A. Milne Edwards, 1863
Carapace rather convex fore and aft; its dorsal surface more or less granulated and rather ill-defined. Front bilobed, each lobe being convex; lateral lobule distinctly isolated from supraorbital angle. Antero-lateral border usually with four teeth; those teeth stout and not spine-tipped; first tooth formed by external orbital angle itself and following fused ridge. Chelipeds heavy and quite unequal in both sexes. Male abdomen with seven distinct segments, and first male pleopods typically Pilumnus-type. (Takeda & Miyake, 1969)
Type species: Pilumnopeus crassimanus A. Milne Edwards, 1867, a subjective junior synonym of Ozius serratifrons Kinahan, 1858, by subsequent designation by Balss, 1933.
Gender masculine.
Species treated:
Pilumnopeus granulatus Balss, 1933
Pilumnopeus makianus (Rathbun, 1931)
Pilumnopeus marginatus (Stimpson, 1858)