46 Mites InJ7Lrious to Domestic Animals. 



Besides the three kinds of mange described above, pruritus 

 and other trouble may be caused by Denwdex (see page 80). 



Genus Notoedriis, Railliet, 1893. 

 Very similar to SarcojJtes, but with the anus well on the dorsal 



Fig. 28. 



PteroUchus sp., from interior of quills of feathers of North American 

 fowl. Male from above, x 216. '(Original.) 



surface. This genus is not very distinct from Sarcojjtes, and should 

 perhaps be considered only a sub-genus. 



