4o6 



TR YPA NOSOMID^ 



Trypanosomes of Insectivora. — T. talpcB Nabarro; T soricis 

 Hadwen. 



Trypanosomes of Edentata. — T. legeri Mesnil and Brimont, 1910. 

 Trypanosomes of Carnivora. — T. pestanai Bettencourt and Franga, 

 1905. 



Trypanosoma duttoni Thiroux, 1905. 



Button and Todd in 1903 saw a flagellate organism in the blood of mice 

 obtained in a house in McCarthy Island on the Gambia River, but they con- 

 sidered it to be of the type of a Herpetomonas ; but in 1905 Thiroux described 

 a definite tr5rpanosome in Mus musculus L. in Senegal which will only infect 

 mice of all kinds — e.g., M. minutus L. (the harvest-mouse) — and it is possible 

 that Dutton and Todd saw one stage of its development. 



A number of interesting researches have taken place with this trypano- 

 some. Pricolo found that it could pass through the placenta and multiply 

 in the foetus, in which he describes latent forms very like those already men- 

 tioned in T. lewisi — i.e., which resembled Leishmania — having only a rod- 

 shaped kineto nucleus and tropho nucleus. 



Trypanosomes were found in fleas caught on infected animals, but they 

 did not show any development. 



Trypanosoma musculi Kendall, 1906. 

 This parasite was found in 8 per cent, of the mice examined by Kendall 

 in Panama. It was non-pathogenic, and resembled T. duttoni. 



Trypanosoma microti Laveran and Pettit, 1909. 

 Found in Microtus arvalis Pallas. It is 25 to 30 ;Lt by i '5 /jl. 



Trypanosoma blanchardi Brumpt, 1905. 



In Myoxis glis, the common dormouse. Like T. lewisi, but not inoculable 

 into rats. 



Trypanosoma myoxi R. Blanchard, 1906. 



Found by Galli-Valerio in Muscardium {Myoxis) avellanarius L., but nothing 

 much is known about the parasite. 



Trypanosoma mvicanthidis Delanoe, 191 5, from species of Arvicanthus and 

 T. eburnense Delanoe, 191 5, from Musconcha are varieties of T. lewisi. 



Trypanosoma criceti Liihe, 1906. 

 Synonyms. — T. rahinowitschi Brumpt, 1906. 



This trypanosome, which is very like T. lewisi, but distinguished by not 

 being transferable to the rat, was found in the hamster {Cricetus cricetus L.) 

 by Koch in 1881 . A blood-sucking louse has not been found on the hamster, 

 but Ceratophyllus fasciatus Bosc is common. 



Trypanosoma cuniculi R. Blanchard, 1906. 

 This trypanosome was found by Jobjet and Nabois in 1891 in the rabbit 

 [Lepus cuniculus L.) , in which it causes emaciation and perhaps diarrhoea. It 

 is very similar to T. lewisi, but smaller. It will not infect white rats and guinea- 

 pigs, but it can be cultivated. It is suspected that H (smatopinus ventricosus 

 Denny and Pulex goniocephalus Taschenberg may perhaps have something 

 to do with its life-history. 



Trypanosoma bandicotti Lingard, 1904. 

 This trypanosome is probably not the same as T. lewisi, which it resembles 

 in being patho,genic to guinea-pigs. It is found in Nesokia bandicotti Bechst 

 in Bombay and the Deccan. 



