Indian Deep'Sea Crustacea. 25 



55 niilliin. in length wlien fully exteiuled, and has chelipcds 

 1.'52 millim. and first legs 91 mllUm. long. 

 The eyes are large and rather j)ale. 



Uroptychus, Henderson. 



Uroptychus, sp. 



A large egg-laden female, the body of which when fully 

 extended measures 36'5 millim., can only be distinguished 

 from the Australasian U. australis, Henderson, by having the 

 under and inner surfaces of the arm and wrist studded with 

 vesiculous granules. It is probably a variety of U. australis. 



Uroptychus hacillimanus^ sp. n. 



Nearest to U. gracilimamis, Henderson, from which it 

 seems to differ only in having the carapace pitted and the 

 posterior border of the propodites of the legs unarmed, and to 

 the Atlantic U. ruhrovittatas, A. M.-Edw., from which it 

 differs in having slender chelipeds and also the posterior 

 border of the propodites of the legs unarmed. 



Carapace unarmed, except for a tiny spinule at either 

 antero-lateral angle and another at the outer angle of either 

 orbital notch ; its surface covered with a fine squamiform 

 pitting, its lateral borders with a regular squamiform crenu- 

 lation. 



Rostrum triangular, simple, acute, more than a third of its 

 length projecting beyond the eyes. 



Abdomen smooth ; the third to sixth pleurse rounded. 



Eyes small, their major diameter less than a fifth the 

 length of the rostrum, brown in colour. 



Antennal acicle acutely triangular, reaching about two 

 thirds the distance along the terminal joint of the antennal 

 peduncle. 



Chelipeds in both sexes about twice the length of the fully 

 extended body, very slender in the male, still more slender in 

 the female, perfectly smooth, but bearing (as do also the legs) 

 some curiously long and delicate silky hairs ; the hand is 

 longer and slightly broader than the wrist, the fingers are 

 considerably less than half the length of the palm. 



Legs slender, less than half the length of the chelipeds ; a 

 few spinules on the posterior border of the dactyli, but only a 

 single one (situated terminally) on the posterior border of the 

 propodites. 



A young male and female from off the Travancore coast, 

 430 fathoms, and an egg-laden female from off Ceylon, 



