198 J. Wood-Mason— On- Telphusidce. [No. 2, 



than the rest of the animal, concave both transversely and longi- 

 tudinally ; its posterior margin sends backwards and downwards a 

 short triangular process, but it is not notched. 



The external maxillipedes and their exopodites are coarsely punc- 

 tate, and appear minutely granular under a lens. 



The chelipedes are greatly unequal in both males and fe- 

 males, the convex posterior surfaces of the meropodites are ex- 

 cavated into extremely shallow communicating fovese ; the posterior 

 angles are rugose and rounded off ; their ventral surfaces have 

 smoothly tuberculated margins. The carpopodites are minutely 

 foveate above, and punctate and armed on the inner margin, with 

 a short obtuse spine ; the succeeding joint is punctate, foveate and 

 granular, and its distal prolongation shows more distinctly these 

 characters, and in young specimens only is in contact with the whole 

 length of the dentated inner edge of the dactylopodite ; the teeth and 

 tips of the pincers have both the colour and transparency of amber. 



The ambulatory legs are punctate ; the dorsal edges of their 

 meropodites are scabrous, and nearly straight, the last joints are 

 extremely stout, and well armed with amber-like spines. 



The abdomen in general form resembles that of Telphusa Indica, 

 or of Paratelphusa spinigera. 



Breadth, . , 52 mm. 



Length, , 36 mm. 



In colour this species is of a rich dark brown above, below 

 lighter but brighter ; the inter- articular membranes are straw co- 

 loured, and the teeth of the pincers and the spines on the terminal 

 joints of the ambulatory legs are, as has been described, amber-like. 

 The epidermis is very delicate, rapidly cracking and peeling off 

 after death, and on exposure to the air ; when removed from the 

 spirits of wine. 



Hal. Pankabaree (about 2000 feet at the base of the Sikkim 

 hills) ; Teesta valley and Eastern Sikkim at 3 — 4000 ft. ; Thancote 

 hills, Nepal ; Cherra Punji in the Khasi hills. 



Plate XII. Fig. 5. Telphusa lugulris of the natural size. 

 6. External maxillipede. 7. Abdomen of the male. 



