Nausithoe atlantica Broch, 1914

Remarks: some authors (Bigelow 1928; Kramp 1961) consider this species as conspecific with Nausithoe rubra . Distribution in South America: medusa—Pacific Ocean, Chile, at 33ºS off Valparaíso (Fagetti 1973), at 33.6ºS 78.8ºW in adjacent waters off Juan Fernández archipelago (Fagetti 1973); Atlantic Ocean, Brazil, at 26.75°S 47.55°W and at 27.3°S 48.15°W off Santa Catarina state (Correia 1983).

Habitat: oceanic, mesopelagic and bathypelagic (Russell 1956, 1970).