Monomia gradiator (Fabricius, 1798)

[Jn: Ibo-gazami]

— Takeda (1977, as Portunus (Monomia) haani Stimpson: W Chichi-jima I., 36–52 m; Takinoura Bay, Ani-jima I., 45–47m); Komatsu (2011, as P. (Monomia) gradiator: E Ani-jima, 81–83.4m)