DESCRIPTION OF PLATES. 
PLATE III. 
SARCOPTES MINOR, VAR. CATI. 
1.—Adult female, ventral surface x 250. 
2.—Male, ventral surface x 250. 
3.—Nymph or immature female, dorsal surface (it very closely resembles the 
adult female, except that in this latter the anus is nearer the centre 
of the back), x 250. 
4,.—Six-legged larva, dorsal surface x 325. (After Fiirstenberg. The anus 
has, however, been drawn on the dorsal instead of on the ventral 
surface). 
5.—Rostrum of S. minor, var. muris, x 600. (After Megnin). 
PLATE IV. 
PSoRERGATES SIMPLEX. 
1.—Male, dorsal surface. 
2.—Male, ventral surface. 
3.—Adult female, ventral surface. 
4.—Nymph, or immature female, ventral surface. 
5.—Larva, ventral surface. 
6.—Rostrum, showing palps, mandibles and tongue. 
7.—Egg. 
All the figures magnified 435 times. 
