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Memoirs of the Indian Museum. 



[Vor.. V, 



is slightly elevated in the median line and the dorsal margin is rather uneven in lateral 

 view; on either side of this elevation there is an obscure longitudinal ridge. The 

 pseudorostral lobes are not upturned. Close to the apex the inferior margin of each 

 is serrated and the lower margin of the carapace, behind the exceedingly shallow 

 antennal notch, is armed with a series of coarse teeth, some twenty-five in number. 



The third and fourth leg-bearing somites appear to be fused dorsally, as in Cai- 

 man's P. longipes. 



The abdominal somites are without lateral serrations. The sixth somite bears a 

 pair of small spinules distally, one on either side of the telson. 



«>. 



Ä 



Fig. 4. — Paradiastylis culicoides, sp. nov. ? . 



c. Third leg. 



a. First leg. 



b. Second leg 



d. Fourth leg. 



e. Fifth leg. 



The telson (text-fig. 3 g) is smaller than that of the allied species, being little 

 more than half the length of the last abdominal segment. The apex bears a pair of 

 small spinules flanked on either side by two setae. 



The form of the mandible is shown in text-fig. 3 d. 



The antennules (text-fig. 3 c) are apparently much as in P. longipes, the. third 

 segment of the peduncle being slender and about as long as the first two taken 

 together. The larger flagellum terminates in two annulated filaments. 



The third maxillipedes (text-fig. 3 e) are without exopods; the basis is excep- 

 tionally broad. 



