1921] Frick: Faunas of Bautista Creek and San Timoteo Cafion 297 



prominent in the premolars of 0. hnniomis is often absent from the 

 molars of both 0. hemionus and 0. columhiana. So far a-s "observable 

 the cervid remains from the Pleistocene cave de- 

 posits of California also lack the double buttress 

 of the last molar. The enamel is considerably mor(^ 

 crinkled than that of the comparatively long- 

 crowned 0. he))iionus, and somewhat more crinkled 

 than in 0. columhiana. 



Comparative Measurements 



Odocoileus?, O. hemi- O. colum- 



sp. no. 23405 onus biana 



Mj, anteroposterior diameter 25.8 mm. 23.2 25.2 



M2, transverse diameter 10.3 10.3 8.2 



M5, height of erown 9.1 10.6 11 



M3, anteroposterior diameter 22.2 20 



Mj, transverse diameter 9.9 7.2 



M5, height of crown 8.4 10.7 



The specimen (fig'. 6) represents a de- 

 ciduous antler of advanced cervid type. The 

 occurrence is of interest as strongly pointing 

 to the presence of a species near Odocoileus 

 in the Bautista Pleistocene. 



A metatarsus, no. 23452, is 

 unfortunately somewhat crushed. 

 Though slightly heavier propor- 

 tionately than the metacarpus de- 

 scribed below (fig. 12) it is of a 

 very similar appearance. The 

 phalanges (figs. 7, 8) are more 

 typically deer-like than antelope- 

 like in form. 



Fig. 6. Odocoileus?, sp. Proximal 

 portion of antler, no. 23419, X %. 

 Bautista beds, California. 



Figs. 7 and 8. Odocoileus?, sp. Phalanges, X %. Fig. 7, tirst phalanx, 

 no. 23524; fig. 8, second phalanx, no. 23523. Bautista beds, California. 



