PARASITES AFFECTING THE SKIN 15 
the withers and back. It is transmitted from horse to 
horse. It produces intense pruritus, and the animal 
rubs the parts, and may produce serious sores. The 
xe 
ey 
Fic, 4.—SYMBIOTES Egur (MALE), VENTRAL SURFACE. 
parasite lives on the surface, and is more easily dis- 
covered. 
Symbiotic Mange in the Horse. —- The Symbiotes equi 
