TRICHOMONAS PULMONALIS 



355 



Trichomonas dysenterise]Billet/n907 . 



This Trichomonas Was first found by Billet in the faeces, and later 

 m 1912 by Gauducheau, who believes that it becomes an amoeba 

 in one stage of its life-history. The latter observer divides the 

 life-history of d^Loeschia into — -(i) Stage of parasitism in the tissues; 

 (2) stage of saprophytism in the lumen of the bowel or in cultures 

 when it lives on bacteria; (3) stage of free existence when it is a 

 flagellate. He considers that Loeschia undulans Castellani, 1904, 

 is allied to this species, although Castellani is inclined to believe 

 that it is a stage of an Oicomonas. 



Trichomonas pulmonalis Schmidt, 1895. 



This form has been found by Schmidt and St. Artault, Ley den 

 and Jaffe, in the sputum and lungs of persons suffering from phthisis, 

 gangrene, and putrid bronchitis. 



Other Species. — T. hatrachorum Perty, 1852, in the cloaca^ of 

 Rana temporaria, R. esculenta, Bufo vulgaris, and Hyla arhorea, in 

 Germany and Italy; T. suis Gruby and Delafond, in the alimentary 

 canal of pigs; T. limacis Dujardin, in the gut of Limax agrestis ; 

 T. lacertr^ Blochmann, in the cloaca of Lacerta agilis, T. cavice 

 Davaine, in. the large Jbowel of 

 guinea-pigs; but this last may 

 perhaps be separated off into a 

 separate genus, Trichomastix , 

 with one long flagellum directed 

 across the body. T. perronciti 

 Castellani, 1907, in monkeys 

 suffering from diarrhoea, is very 

 similar morphologically to T. 

 hominis. T. columbarum Pro- 

 Wazek and Aragao, 1909, is found 

 in the buccal mucosa of pigeons. 

 Plimmer has shown that flagel- 

 lates of the t5rpe of Trichomonas 

 can be found in the blood of 

 snakes. 



Tetratrichomonas Parisi, 1910. 



Definition. — • Trichomonadinae 

 with a cytostome, an undulating 

 membrane, and four anterior flagella. 



Type Species. — T. prowazeki Alexeieff, 1909, found in salamanders 

 and tritons. 



Remarks. — ^Alexeieff (1909) found a trichomonas-like parasite in 

 the terminal intestine of Salamandra maculosa, Triton cristatus. and 

 Alytes obstetricans, and subsequently in Hcemopis sanguisuga. This 

 parasite, measuring 10 to 14 by 4 to 7 microns, possessed four free 

 unequal anterior flagella and an undulating membrane thrown into 



Fig. 79. — Flagellate of Tricho- 

 monas Type found in the Blood 

 OF A Leopardine Snake. 



(After Plimmer.) 



