Dana, 1851
Carapace squarish or acutely square. Dorsal surface rough, covered with granules. Side walls of carapace and pterygostomial region generally finely reticulated with close-set rows of hairs and/or of small uniform granules, forming a characteristic pattern and with a texture as regular as that of a sieve. Antero-lateral margins with two epibranchial teeth, the second sometimes reduced. Front strongly deflexed. Orbits oval and of a good depth. Lower border of the orbit commonly running toward the angle of the buccal cavern. Antennules fold nearly transversely into rather narrow fossae. Antennal flagellum slender and rather short, standing in the orbital hiatus. Third maxillipeds separated by a wide rhomboidal gap; exopodite slender and partly or almost entirely concealed; merus with an oblique hairy ridge; palp articulating either at the summit or near the antero-external angle of the merus. Chelipeds usually subequal, massive. Male abdomen rarely covering or not the space between the last pair of legs. (Guinot 1998)
Genera treated:
genus Chasmagnathus de Haan, 1833
genus Chiromantes Gistel, 1848
genus Clistocoeloma A. Milne Edwards, 1873
genus Cyclograpsus H. Milne Edwards, 1837
genus Episesarma de Man, 1895
genus Helicana K. Sakai & Yatsuzuka, 1980
genus Helice de Haan, 1835
genus Labuanium Serène & Soh, 1970
genus Metaplax H. Milne Edwards, 1852
genus Metasesarma H. Milne Edwards, 1853
genus Nanosesarma Tweedie, 1950
genus Neosarmatium Serène & Soh, 1970
genus Parasesarma de Man, 1895
genus Perisesarma de Man, 1895
genus Pseudosesarma Serène & Soh, 1970
genus Sarmatium Dana, 1851
genus Sesarmops Serène & Soh, 1970
genus Stelgistra Ng & Liu, 1999