PART I 



J 



Distomata Found in the Bile-ducts of Dogs. 



95 



injection of the villi. The material was, in some parts, yellowish-white ; but in general 

 was of various shades of pink and resembled strawberry-cream in appearance. 



On microscopic examination, it was found to be composed almost entirely of 

 cylindrical epithelium mixed with bacteria and amorphous particles. The large intestine 

 also contained pinkish mucus, but the membrane was not injected save along the 

 edges of the rugae. The stomach contained semi-digested food, and was slightly congested. 

 Towards its pyloric extremity there was a very hard fibroid tumour apparently of a 

 schirrous nature. The liver appeared healthy ; there were numerous distomata in the 

 bile ducts.* There were no traces of embolism throughout its substance. The gall- 



Qral sucker. 



(Esophagus. 



( Termination of genital tube with ova 



i escaping. 



Ventral sucker, protruded. 

 Alimentary canal, right side. 



Uterine tube filled with ova. 



Hairs, still adherent. 

 A''itellogene glands, right side. 



Right vitellogene du 

 Ovary. 



 ^^^.i^y"/ '  Righ testicle 



Termination of right alimentary tube. 



Pulsatile vesicle, near tennination of 



water-vascular system. 



* Fig. ?,, DiSTOMA FOUND IN THE BILE DUCTS OF DOGS. 



A. — The parasite figured natural size. 



B. — Ditto magnified 15 diameters. 



C. — Minute hairs covering the entire body when fresh and before being manipulated, magnified 300 

 diameters. 



D. — Ova squeezed out of the uterine tube, magnified 300 diameters. 

 This distoma is not infrequently met with in the bile ducts of dogs in this country. With the limited supply 

 of literature on this subject within our reach, we have, however, not been able to refer it to any described 

 species, and have therefore introduced a woodcut showing its size, form and minute anatomy, together with 

 those of the ova. It appears to us to be very closely allied to the species discovered by Dr. Cobbold in the liver of 

 the American red fox, and described and figured by him in his valuable work on Entozoa ; indeed if, on re-examina- 

 tion, it be found that that parasite has been, inadvertently, drawn by Dr. Cobbold as seen from the back — a 

 mistake into which we ourselves fell, when the first specimen was sketched— this may turn out to be identical 

 with the species described by this Author under the name of Distoma Conjunct iim. We strongly suspect this 

 to be the case. 



