8o Records of the Indian Museum. [Vol. XIX, 1920.] 



The occurrence of the species in such widely separated locali- 

 ties as the Arctic Seas, India and Australia will doubtless help to 

 throw light on the causes that have led to the distribution of this 

 and other Amphipods. In this connection it should perhaps be 

 mentioned that in the Chilka I^ake Ampelisca pusilla occurs 

 along with Paracalliope fluviatilis (G. M. Thomson), a species 

 which is common in fresh and brackish waters in New Zealand 

 and has also been recorded under the name of Pherusa australis 

 Haswell from Botany Bay, east coast of Australia. Quite recently 

 I have received specimens also from the Philippine Islands. 



