Menaethius monoceros

Menaethius monoceros (Latreille, 1825) Menoethius subserratus — Stimpson 1857: 219; Stimpson 1907: 25. Menaethius monoceros — Gee 1926: 166 [list]; Shen 1940a: 218 [no new specimens]; Dudgeon 1982: tab. 1; Morton and Morton 1983: 47, fig. 4.5(4). Taxonomy: Sakai (1938), Griffin and Tranter (1986). Type: Syntypes probably in MNHN (Davie 2002). Type locality: Mauritius (as Île-de-France). Distribution: Western Indian Ocean to Central Pacific: East Africa, Red Sea, to South China Sea, Taiwan, Japan, and Hawaii and French Polynesia (Griffin and Tranter 1986; Davie 2002; Ng et al. 2001; Castro 2011). Habitat: Subtidal to intertidal; coasts of rocky, weedy, at low-tide marks (Dai and Yang 1991). Remarks: A number of names synonymous with M. monoceros (Latreille, 1825), including M. subserratus Adams & White, 1848, have been listed by Sakai (1976), Davie (2002) and De Grave et al. (2022).