224 "^^^^ Management and Diseases of the Dog. 



contains free embryonic filariae, and whettier such immature 

 worms, if found, correspond or not with the embryos found 

 in the oviducts of the full-grown worms. It is probable 

 that they do, for Dr. Krabbe, in his admirable resumS 

 already referred to, states that the 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 



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

 the Customs Gazette there is an exhaustive and most interesting: 

 paper " On Chinese Hsmatozoa," by Patrick Manson, M.D 



