Menaethius monoceros (Latreille, 1825) [

Jn: Ikkakugani]

— Takeda & Kurata (1976a: Eboshi-iwa Islet, Futami Bay, Chichi-jima I.; Hitomaru-jima I.); Takeda & Kurata (1977b: E Ani-jima I.; Minami-fukurozawa, Chichi-jima I.); Takeda (1977: Takinoura Bay, Ani-jima I., 47m); Komatsu (2011: Tsuri-hama and Futami Bay, Chichi-jima I.; E Nishi-jima I., 49.9–51.6m; Oki Harbor, Haha-jima I.); OIBO (2015, in table 2: Oki Harbor, Haha-jima I.); OIBO (2016, in table 1: Iguma Bay, Haha-jima I.); OIBO (2017b, in table 1: Seihyo Beach and Omura Beach, Chichi-jima I.)