Lupocyclus is a genus of crabs, containing six species:Lupocyclus inaequalis (Walker, 1887) Lupocyclus mauriciensis Ward, 1942 Lupocyclus philippinensis Semper, 1880 Lupocyclus quinquedentatus Rathbun, 1906 Lupocyclus rotundatus Adams & White, 1849 Lupocyclus tugelae Barnard, 1950