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FIFTEENTH REPORT. 
A SARCOPTID MITE IN THE CAT. 
BY HAROLD CUMMINS. 
The genus Xotoedres is composed of mites parasitic on cats and 
rabbits; it is one of the eight better-known genera in the family Sar- 
coptidae. The disease produced is known as scabies or mange. There 
are relatively few records as to the distribution of these forms, so it 
would seem advisable to report them when found. 
On the first of February of this year (1913) an adult male cat was 
brought to the Zoological laboratory for class work. It was found to 
be heavily infested with mites. These have been identified by Mr. 
Nathan Banks as Notoedres cati Hering. The top and sides of neck 
and shoulders and almost entire head were affected. The hair was 
sparse and contained flakes of loosened epidermis. The surface of the 
skin in these regions was rough and scaly. This condition extended even 
around the eyes; the cat could hardly open them fully, probably on 
account of their stiffened and encrusted lids. 
According to Banks (in letter) this species is “known in Europe, and 
several times recorded from America as affecting cats.” » 
Ann Arbor, 
