Aluterus monoceros (Linnaeus, 1758). Unicorn Filefish or Unicorn Leatherjacket.To 76 cm (29.9 in) TL (Robertson and Allen 2002). Circumglobal; Bahía Magdalena, southern Baja California (Personal communication: Los Angeles County Museum of Natural History Fish Collection, Los Angeles, California), western Gulf of California northward to at least as far as Santa Rosalia (John Snow, pers. comm. to M.L.), to Chile, Isla del Cocos, Isla Malpelo, and Islas Revillagigedo (Robertson and Allen 2002). Depth: 0–150 m (492 ft) (min.: Robertson and Allen 2002; max: Matsuura in Carpenter and De Angelis 2016).