Leach, 1815
Usually entire body set with hairs. Dorsal surface of the carapace moderately convex, with the regions more or less defined. Antero-lateral margins with sharp spines behind exorbital angles. Postero-lateral margins distinctly concave. Front bilobed, exceptionally entire; pre-orbital tooth distinct. Chelipeds unequal, hairy; outer surface of palm often with several rows of spines; fingers pointed. Thoracic sternum rather narrow. Male abdomen narrow and slender. G1 slender and recurved. G2 short, sigmoid. (Guinot 1998)
Type species: Cancer hirtellus Linnaeus, 1767, by monotypy.
Gender masculine.
Species treated:
Pilumnus acanthosoma Ng, 2000
Pilumnus amamensis Takeda & Miyake, 1968
Pilumnus caerulescens A. Milne Edwards, 1873
Pilumnus dofleini Balss, 1933
Pilumnus elatus A. Milne Edwards, 1873
Pilumnus habei Takeda & Miyake, 1972
Pilumnus heterodon Sakai, 1934
Pilumnus ikedai Takeda & Miyake, 1968
Pilumnus interifrontus Shen, 1948
Pilumnus izuogasawarensis Takeda & Ng, 1997
Pilumnus longicornis Hilgendorf, 1879
Pilumnus minutus de Haan, 1833
Pilumnus murphyi Ng, 1988
Pilumnus ohshimai Takeda & Miyake, 1970b
Pilumnus orbitospinis Rathbun, 1911
Pilumnus purpureus A. Milne Edwards, 1873
Pilumnus ransoni Forest & Guinot, 1961
Pilumnus scabriusculus Adams & White, 1848
Pilumnus senahai Takeda & Miyake, 1968
Pilumnus spinulus Shen, 1932
Pilumnus takedai Ng, 1988
Pilumnus tomentosus Latreille, 1825
Pilumnus tuantaoensis Shen, 1948
Pilumnus vespertilio (Fabricius, 1793)