42 



p. a. Mclaughlin and p.f. clark 



The identity of specimens assigned toD. planimanus by Ajmal Khan 

 and Natarajan (1984: 16, fig. 13) is uncertain. 



Diogenes platoveti nom. nov. 



(Figs 5, 6, 8d, e, 9f, h, 12b) 



Diogenes sp. De Man, 1892:352. 

 Diog. intermedius De Man, 1892:354. 



Diogenes intermedius: Alcock, 1905:165 (list); Gordan, 1956:317 

 (list); Rahayu and Forest, 1995:385 (key), 387. 



Material examined. Holotype by monotypy. d" (SL = 4.81 mm), 

 Pare Pare, Celebes (Sudawesi, Indonesia), 1889, coll. M. Weber, 

 ZMA De.201.872; holotype of D. intermedius De Man, 1892. 

 Lanchester's material. 1 9 (SL = 4.67 mm), lcf(SL = 5.86 mm) 

 lodged in shell of Thais sp., (Malaysia), collection site unknown, 

 'Skeat' Expedition; UMZC Nov. 30, 1899. 



Diagnosis. Shield (Figs 5, 6) slightly longer than broad, roundly 

 triangular; dorsal surface weakly spinulose and rugose; anterior 

 margin very weakly denticulate between obsolete rostrum and pro- 

 duced lateral projections. Dorsal margin of branchiostegite nearly 

 smooth, with sparse row of setae. Ocular peduncles approximately 



Fig. 10 Left chela (outer face), a. Diogenes inglei sp. nov., holotype 

 ovigerous 9 SL = 1.46 mm, BMNH 1905.10.21.33; b. Diogenes 

 rectimanus Miers, 1884, holotypecfSL = 4.30 mm, BMNH 1882.7.Left 

 chela (outer face), a. Diogenes inglei sp. nov., holotype ovigerous 9 SL 

 = 1.46 mm, BMNH 1905.10.21.33; b. Diogenes rectimanus Miers. 

 1 884, holotype cf SL = 4.30 mm, BMNH 1882.7. 



Fig. 11 Left chela (outer face), a. Diogenes goniochirus Forest, 1956. 9 

 SL = 2. 15 mm, UMZC Nov. 30, 1 899; b. Diogenes avarus Heller, 

 1865,0"SL= 1 .53 mm, UMZC Nov. 30, 1899. 



0.90 length of shield, moderately slender. Ocular acicles with 3 or 4 

 spines mesially and marginal row of very tiny spinules. Intercalary 

 rostriform process approximately 0.3 longer than longest acicular 

 spines; with 3-5 prominent spines, 4 or 5 additional much smaller 

 blunt spinules on lateral margins, and blunt or acute terminal spine. 

 Antennular peduncles overreaching antennal peduncles by 0.60- 

 0.75 length of ultimate segment, and ocular peduncles by entire 

 ultimate segment. Antennal acicle strongly bifurcate, outer projec- 

 tion slightly overreaching distal margin of penultimate segment, 

 inner reaching slightly beyond proximal half; anterior margins of 

 both spinose. Antennal flagellum with irregular long and short setae, 

 at least in proximal half. 



Left cheliped (Fig. 12b) with upper margin of dactyl armed with 

 double row of closely-spaced small subacute spines, innermost 

 smallest, with intervening row of long setae; palm with double row 

 of larger subacute spines, proximal margin not distinctly delimited; 

 outer surfaces of dactyl, palm and fixed finger with scattered small 

 subacute or acute spines, largest forming faint arch medianly on 

 palm, lower margin of palm and fixed finger convex, with generally 

 double row of subacute spines; carpus with numerous small spines 

 on outer surface, strongest in lower half, upper margin with double 

 row of spines; inner faces of palm and carpus tuberculate. Right 

 cheliped with row of long stiff setae between and practically obscur- 





