1901. J Annual Report. 31 



" Materials for a Cavciuological Fauna of India, No. 6. The Brachyura 

 Catometopa, or Grapsoidea.^' The paper, like its predecessors, not only 

 contains descriptions of all the families, fjenera, and species of Indian 

 Gatometopa, but is also a systematic nionofrrapli of the genera of the entire 

 group. The Gatometopa ai^e here divided into nine families, all of which 

 are newly chaiaderized, and amonfj them the Falicidie, the systematic 

 position of which has long puzzled carcinologists, are included. 1,36 

 species are described, 31 of which are new to science : they fall into 55 

 genera, of which 8 ai-e new. The large number of new species is probably 

 explained by the fact that the paper covers the large collections of the 

 E.I ]\f. Survey Sliip "Investigator" — collections made for the most part 

 in depths that lie outside the reach of ordinary collectors. Bv the 

 publication of this paper the total number of species of Brachyurous 

 Crustacea recorded for the Indian region is raised to GOO, exolnsivn of 

 the freshwater Telplmsidx. 



The seventeenth paper by Captain L. llogers, M.D , I.M.S., is a 

 very important one, and is entitled " Th-. relationship of the water- 

 supply, water-logging, and the distribution of Anopheles Mosquitoa 

 respectively, to the prevalence of Malaiia north of Calcutta" Thia 

 paper is illustrated by a map, which unfortunately is not ready, but 

 will be issued with a subsequent number of the Journal. The conclu- 

 sions Dr. Rogers ai'rives at are that the quality of the water drunk by 

 the people has chiefly to do with the prevalence of malaria in tliem, and 

 that in India at any rate mosquitos by their bites or stings are not the 

 prime cause of malaria, though they may play a part by taking the 

 malarial parasite back from their human hosts to the water drunk by 

 the people, but that a good water-supply is an important prophylactic 

 measure in lessening the prevalence of malaria. 



Dr. P. C. Ray contributes the eighteenth paper, " Further Re- 

 searches on Mercurous Nitrite and its Derivatives," and " On Mercurous 

 Iodide and a new Method of its Preparation." A woodcut is given of 

 the apparatus used for the first of these experiments. 



The nineteenth and last paper is by Mr. J, S. Gamble and Major 

 D. Prain, and describes a new genus and species of plant of the Western 

 Himalayas of the order Orobanchacew, the genus being named Gleadovia 

 after the first finder of it, Mr. F. Gleadow. 



Journal, Part III. 



The number of papers read in the Anthropological Section durino* 

 the year was three, and they were on — " The Coorgs and Yeruvas, an 

 ethnological coutiast " by Mr. T. H. Holland, ' The Vslama Caste in 

 J3erar ' by Captain Wolseley Haig, and ' Ancient Stone implements in 



