534 O. C. Marsh—Notice of New Tertiary Mammals. 
Transverse diameter through center,......--.----.-----367"* 
Transverse diameter through anterior lobe,. ---.--- ------41° 
Height of crown through antero-external cusp, ---- --- ee © 
Height through inner come, «..- . 2-5. 2...2.--4---++-+-i50a8 
The type specimens of this species are from the upper Hocene 
of Wyoming. They indicate an animal about the size of a 
Tapir. 
Elotherium bathrodon, sp. nov. 
The largest species of this genus hitherto discovered in the 
West is represented by a few remains in the Yale College 
Museum from the Miocene of Dakota. Among these speci- 
mens is a perfect lower molar tooth, apparently the aah ich 
f Hlotherw 
nearly ex 298 on the sides of the crown, but is well marked 
in front. ‘The enamel is rugose. 
Measurements. 
Antero-posterior diameter of last lower molar, ---- -- .---- 475" 
‘Transverse diameter through anterior cones, ---- --------- 34° 
- Transverse diameter through posterior cones, ---- -------- 28° 
; Eetown in Pomiice ol cee eric suse Woe 28° 
Penh of fang in fromty)é ooo su he cole cede ei 55° 
sMeight of erown at heely. < oni. ccs bce nouns glee 
___ This species must have been nearly as large as a Rhinoceros. 
The only species of the genus that approached it in size 1s 
Elotherium Leidyanum Marsh, from the Miocene of New Jersey- 
Yale College, New Haven, April 20, 1874, 
