162 

 94. Ncplivopsls ensirostris, n. sp. Plate I. fig. 2. 



The following characters distinguish this species from X. Stewarti, which it 

 otherwise closely resembles : — 



The carapace and chelipetls are granular, but there are no discrete tubercles 

 beneath the fur that covers the body. 



The rostrum, the length of which is half or more that of the rest of the 

 carapace measured in the middle line, is fluted like a bayonet dorsally and is 

 quite unarmed laterally. 



On the carapace at the base of the rostrum are 4 spines in a transverse row, 

 namely, a large one on either side, similar to the post-antennal spine, and a pair 

 of little ones between them : behind this, on the gastric region, is a second 

 transverse row of 4 small spines, and between and behind the middle pair of 

 these is a compressed tiiberele. [The middle pair of small spines in both of 

 these transverse rows stand upon a pair of ridges that diverge from the base of 

 the rostrum and again converge towards the conspicuous cervical groove]. 



On the cardiac region, in the middle line, overhanging the cervical groove, 

 is a pair of small spines, the termini of a pair of faint median longitudinal ridges 

 that start from a small tubercle near the posterior border of the carapace. 



The abdominal terga up to the 5th are broadly and faintly grooved trans- 

 versely ; and up to the 6th are discontinuously and very faintly carinated in the 

 middle line, though this is extremely inconspicuous in the case of the first 2 or 

 3 terga. 



The abdominal pleura from the 2nd to the 5th end in long acicular spines 

 as in N. atlantica: the edges of the pleura are microscopically crenulate, but 

 there is no spine on any of them. 



The transverse suture of the exopodite of the caudal swimmeret is very 

 fine. 



The large chelipeds of the adult male are only as long as the body behind 

 the cervical groove, and their hand is hardly as long as their ischium and merus 

 combined. 



The claw-like tooth of the coxa of the 3rd pair of thoracic legs is, as in 

 N. atlantica, particularly prominent. 



In an adult male the length of the rostrum is 9 millim., of the carapace 18 

 millim., of the abdomen 35 millim. 



Arabian Sea, north of the Laccadives 636 fathoms ; Bay of Bengal, off 

 Ceylon, 320-296 fathoms; Andaman Sea, 498 fathoms. 



In form and size this species is much like N. atlantica, from which, however, 

 it is easily distinguished by the absence of lateral spines from the rostrum, by 



