216 O. C. Marsh—New Tertiary Mammals. 
Measurements. 
Longitudinal extent of last three lower molars,.......... 42 
Antero-posterior diameter of last lower molar,..........-. 1°3 
“ranaverse CiMMelOn; S65. 6s ii es ak Ses CTE 1° 
Depth of jaw below last lower MOURI OS Sein. oes ex «Steal 2 
This specimen, the only known remains of the species, was 
found by the writer, last September, at Grizzly Buttes, Wy- 
oming. 
Liphacodon rugatus, gen. et sp. nov. 
ee new carnivore, about the size of a civet cat, is represented 
our Wyoming collections by the anterior part of a be: jaw, 
a probably by other less important remains. The premolars 
in this specimen have their main cusps peculiarly anaes and 
effective. Their anterior and posterior tubercles, yee are 
pointed, and placed near the base of the crown. The first pre- 
molar is large, and near the canine. The latter was of medium 
size, and inserted in the jaw more nearly vertically than in most 
carnivores. The adjoining incisor was large. ‘The premolars 
ave the enamel of the crown coarsely wrinkled. 
Measurements. 
Longitudinal extent i oe and five next lower teeth,..30° "™ 
Extent of fount prempliras 0s he. ees ak ee 19°2 
Antero-posterior didineier of third premolar,..........-- 6 
‘PRADBVONNO GiMNOLGR 965 i 5 es ce i VE 3° 
Depth of jaw below "fourth prétiolar, 5 600050) ie Hs 8°5 
The type specimen of this species was found by Mr. J. J. 
DuBois. The locality was near Henry's s Fork. 
Harpalodon i ie eh gen. et sp. nov. 
molar. On the fourt 
The premolars preserved are neti i eompresed, - have the 
Measurements. 
Longitudinal extent of last two premolars and first dee é 
mms 
Antero-posterior diameter of first true molar,...-....-+- 5°3 
Antero-posterior diameter of last premolar,..... ....--> 5'8 
Transverse rie diaz en te as ee ie 3 
Height above jaw,....... Peder ee ies ai, ea ee 4°6 
