Hainanpotamon is a genus of freshwater crabs, containing the following species: Hainanpotamon auriculatum Yeo & Naruse, 2008 Hainanpotamon daiae Yeo & Naruse, 2008 Hainanpotamon directum Yeo & Naruse, 2008 Hainanpotamon fuchengense Dai, 1995 Hainanpotamon glabrum (Dang, 1967) Hainanpotamon helense Dai, 1995 Hainanpotamon orientale (Parisi, 1916) Hainanpotamon rubrum (Dang & Tran, 1992) Hainanpotamon vietnamicum (Dang & Hô, 2002) The genus was originally described in 1975 by Dang as Orientalia but that name was a junior homonym of the mollusc genus Orientalia, established by Radoman in 1975. The first available name is therefore Hainanpotamon, independently established by Dai in 1975. References Potamoidea Freshwater crustaceans of Asia