126 O. C. Marsh—New Tertiary Mammals. 
es uae here described were found by the writer, last 
; r Henry’s Fork, Wyoming, in the same Tertia ary 
daponite thas “yinlde the specimens already noticed. 
Homacodon vagans, gen. et sp. nov. 
A new and very small suilline pachyderm is well represented 
by the greater part of the skull and skeleton, in excellent pres- 
ervation. The animal was apparently “ss to Hyopsodus, and 
was somewhat larger than H. paulus. From that species, it me 
readily be distinguished by the lower rae molars, which 
the constituent cones isolated, not alternate, and of nearly oqidl 
The inner anterior cone is, however, somewhat the largest, 
suilline type. 
Measurements. 
_ Antero-posterior extent of the three lower true molars,..-17°5 "™ 
a. a a of last lower molar, ..-.--.----- 73 
Tran e diam in from oo ae eee 4° 
Aator ero- sean pee of three upper molars 23s 
= hea Be diameter ia ~~ upper molar,.._.------ 5°5 
‘Transverse diameter in front, 22. 2 206 5.0 oc 674 
mele of  sarepalie: ENE hey ie Mees eyes 
This Man ee perfect specimen was discovered, in September 
last, by Mr. G. G. Lobdell, Jr., of the Yale pact near Henry's 
Fork, Wyoming, in the Mauvaises terres rtiary deposits of 
that region 
Naoikeraglandelae verus, gen. et sp. NOV. 
e P 
are compressed an and obtuse, as in the Canide. "The firs ome 
premolar is large, and near ‘the canine. There are no true sec- 
torial teeth. The crowns of the first and second upper molars 
mere 
