PLATE XIII 



Described 

 on Page 



H erf etairus arcuatus {^M.2irs\i). 72 



Fig. I. Right upper jaw with M^"'', crown view. X 9 diam. Type. Y.P.M. 

 No. 1 1822. 



Herfetairus or Melanodon sp. TJ 



Fig. 2. Left upper jaw with P* and M^"^, crown view. X about 6 diam. 

 {Tj^toi Dryolestes obtusus.') Y.P.M. No. 11819A. 



Melanodon oweni Simpson. 75 



Fig. 3. Right upper jaw with P* and M^"^, crown view. X 6 diam. Type. 

 Y.P.M. No. 10663. 



196 



