I9I5-J 



Fauna of the Chilka Lake : Crustacea Decapoda. 



305 



merus, the latter segment being six and a half times as long as wide. The carpus is 

 nearly one and a half times as long as the merus. Of the five segments of which it is 

 composed, the first is about twice as long as the second ; the fifth is nearly three 

 quarters the length of the second and is nearly as long as the third and fourth 

 combined, the two latter being sub-equal. The chela is a little longer than the 

 second carpal segment; the palm is less than one and a half times as long as broad 

 and is two- thirds the length of the fingers. 



The merus of the third peraeopods is unarmed and is a little more than five 

 times as long as broad. The propodus is slightly tapering, nine times as long as 

 broad at the base ; it bears long setae but no spines and is two and three quarter 



Fig. 33. — Al-pheus paludicola, sp. nov. 



a. Antennal scale. 



b. Small chela of male. 



c. Second peraeopod. 



d. Telson. 



times as long as the dactylus. The latter segment is spatulate as in A. crassimanus 

 and is externally ridged. The remaining two pairs of legs are similar in form. 



The telson (text-fig. 33^) reaches about as far as the uropods. The setose 

 apex is rounded, but is produced far beyond the lateral spines. The breadth at the 

 level of these spines is almost or quite two-thirds the basal breadth and is from one 

 half to two-fifths the total length. The usual two pairs of dorso-lateral spinules are 

 present, the proximal pair situated about in the middle of the telson. Both uropods 

 are very broad ; the exopod is nearly circular, little more than one and a quarter 

 times as long as broad. 



Large specimens of this species reach a length of about 22 mm. The eggs borne 

 by females are very large, about 1*4 mm. in diameter. 



