Sphaeronectes koellikeri Huxley, 1859

Synonyms in the area: Sphaeronectes gracilis —Palma 1973, 1977, 1985, 1994; Palma & Rosales 1995, 1997; Palma et al. 1999, 2007b, 2011; Ulloa et al. 2000; Pagès et al. 2001; Palma & Aravena 2001; Palma & Apablaza 2004; Palma & Silva 2006; Apablaza & Palma 2006; Villenas et al. 2009; Pavez et al. 2010.

Remarks: Pugh (2009) explained why Sphaeronectes gracilis is a junior synonym of this species.

Distribution in South America: Pacific coast, Chile, from 20ºS to 55ºS, in the fjords and channels of southern Chile and in the Juan Fernández archipelago (Palma 1973, 1977, 1985, 1994; Palma & Rosales 1995, 1997; Palma et al. 1999, 2007b, 2011, 2014a; Ulloa et al. 2000; Pagès et al. 2001; Palma & Aravena 2001; Palma & Apablaza 2004; Palma & Silva 2006; Apablaza & Palma 2006; Villenas et al. 2009; Pavez et al. 2010); Atlantic coast, Brazil to Argentina, from 26ºS to 55ºS (Araujo 2012; Nogueira Jr. et al. 2014, 2015b).

Habitat: neritic and oceanic species, found in tropical, subtropical and temperate waters (Pagès & Gili 1992; Pagès et al. 1992; Pugh 1999; Pugh 2009; Pugh & Gasca 2009; Araujo 2012).