Hybocodon unicus (Browne, 1902)

Synonyms in the area: Amphicodon unicus Browne, 1902; Hydocodon unicus —Palma et al. 2011 [medusa]. Remarks: the polyp and medusa recorded from Bahía Blanca as Hybocodon unicus by Zamponi & Facal (1987) corresponds to Corymorpha januarii Steenstrup, 1854 (see above).

Distribution in South America: medusa—Pacific Ocean, Chile, from 41.50°S to 46.67°S (Palma et al. 2007a; Villenas et al. 2009); Atlantic Ocean, Argentina, at 38.97°S 61.88°W, at 38.98°S 62.10°W, at 45.87°S 65.80°W, and Malvinas (Falkland) Islands (Browne 1902; Browne & Kramp 1939; Zamponi 1983a; Genzano & Zamponi 1997).