226 



Records of the Indian Museum. 



[Vol.. XIII, 



less) the length of the carpus. The fingers are not markedly 

 spooned and are much shorter than in L. fluminicola. scarcely more 

 than two thirds the length of the palm. 



(v) The last three peraeopods are very long and slender. The 

 third pair reach beyond the antennal scale by more than the length 

 of the dactylus, the fifth by the dactylus and one half or two thirds 

 the length of the propodus. The dactylus in all three pairs is very 

 short. In the fifth pair the dactylus is considerably less than half 

 the length of the carpus ; the propodus is twice the length of the 

 carpus and about one-sixth longer than the merus, 



(vi) The spinules on the upper surface of the telson are rather 

 differently placed. In L. fluminicola the first pair is placed behind 

 the middle of the telson, and the second pair is little if at all nearer 



Ftg. 7. — Leaiider potaDiisciis, sp. no\' 



to the first than to the tip. In L. poiajiiiscus the first pair is 

 almost in the middle of the telson and the second is placed much 

 in advance of a point midwa}'' between the first pair and the tip. 



In all other respects L. potamiscus bears the closest resem- 

 blance to L. fluminicola. The antennules and antennal scale are 

 almost exactly similar. The first maxillipede is nearly the same 

 as in SoUaud's figure of L. mani, the distal lobe of the epipod being 

 more sharply pointed than in other species. The spines at the tip 

 of the telson are rather longer than in allied forms. 



Large specimens reach a total length of about 48 mm. The 

 eggs borne by ovigerous females are small, about 0*54 X 0*44 mm. 

 in longer and shorter diameter. 



Dr. Annandale notes that most of the specimens he collected, 

 were practically colourless when alive, though not transparent. 



