PLATE XI. 
PAGE 
Figs. la-3b. Priscodelphintjs ( ?) crassangulum Case 12 
la. Inner view of tympanic bone. % mile north oi: Governor Run. 
X i-i 
lb. Outer view of the same specimen. X % 
2. Posterior view of left occipital region. Same locality and col- 
lection. X % 
3a. Upper view of lower jaw. Same locality and collection. x % 
3b. Upper view of upper jaw and anterior part of the head of the 
same individual with the occiput removed. Same locality and 
collection. x % 
