CONTENTS. 



Part I. Published 6th May, 1922. 



Page 



New and rare Odonata from the Nilgiri Hills ... ... 1 



Observations on the Invertebrate Fauna of the Kumaon Lakes. 



' III.— The Freshwater Mollusca ... ... ... 11 



A Review of the Indian Species of Amblycephalus ... ... 19 



A new Snake from the Northern Frontier of Assam ... 29 



Structural Modifications in the Fish of Mountain Torrents ... 31 



Notes on Fishes in the Indian Museum. III. — On Fishes 

 belonging to the family Cobitidae from high altitudes in 

 Central Asia ... ... ... ... 63 



A note on Bees of the genera Xylocopa and Bombus in the 



Indian Museum ... ... ... ... 85 



A Revision of the Burmese Unionidae ... ... ... 91 



Part II. Published 29th June, 1922. 



Notes on Crustacea Decapoda in the Indian Museum. XV. — 



Pontoniinae ... ... ... ... 113 



Part III. Published 31st August, 1922. 



The Fauna of an Island in the Cbilka Lake — 



Heteromera ... ... ... ... 289 



Free-living Thysanura ... ... ... ... 299 



Dragonflies ... ... ... ... 303 



Notes on Fishes in the Indian Museum. IV. — On Fishes belong- 

 ing to the genus Botia (Cobitidae) ... ... 313 



New records and species of Membracidae from India ... 323 



Five new species of the Rhynchotan genus Coriora ... 331 



On some Indian Derbidae (Homoptera) ... ... 335 



