218 



It is also pointed out that Acarus marginatus, F., must not be 

 referred to Ixodes columbae, Herm. {reflexus, auct.) but to the male of 

 Ixodes ricinus, L. 



Brumpt (E.) & Larrousse (F.), Transmission de la Piroplasm.ose 



canine franpaise par le Dermacentor venustus. — Bull. Soc. Path. 

 Exot., Paris, xv, no. 7, 12th July 1922, pp. 540-545, 1 fig. 



Canine piroplasmosis is of world-wide sporadic occurrence and is 

 transmitted in nature by the ticks, Haemaphysalis leachi, Rhipicephalus 

 sanguineus and Dermacentor reticulatus. Experiments have shown 

 that Piroplasma canis is transmitted from an infected tick to its 

 offspring. In the case of any of these vectors, piroplasmosis is trans- 

 mitted to the dog by an adult female tick that is the offspring of an 

 infected tick, even though the larval and nymphal stages may have 

 been reared on resistant hosts such as the guinea-pig or hedgehog. 

 A large percentage of ticks becomes infected, and there is a prospect 

 of the disease becoming far more extensive, provided that the natural 

 relations between susceptible hosts and the ticks serving as vectors 

 are close enough to ensure the preservation of the pathogenic organisms. 



DoNATiEN (A.) & Parrot (L.). Trypanosomiase naturelle du Chien 

 au Sahara. (Note pr61in)inaire.) — Bull. Soc. Path. Exot., Paris, 

 XV, no. 7, 12th July 1922, pp. 549-551. 



Natural trypanosomiasis of the dog was first recorded in the Sahara 

 in 1915, when an imported dog was found to be infected with a 

 trypanosome very similar to Trypanosoma berberum, the organism 

 causing debab in camels. As this disease is endemic in the region, 

 it was thought to be a case of spontaneous transmission of the trypano- 

 somiasis of camels to the dog. Later, however, an infection of 

 T. marocanum in a dog was recorded outside the Sahara [R.A.E., 

 B, viii, 80]. The authors now record a second case of natural trypano- 

 somiasis of the dog in Constantine Sahara. The trypanosome causing 

 the disease is described, and was found pathogenic to mice, rabbits 

 and guinea-pigs. The animal in question was in frequent contact 

 with camels in a region where the disease is often found, and at a 

 time when Stomoxys would probably be the vector [R.A.E., B, x, 108]. 



Franchini (G.). Particularites de Culture de certains Flagell^s. De la 

 Culture des Leishmania dans le Milieu de Yoshida. — Bull. Soc. 

 Path. Exot., Paris, xv, no. 7, 12th July 1922, pp. 551-555, 2 figs. 



This paper records further researches into methods of culture of 

 flagellates and the effects of various culture media on them [R.A.E., 

 B, ix, 150 ; X, 121] ; and demonstrates that kala-azar, Oriental sore, 

 Herpetomonas tarentolae and certain flagellates of the digestive tract 

 of insects can successfully be cultivated in Yoshida's medium. 



Pavlovsky (E. N.) & Stein (A. R.). Nouveau Cas de Creeping 

 Disease (Myiasis linearis) en Russie. — Bull. Soc. Path. Exot., 

 Paris, XV, no. 7, 12th July 1922, pp. 555-558. 



Many cases of creeping myiasis have been recorded, due to the 

 larva of Gastrophilus. The case here recorded in man was peculiar 

 in that the larva, instead of being found in the external layer of the 

 epidermis, had burrowed into the Malpighian layer. 



