262 



Memoirs of the Indian Museum. 



[Vol. V, 



The first legs (text-fig. 25c) reach almost as far forwards as the outer maxillipedes 

 and do not possess exopods. The merus bears externally a small procurved tooth a 

 little behind its distal end. The carpus is short and apparently does not bear spines. 

 The hand is very broad; the "thumb" of the subchela is extremely large and the 

 maximum breadth, "thumb" included, is considerablj' more than half the total 

 length. A peculiar feature of the thumb-tooth is that its apex is bifid, composed of 

 two closely adjacent spines (text-fig. 25c'). There are coarse serrated hairs at the 

 inner angle of the carpus and on the adjacent margin of the propodus. Finer hairs 

 occur on the cutting edge of the latter segment and on the margins of the merus. 



Fig. 2^. —Poniophilus hendersoni, sp. nov. 



a. Antennal scale. d. Second peraeopod, with apex of 



b. Antennule of male. fixed finger further enlarged. 



c. Fir.st peraeopod. f'. The ' thumb ' of the c. Second pleopod of male. 



sub-chela further enlarged. /. Outer and inner uropods. 



g. Telson. g'. Apex further enlarged. 



The second legs (text-fig. 2'^d) reach about to the end of the carpus of the first 

 pair and are clothed with fine hairs. The merus and ischium are broad and about 

 equal in length; the carpus is little more than half as long, but is as long as and 

 stouter than the cliela. The latter is weakly constructed; the fingers are nearly 

 twice the length of the palm and the inner edges meet throughout their length when 

 the claw is closed; each finger is noticeably constricted at the apex and does not 

 bear a distinct claw. 



The third legs are very slender and reach to the apex of the antennal scale. The 

 merus is one and a third times the length of the ischium and is a little shorter than 



