Tetragonurus cuvieri Risso, 1810 .

Smalleye Squaretail. To 70 cm (27.6 in) SL (Haedrich in Whitehead et al. 1986). Mediterranean Sea, Atlantic and Pacific Oceans (Haedrich in Carpenter and De Angelis 2016); western Pacific Ocean north to Japan to south of Aleutian Islands (Mecklenburg et al. 2002) to Chile (Pequeño 1989). Oceanic pelagic; depth: 0–1,800 m (5,904 ft) (Porteiro et al. 2017).