Pegantha martagon Haeckel, 1879

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: medusa—Pacific Ocean, Colombia to Chile, from 1.5°N to 18.25°S, at 33ºS off Valparaíso, and at northwest and southwest of Galápagos Archipelago (Kramp 1959a, 1965, 1966; Fagetti 1973 p. 46; Segura-Puertas 1984; Cely & Chiquillo 1993); Atlantic Ocean, Brazil to Argentina, at 3.29°S 29.96°W, at 38.73°S 49.31°W, from 43°S to 55°S (Kramp 1957; Migotto et al. 2002).

Habitat: medusa—in shallow waters, occasionally from 100 to 300m depth (Kramp 1957; Segura-Puertas 1984).