Clytia hemisphaerica (Linnaeus, 1767)

Synonyms in the area: Clytia coronata —Stechow 1914, 1919 [polyp]; Campanularia raridentata —Jäderholm 1920 p. 3 [polyp]; Laomedea raridentata —Leloup 1935 [polyp]; Laomedea coronata —Leloup 1935 [polyp]; Clytia edwardsi —Fraser 1938a; Calder et al. 2003 [polyp]; Clytia johnstoni —Fraser 1938a [polyp]; Phialidium hemisphaericum —Moncaleano & Niño 1976; Navas-Pereira 1974, 1980, 1981; Ramírez & Zamponi 1981; Giraldo & Villalobos 1983 [medusa]; Campanularia raridentata —Genzano & Zamponi 1997 [polyp].

Remarks: the distribution range provided by Ramírez & Zamponi (1981) is not based on specific records and, therefore, we did not consider that information for this species.

Distribution in South America: polyp—Pacific Ocean, Colombia, at 2.99°N 78.199°W in Gorgona Island, Ecuador, from 0.2°S to 0.6°S between Isla Fernandina and Isla Isabela, Chile, Iquique and from 22.08°S to 53.37°S (Jäderholm 1920 p. 3; Fraser 1938a; Leloup 1974 p. 14–16; Calder et al. 2003); Atlantic Ocean, at Aruba, at Klein Bonaire, Bonaire, Argentina, at 39.50°S 61.50°W, at 46.65°S 66°W, at 46.72°S 66.20°W (Leloup 1935; Genzano & Zamponi 1997; Genzano 1995; Genzano et al. 2009a);

medusa—Atlantic Ocean, Colombia to Argentina, from 10.27°N to 10.42°N, 11°N to 17°N, from 29°S to 44°S (Navas-Pereira 1974, 1980, 1981; Moncaleano & Niño 1976; Giraldo & Villalobos 1983; Migotto et al. 2002; Failla-Siquier 2006; Silveira & Morandini 2011).

Habitat: polyp—from 3 to 300m depth, on algae, corals, decapods carapace, as well as epizoic on the hydroids Halecium delicatulum, Obelia dichotoma, Orthopyxis mollis, Plumularia setacea, Sertularella geniculata, S. polyzonias, Symplectoscyphus subdichotomus, stems of tubulariids (Leloup 1935; Fraser 1938a; Leloup 1974 p. 14–16; Genzano 1995; Calder et al. 2003);

medusa—eurythermic and euryhaline species (Navas-Pereira 1974).