DEPLUMING SCABIES. 



47 



the case. This was especially noticed in the cock 

 bird. 



It is well known that animals will destroy one 

 another's parasites, as anyone can verify who has 

 been to the Monkey House at the ' Zoo ' : this habit 

 is undoubtedly found in fowls in connection with 

 this depluming Sarcopt mite. 



Fowls do, nevertheless, pull out one another's 

 feathers from pure vice. 



Life-history of the Mite. 



The form on the Fowl is most abundant in sorino- 

 and in summer. The mite (fig. 15) is much smaller 



Fig. 15. 



E 



Sarcoptes Icevis var. gallinte. 

 I. Ovigerous feiuaie. II. Legs of male. 



than mutans, and the male has much longer bristles 

 on the legs, so also has the ovigerous female. 



