ii6 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 



PREHISTORIC FAUNA OF CALIFORNIA. 



Explanation of Plate 12. 



(From "Contributions to the Extinct Vertebrate Fauna of 

 the Western Territories." by Professor Joseph Leidy: loc. cit.) 



Figs. 1-3. Auchenia hesterna, Leidy. 



Specimens from the quaternary of California, and be- 

 longing to the cabinet of Wabash College, Cravrfords- 

 ville, Indiana: specimens discovered by Dr. Lorenzo 

 G. Yates. 



Fig. 1. Outer view of the series of lower molar teeth of the 

 left side, one-half the natural size. 



Fig. 2. Triturating surface of the same series, natural size. 



Fig. 3. A second upper molar of the left side, view of the 

 triturating surface. 



