OUR DOMESTICATED ANIMALS. 



91 



their thickness equals that of the little finger. The 

 accompanying figure of a female specimen, from Blan chard, 

 is reduced to one-third of the natural size. Specimens of 

 this huge nematode worm are preserved in the Hunterian 

 Museum, and also in the Museum of the Royal Veterinary 

 College. 



Of the remaining round worms of the dog, I need do 

 little more than indicate their names and special habitats. 



Fig. 18. The Giant Strongle. 



Thus, the "blood-red species (Spiroptera sanguinolenta) 

 usually occupies small tumours in the mucous lining of 

 the stomach. The three-corner-headed strongle (Dochmius 

 trifj on ocepl talus) infests the intestinal canal. The wrinkled 

 threadworm (Trichosoma plica) gains access to the 

 bladder. The whip worm of the dog Trichocephalus 

 depressiusculus) inhabits the caecum. The spiral flesh 



