Periphylla periphylla (Péron & Lesueur, 1810)

Distribution in South America: medusa—Pacific Ocean, off Ecuador and Peru (Kramp 1968), Chile, from 30ºS to 43ºS (Fagetti 1973); Atlantic Ocean, Brazil, off Bahia, Espírito Santo and São Paulo states (Morandini 2003; Silveira & Morandini 2011), Uruguay to Argentina, from 36ºS to 55ºS (Mianzan & Cornelius 1999).

Habitat: oceanic, meso-bathypelagic (Larson 1986; Mianzan & Cornelius 1999).