404 0. C. Marsh—Notice of new Tertiary Mammals. 
The principal measurements of this specimen are the fol- 
lowing: 
Extent of dental series. ..- -.-- -------.------- -2-- 2008 135° = 
Extent of six lower molars--- --.--------------------- 95° 
a — of large incisor. - .../-211 4 37° 
Transverse diameter ----.--. ------------------------ i? 
ip acro posterior auntie of last premolar.--.---.----. 16° 
Transverse diameter -------------------- ------------ 15° 
Depth of lower jaw below canine --------------------- 80" 
Depth below first molar .-... .--. --------------------- 60° 
50° 
Depth below last lower molar ---.---- .--------------- 
The specimens above described are from the lower Kocene of 
New Mexico. 
Yale College, New Haven, Oct. 23, 1876. 
