240 



University of California Publications. [Geology 



than any of the above described teeth, yet not so high crowned 

 as in many species of Merychippus from the Mascall beds and 

 other middle Miocene formations. 



Diameters of molar no. 10669, anteropost. 18 mm., transv. 24 

 mm. 



, Diameters of molar no. 10675, anteropost. 18 mm., transv. 22.5 

 mm. 



EQUINE ASTEAGALI. 

 Figs. 4-7. 



Two equine astragali in this collection (nos. 10657 and 10721. 

 Univ. Calif. Col. Vert. Palae.), representing widely different 



5 



Figs. 4 and 5. — Hypohippus? astragalus, no. 10657, natural size. 

 Figs. 6 and 7. — Pardhippus? astragalus, no. 3 0721, natural size. 



