reported earlier from Bohuslän by Jaderholm (1909: pl. 7, figs. 1–3). In reporting the species from the Oslofjord, Norway, Christiansen (1972) noted that some hydrothecae in his material reached 3 mm long. Ones exceeding 2 mm in length were observed on the hydroid colony reported herein from Kosterhavet.
Reports of Clytia gigantea from the Mediterranean, and from the Atlantic and Pacific coasts of North America (see below), need confirmation. The species, or a variant of it, has also been reported from Chile ( Leloup 1974; Galea et al. 2009).
Gonophores of this species, examined here (Fig. 47), are previously unknown in Europe. Those of the variant form from Chile have been described and illustrated by Leloup (1974) and Galea et al. (2009).
Reported distribution. West coast of Sweden.—Bohuslän ( Jäderholm 1909, as Campanularia gigantea ).
Elsewhere.—Boreal waters of the North Atlantic from Norway to Great Britain in Europe ( Hincks 1868; Christiansen 1972), and from Newfoundland to Cape Cod in North America ( Fraser 1944); questionable records exist from the Mediterranean (e.g., Pieper 1884; Babić 1904), the Queen Charlotte Islands in the northeast Pacific ( Fraser 1937, as Campanularia gigantea ), and Chile ( Leloup 1974; Galea et al. 2009).
R |
Departamento de Geologia, Universidad de Chile |
V |
Royal British Columbia Museum - Herbarium |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Clytia gigantea ( Hincks, 1866 )
Calder, Dale R. 2012 |
Campanularia gigantea
Jaderholm, E. 1909: 69 |
Hincks, T. 1866: 297 |