86 THE INTERNAL PARASITES OP 



CHAPTER IX. 



Parasites op the Dog continued — The Cruel Thread- 

 worm—Its OCCURRENCE IN CHINA, JAPAN, AND AME- 

 RICA — Specimens procured by Messrs. Swinhoe 

 and Dare — Observations by Mr. Welch— Dr. Lam- 

 prey's Statements — Variable Character op the 

 Symptoms — Death sometimes preceded by extreme 

 Suffering — Microscopic h^matozoa of G-rube and 

 Delafond — The Giant Strongle — Names, and Ha- 

 bitats OF SEVERAL OTHER NEMATODES LIABLE TO INFEST 



the Dog — Another Species of Canine H^matozoon — 

 Statements of Professor Leiserung. 



There are many other interesting forms of nematode 

 worms liable to infest the dog; but, with one or two 

 exceptions, they do not appear to occasion much incon- 

 venience to the bearer. Perhaps the most important are 

 those which gain access to the organs of circulation, 

 thereby sometimes producing great suffering, and not 

 unfrequently the death of the canine host. Thus, in The 

 Field for Feb. 24, 1872, we find Mr. J. Julius Dare 

 writing from Yokohama, and stating that a parasitic 

 disorder of this description is very prevalent and fatal in 

 China and Japan. I had myself long previously received 

 information to the same effect from Mr. Swinhoe, H.B.M. 

 Consul at Amoy, who also sent me a characteristic 

 example of the heart of a dog stuffed with worms, the 



