60 Mites Injurious to Domestic Animals. 



nodules or cysts of varying size in the subcutaneous tissues. The 

 living mites can be found in the tissues and not in the cysts, which 

 apparently are formed round dead specimens. 



Mercier and Lebailly discovered numerous specimens of these 



46. 



Schongastia americana, Hirst (p. 78). A larval Trombidiid mite 



occurring on the domestic fowl in North America, x 236. 



(a) Scutum of same greatly enlarged, (b) A hair greatly enlarged. 



(Original.) 



two species of mites in a hen which had a cancerous tumour (myxo- 

 sarcoma) adhering to the wall of, the air-sac near the kidney, and 

 suggest that Cytoleichus nudus may, perhaps, inoculate the virus 

 of the disease in much the same way as has already been done 

 experimentally by means of the needle of a hypodermic syringe: 



