Crabs (Crustacea, Decapoda) from the Seas of East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 4. South China Sea Author Arzivian, Arteen Author Alrubaie, Ahmad Author Yang, Jessica Author Lin, Huiyu Author Zhang, Eva Author Leong, Rupert text Bulletin of the National Museum of Nature and Science. Series A, Zoology 2022 2022-11-22 48 4 147 191 http://dx.doi.org/10.1159/000539401 journal article 10.50826/bnmnszool.48.4_147 2434-091X 12760084 Eumedonus niger H. Milne Edwards, 1834 ( Fig. 11C ) Material examined. RV Hakuhō Maru KH-72-1 cruise, sta. 50, 1Ə (CB 7.5×CL 7.7 mm ), NSMT-Cr 30935. Remarks. The male examined after ecdysis is wholly semitransparent due to decalcification ( Fig. 11C ), agreeing well with the detailed description, photographs and figures by Chia and Ng (2000) who examined the type specimens and synonymized Gonatonotus crassimanus Haswell, 1880 and Eumedonus villosus Rathbun, 1918 with this species. The front may be somewhat variable individually in the depth and width of the median incision, with V-shaped notch in this specimen just like the holotype represented by Chia and Ng (2000 : fig. 1). Distribution. Known from Japan , the East China Sea, the Philippines , and eastern and western Australia, 40–138 m depth.