PLATE 25. 
Fic. A.—Palatine view of the Lenawee skull, showing the double pos- 
terior nares, a-a, and the thin, laterally compressed pterygoid blades. 
Line work represents restored portions of the zygomatic arch. 
Fic. B.—Palatine view of the Boicourt skull, with incisor removed. 
