Monoplex trigonus, common name the trigonal hairy triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae. Distribution This species is found in the Atlantic Ocean (Cape Verde, West Africa, Gabon, Angola) and in the Caribbean Sea (Venezuela). Description The shell size varies between 21 mm and 60 mm. The maximum recorded shell length is 40 mm. Habitat Minimum recorded depth is 15 m. Maximum recorded depth is 15 m. References Further reading Bernard, P.A. (Ed.) (1984). Coquillages du Gabon [Shells of Gabon]. Pierre A. Bernard: Libreville, Gabon. 140, 75 plates External links Cymatiidae Gastropods described in 1791 Taxa named by Johann Friedrich Gmelin Molluscs of the Atlantic Ocean Molluscs of Angola Gastropods of Cape Verde Invertebrates of Gabon