Contents. 
Part V. Published 29th April, 1921. 
Note on the Leech Limnatis nilotica. (Tokio Kaburaki.) sty AB Tes 
Report on the Fresh-water Gastropod Molluscs of Lower Mesopo- 
tamia. Part III.—The Families Neritidae, eae and 
Melaniidae. (B. Prashad.) ay 713 
Notes on Larval Trematodes from Seistan. (S. Kemp.) ot « (me22G 
The Aquatic Fauna of Seistan: A Summary. (N. Annandale.).. 235 
