BUFFALO SOCIETY OF NATURAL SCIENCES 13 
afford considerable information concerning the skeleton of the 
brain case and of the palate. Just behind the premaxille (Text 
fig. 4) Plate 10, fig. 2 there is a large palatal vacuity. The pre- 

Text fig. 4. Skull of Eusthenopteron foordi, Whiteaves. Palatal as- 
pect. B. O., Basioccipital; En. Pt., Entopterygoid; E. Pt., Ectopterygoid; 
Ex. Oc., Exoccipital; M. Pt., Metapterygoid; Mx., Maxilla; Op., Opis- 
thotic; Pal, Palatine; Par., Parasphenoid; P. M., Premaxilla; Po., 
Prootic; P. V. Prevomer; Qu., Quadrate. 
vomers are paired, triangular, rounded in front; and each bears a 
large tusk along side of which is a pit for its successor, although 
two of these tusks may be functional at the same time. Besides the 
tusks the prevomers are each armed with a single outer row of 
smaller teeth. Wedged between the two prevomers is a very deep 
