962 



Scabies. 



(h) Scabies of the Rabbit. 



1. Sarcoptic Scab. (Head mange.) This form of mange 

 occurs frequently and often as an enzootic like the dermatocop- 

 tic scab. It is caused by Sarcoptes minor (Notoedres cnnieuli). 

 The symptoms are similar to those of sarcoptic scab of the cat 

 (see page 958), and the skin of the head, lips, bridge of the 

 nose, forehead, the base of the ears and the vicinity of the eyes 

 is attacked particularly, the eyes appearing surrounded by 

 large, fatty, spectacle-shaped scabs (Gmeiner). Very frequent- 

 ly the process extends to the skin of the fore and perhaps also 

 of the hind paws. Itching is comparatively slight, but in young- 



Fig. 148. Ear manyG in the rabbit. 



animals emaciation is early noticeable. Left to themselves the 

 animals die without exception. The disease is not transmissible 

 to other animals (Gmeiner). 



According to Gmeiner, Sarcoptes squaniiferns also occurs in the rabbit (Sare. 

 pra^eox s. scabiei v. cimiculi), and, in contrast to Sarcoi)tes minor, over the Avhole 

 })ody. (ialli-Valerio noticed this form of seal), which apjjcars to bo prevalent in 

 Italy and France and to be niiudi more contagious and dangerous than the former. 



2. Dermatocoptic Scab. (Ear mange.) One observes the 

 clinical picture of an otitis externa, in the course of which in- 

 tense itching occurs ; thick, yellowish, l)ro\vn deposits, and dis- 

 charge from the ear make their appearance on the inner sur- 



