216 



ScHiKORA (F.). Beitrage zur Morphologie von Sarcoptes equi, Gerlach. 

 [Contributions to the Morphology of 5. equi.] — Zeitschr. Infckt.- 

 Krankh. d. Haustiere, xxiii, no. 1-2, 1922. (Abstract in Deutsche 

 Tierdrztl. Wochenschr., Hanover, xxx, no. 36, 9th September 1922, 

 p. 467.) 



In spite of the numerous pubHcations on the subject, there still 

 exists a doubt whether Sarcoptes [scabiei var.] hominis and S. [scabiei 

 var.] equi are specifically distinct or not. In this paper mites taken 

 from a horse and considered to be equi because they lack the morpho- 

 logical characters given by Gerlach for hominis are fully described 

 and figured, all details in the development being carefully dealt with. 

 The conclusion reached is that the specific relation between these 

 mites must remain unsettled until the developmental stages of hominis 

 have been subjected to a similar investigation. 



Sella (M.). Aspetti general! della Lotta antin).alarica. [The General 

 Aspects of Anti-malarial Work.] — // Policlinico, Sez. Prat., 

 13th & 20th March 1922. (Abstract in Ann. d' Igiene, Rome, 

 xxxii, no. 7, July 1922, pp. 574-579.) [Received 12th September 

 1922.] 



In this paper the various methods of anti-malarial work are com- 

 pared. In Italy quinine prophylaxis is the chief measure, and the 

 central government is the body almost exclusively responsible for 

 every action ; in the United States local commissions are entrusted 

 with much of the work, the chief feature of which is anti-larval 

 measures. While the value of the work hitherto accomplished in Italy 

 is recognised, the view is taken that the development of decentralisation 

 and of anti-mosquito measures is now required. 



Peryassu (A). Uma nova Especie de Culicineo Brasileiro. [A New 

 Brazilian Culicine.] — A Folha Medica, Rio de Janeiro, iii, no. 15, 

 1st August 1922, pp. 117-118. 



Taeniorhynchiis chrysonotum is described from specimens taken in 

 March and April. It is closely allied to T. albicosta, Chagas. This 

 mosquito is diurnal and crepuscular in habit and is a vicious blood- 

 sucker, biting both man and animals. 



Peryassu (A). Consideragoes Medico- Sanitarias e Biologicas do 

 Valle do Rio Doce. [Medico-sanitary and Biological Aspects of 

 the Rio Doce Valley. ]^ — A Folha Medica, Rio de Janeiro, iii, 

 nos. 13 & 14, 1st & 15th July 1922, pp. 145-148, 157-164. 



In this warm and damp valley in the south of Brazil mosquitos 

 abound, 35 species having been observed. Swarms of Aedes {Culex) 

 scapularis, Rond., Taeniorhynchus {Mansonia) fasciolatus, Lynch, 

 T. (M.) albicosta, Chagas, and T. (M.) chrysonotum, Peryassu, occur 

 in the forests, although pools and other waters are entirely lacking. 

 These mosquitos seem to breed on the damp ground, which is never 

 reached by sunshine. Malaria is rife in the valley and causes a very 

 heavy mortality, so that anti-malarial measures, at present non- 

 existent, are urgently needed. Anopheles (Cellia) tarsimaculalus, 

 Goeldi, A. (C.) argyritarsis, R.D., and A. (C.) albimanus, Wied., are 

 very numerous on the banks of the Rio Doce and its tributaries and 

 lakes, and are the species responsible for the transmission of the 

 disease. As 14 per cent, of the population arc gamete-carriers, repeated 



