Nanomia bijuga (Delle Chiaje, 1841)
Synonyms in the area: Stephanomia bijuga —Palma 1986; Abreu & Nogueira 1989; Alvariño 1968, 1971, 1981.
Distribution in South America: Pacific Ocean, Colombia, from 5°N to 1°N (Cely & Chiquillo 1993), Chile, at 33°S off Valparaiso (Palma 1986); Atlantic Ocean, Brazil to Argentina, from 0º to 54ºS (Alvariño 1968, 1971, 1981; Abreu & Nogueira 1989; Pugh 1999; Migotto et al. 2002, Araujo 2006, 2012; Silveira & Morandini 2011; Nogueira Jr. 2012; Bonecker et al. 2014).
Habitat: neritic and oceanic species, widely distributed in the tropical, subtropical and temperate waters. Species mainly found in the warm waters (Alvariño 1971; Abreu & Nogueira 1989; Pugh & Gasca 2009; Araujo 2012; Bonecker et al. 2014).