94 DISEASES OF THE DIGESTIVE APPARATUS 



female is 8 to 10 mm. long. The Dochmius duodenalis is the parasite 

 that observers have named as causing the disease known as Egyptian 

 chlorosis. This disease is indicated in man by general anaemia. The 

 eggs, which are oval, are jsassed in enormous numbers in the faeces of 

 affected persons, and lie on the leaves of acjuatic plants or the moist 

 ground, and are taken up in the drinking water, food or eating of 

 grass by dogs, reach the intestines of the animal and the parasite soon 

 matures. One liranch of the Dochmius, seen in Austria, Italy and Japan, 

 Dochmius uncincoriasis, causes great disturbance, particularly in hunt- 

 ing dogs. 



Animals affected with this parasite become anaemic, weak and 

 thin, develop hemorrhagic enteritis and catarrhal pneumonia and have 

 a peculiar discharge from the nose, of a thin, bloody mucus (Megnin, 

 Ilaillet). Peregand found these cases generally had piroplasma with 



'a- 



Fig. 49. — a, Male; b, female (natural size); c, magnified head (Jaksch). 



the other symptoms. There are also oedematous swellings, ulcerations 

 or gangrenous swellings of the skin, with intense cachexia. 



Therapeutics. — The treatment consists in the administration of 

 tseniafuges, felix mas, kamala, cadeot combined with calomel. Megnin 

 uses calomel and arsenic, the latter in 0.005 to 0.01 doses. Besides this, 

 give easily digested and nutritious food, milk, and eggs. The faeces of 

 all affected animals should be burned and the stools and benches where 

 the dogs sleep should be cleaned. Drinking water to be from a spring, 

 or else filtered or boiled. 



The presence of this parasite is recognized in the same way as one 

 would locate the taenia, that is, by the presence of the parasite or eggs 

 in the faeces. They are easily recognized, the eggs being similar to the 

 ascarides. 



Besides the already mentioned parasites, we also find the Distoma 

 echinatum (Generali and Ratz) and the Distoma heterophytes, found by 

 Jaiiyen in Japan and by Loots in Egypt, in the intestines. The Tri- 



