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).