I9I5.1 



FaiiJia of the Chilka Liike : Crustacea Dccapoda. 



277 



The fingers are provided witli inturned claws and with a few setae placed distally, 

 but are without teeth on the cutting margins. There are no spines on anj- of the 

 segments. 



The third peraeopods reach almost or quite to the end of the antennular peduncle; 

 those of the fifth pair are a little longer. In all the last three pairs the posterior 

 margins of the propodi bear tufts of longish setae and the dactylus is naked and 

 biunguiculate, bearing a slender spine near the apex (text-fig. 26/). In tho.se of the 

 fifth pair the ischium and carpus are of equal length ; the carpus is a little more than 

 half the length of the merus and a little less than half the length of the propodus ; 

 the latter segment is rather less than four times as long as the dactylus. 



The abdominal somites are smooth; the third is somewhat strongly arched in 

 lateral view and overhangs the succeeding somite. The sixth somite is about twice 

 the length of the fifth and is a little longer than the telson. 



Both uropods extend beyond the apex of the telson, the outer being the longer 

 and about three and a half times as long as broad (text-fig. 26//). The telson is nar- 

 row with two pairs of dorso-lateral spinules. The apex (text-fig. 26») is produced in 

 the middle to a bluntly rounded lobe and bears three pairs of spinules. The tips of 

 the inmost pair fall only a little short of those of the intermediate pair, the outer- 

 most being much the shortest. 



Large ovigerous females reach a length of nearly 16 mm. 



Urocaris indica is very closely allied to U . infraspinis, Rathbun', from California 

 and the Pacific coast of Mexico. It agrees with this species and differs from U . longi- 

 caudata, Stimpson , the type of the genus, in possessing an antennal spine and a 

 well defined ocellus at the base of the cornea. The characters separating Urocaris 

 infraspinis from the form found on the Indian coasts appear to be as follows : — 



' Rathbun, Proc. U.S. Nat. Mus., XXIV, p. 903 (1902) and Harriman .4 iaska Exped.,X, p. 21, 

 text-figs. loa, h (1910). 



* This species, examples of which I have examined, is recorded from the West Indies and the adja- 

 cent eastern coast of America. See Stimpson, Proc Acad. Nat. Set. Pliiladclpliia . XTI, p. 39 (i860) and 

 Rathbun, Bull. U.S. Fish Comm. for 1900, XX, ii, p. 126 (1902). 



