THE MANGE OF THE DOG. 



61 



lost to apply the proper remedies, as the presence of such 

 itch-mites will affect the health of the invaded animals. 

 Early treatment of such cases is all important, and if the 

 parasites are detected soon after having found a home upon 

 the sheep, a thorough application of scab-dips or ointments 

 will destroy them. In cases of longer standing the scabs 

 have to be softened and loosened by some kind of grease or 

 oil before the dip is applied. 



A number of different dips will be given later under 

 sheep-scab. 



THE MANGE OF THE DOG. 



{Sarcojjtes scahiei var. cauJs). 



This disease is also caused by the presence of itch-mites, 

 •and can be cured in the same wav as in other animals. 



THE SMALL ITCH-MITE. 



{Sarcoj)tes minor Fuerst.). 



This itch-mite causes the mange of cats and rabbits, and 

 received the correspending names of /V. cunicull and X cati. 



Fig. 32. Scab- 

 mite of cat, male. 

 Greatly enlarged. 

 Original. 



Fig. 33. Scab-mite of 

 cat, female. Greatly- 

 enlarged. Original. 



'This parasite is considerably smaller, the male measuring 

 '0.18mm. in length and 0.14mm. in breadth, the female 0.25 

 and 0.20, and the eggs 0.10mm. The female has alargenum- 

 berof long and very' small scales upon the back, the male but 

 ,.afew. Thorns upon the thorax are not present, while t^velve 



