. Bulletin of the Natural History Museum Zoology. 44 p. a. Mclaughlin and clark. Fig. 13 Left chela (outer face), a. Diogenes mixtus Lanchester. 1902, paralectotypecf SL = mm, UMZC ; b. Diogenes stenops Morgan and Forest, 1991, ovigerous 9 SL = mm, UMZC Nov. 30, 1899. (10° 54, 133° OLE), October 1962, WAM 403-65. Lanchester col- lection: 1 ovigerous 9 (SL = mm), Pulau Bidan, Penang; UMZC, Nov. 30, 1899. Diagnosis. Dorsal surface of shield (Fig. 7a) with tubercles and spines, often in short transverse ridges. Ocular peduncles long and slender, slightly overreached by


. Bulletin of the Natural History Museum Zoology. 44 p. a. Mclaughlin and clark. Fig. 13 Left chela (outer face), a. Diogenes mixtus Lanchester. 1902, paralectotypecf SL = mm, UMZC ; b. Diogenes stenops Morgan and Forest, 1991, ovigerous 9 SL = mm, UMZC Nov. 30, 1899. (10° 54, 133° OLE), October 1962, WAM 403-65. Lanchester col- lection: 1 ovigerous 9 (SL = mm), Pulau Bidan, Penang; UMZC, Nov. 30, 1899. Diagnosis. Dorsal surface of shield (Fig. 7a) with tubercles and spines, often in short transverse ridges. Ocular peduncles long and slender, slightly overreached by antennular peduncles. Ocular acicles with 3-5 spines on terminal margins. Intercalary rostriform process very small, not reaching half length of ocular acicles. Antennal peduncles slightly overreaching distal margins of corneae. Antennal acicles with terminal spine and 3 or 4 spines on mesial margin. Antennal flagella with long ventral setae. Left cheliped (Fig. 13b) with dense plumose setae obscuring armature, particularly on dactyl and palm; dactyl and palm with row of strong spines on upper margin; outer faces of fixed finger and palm with scattered tubercles or small spines, lower margins with spines or spinulose tubercles; carpus with row of 6 or 7 very strong spines on upper margin, distal margin with several spines, 1 or 2 very prominent spines on outer surface near distal midline. Right cheliped with row of small spines on upper margin of dac- tyl; upper margin of palm with strong distal spine and smaller spines or tubercles proximally, outer face with slight to prominent depression on outer face in upper half and scattered spinulose tubercles on outer surface of palm and fixed finger; carpus with strong spine at upper distal angle; outer face with strong spine on distal margin in upper half, outer surface and upper margin tuber- culate or spinulose. Ambulatory legs with scattered long setae on all segments; dactyls and propodi of second and right third un- armed; car


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