108 



to be erroneous, as T. infestans is unknown in Bahia ; T. genicyhfa, 

 distributed throughout the town, living in the holes of the armadillo 

 {Dasypus novemcinctus) ; T. maculata, rarely on the banks of the 

 S. Francisco river ; and a new species, T. tenuis, taken from a dwelling 

 in Bahia. Of these seven species, three harbour trypanosomes ; 

 T. ruhrofasciata harbours Trypanosoma boylei, which according to 

 Lafont is pathogenic to mice ; and T. megista and T. sordida are 

 carriers of the so-called " Chagas " disease. 



T. rubrofasciata has been associated by various writers with the 

 transmission of kala-azar ; in Keunion and Mauritius specimens were 

 found harbouring Trypanosoma boylei. Specimens taken in Bahia 

 showed no trypanosomes, but when examples w^ere fed, as larvae, 

 on the blood of guineapigs which were infected with T. cruzi, while 

 no trypanosomes were observable in the excrements of the larvae, 

 after metamorphosis large numbers were found in the adults. Further 

 experiments showed that T. megista, sordida, geniculata, infestans, 

 rubrofasciata and the related Rhodnius prolixus are very suitable 

 intermediate hosts for flagellates. 



The following Reduviidae occur in dwelling-houses in Brazil : 

 T. megista, from Guyana to S. Catharina ; T. rubrofasciata, from Para 

 to Santos ; T. brasiliensis at Piauhy, Ceara, Rio Grande do Norte, 

 Pernambuco and Bahia ; T. rubrovaria at Rio Grande do Sul ; T. tenuis, 

 sp. n., at Bahia ; T. vitticeps at Espirito Santo and Rio de Janeiro ; 

 and Rhodnius prolixus at Ceara. 



Ermolov (A. S.). floKJiaflHafl aanwcKa r. npeActflaiejiio Bbiconaiiiue 

 yiBepwfleHHaro CoBtunaHifl no S/iaroycipoMCTBy HepHOMopcKaro 

 noOepeHibfl. [Report by the Committee for the study of malaria 

 in Russia of the Society of Russian Surgeons in the memory of 

 N. I. Pirogov, on Investigations on Malaria in Caucasia in 1913,] 

 Moscouj, January 1914, 40 pp. 



The report starts with a short review of the spread of malaria in 

 Caucasia, where it has long been known and has frequently caused 

 the death of whole settlements, and refers to the work of previous 

 expeditions in Caucasia, organised by the Malaria Committee of the 

 Pirogov Society of Surgeons in 1903, 1904, 1905, 1911, and 1912. The 

 expedition of 1913, which had for its object the investigation of malaria 

 over the whole Black Sea coast of Caucasia from Sotchi to Turkey, 

 along the projected railway line there, is here dealt with. 



According to the reports of all expeditions, there is hardly any spot 

 along the coast where mosquitos and malaria are absent, except 

 Krasnaia Polinia, although no definite connection between the numbers 

 of mosquitos and the intensity of the disease could be established. 

 The most common species of Anopheles in North and South Russia 

 and along the coast is Anopheles claviger, except at Sotchi, where A. 

 bifurcatus was found almost exclusively in the summer of 1913. In 

 other parts of the country, the latter species is found less frequently 

 and very seldom in Batoum. A. superpictus and A. pseudopictus 

 were not found to the North of Batoum, though in some parts of this 

 town they represent twenty per cent, of all the mosquitos there. 

 A. sacharovii was found to the south of Batoum. The presence of 



