2l8 THE MANAGEMENT AND DISEASES OF THE DOG. 



worm reproduces viviparously, and that the young are carried 

 along in the circulation.* 



" Estrongylus gigas (Fig. 25), or giant strongle, infests the 

 kidneys of various animals ; but it is rarely met with in the 

 dog. The males seldom exceed ten inches in length, but the 

 females have been known to exceed a yard in measurement 

 from head to tail, whilst their thickness equals that of the 

 little finger. The accompanying figure of a female specimen, 

 from Blanchard, is reduced to one-third of the natural size. 



Fig. 25. 

 The Giant Strongle. (Blanchard./ 



The remaining round worms of the dog are Spiroptera 

 sanguinoknta — the blood-red species — which usually occupies 

 small tumors in the mucous lining of the stomach. 



" The three-corner-headed strongle [Dochmius trigonoceph- 

 alus) infests the intestinal. canal. The wrinkled threadworm 

 (Trichosoma plica) gains access to the bladder. The whip- 



* In the " Veterinary Journal " for February, 1878, extracted from the 

 " Customs Gazette," there is an exhaustive and most interesting paper 

 " On Chinese Haematozoa,*' by Patrick IVIansoii, M. D. 



