the distence between them is always much less than 
tance from them to the upper lateral ridge of snout. “he 
hy 
skin of F. depressa is said to be nearly smooth while that 
of F. petimba is rough. While our material is represented 
by much smaller specimens these characters do not hold en- 
tirely. Wy eber Peat”, Nea poe a Kaan. phir Wal. 
nn ene 
51 Proc. U. S. Nat. M 26, 19035, . 
