Aglaura hemistoma Péron & Lesueur, 1809

Distribution in South America: medusa—Pacific Ocean, Colombia to Chile, from 20°N to 55.84°S (Kramp 1966; Fagetti 1973 p. 41–42; Segura-Puertas 1984; Palma 1985; Cely & Chiquillo 1993; Palma 1994; Palma & Rosales 1995; Pagès et al. 2001; Palma & Apablaza 2004; Apablaza & Palma 2006; Baldrich 2007; Palma et al. 2007a p. 70, 73, 2007b p. 80; Villenas et al. 2009); Atlantic Ocean, Colombia to Uruguay, from 17°N to 35°S (Vannucci 1957, 1963; Alvariño 1968; Navas-Pereira 1974, 1981; Goy 1979; Ramírez & Zamponi 1981; Correia 1983; Giraldo & Villalobos 1983; Domínguez 2002; Migotto et al. 2002; Tronolone 2008; Nascimento 2010; Oliveira et al. 2010b, abstract; Silveira & Morandini 2011; Bonecker et al. 2014; Nagata et al. 2014a, 2014b; Gusmão et al. 2015; Nogueira Jr. et al., 2015b).

Habitat: medusa—eurythermic and euryhaline species, epi-mesopelagic, distributed in warm and temperate waters of all oceans, including Mediterranean Sea (Kramp 1957; Navas-Pereira 1974; Correia 1983; Segura- Puertas 1984; Bonecker et al. 2014). In southeastern Brazilian coast the species is associated with the tropical water mass of the Brazil Current (Oliveira et al. 2010b, abstract; Bonecker et al. 2014; Nagata et al. 2014a, 2014b; Nogueira Jr. et al. 2015b).