Osborn and Speir—Lower Jaw of Loxolophodon. 807 
six lower incisors were found, but the teeth themselves were 
unfortunately wanting; nevertheless the correct dental formula 
for the Sub-order was established. 
The canines and incisors in L. cornutus are contiguous and 
directed upward and forward at such an angle that the two 
lobes, larger and smaller, are on a line and divide the attrition. 
n nward ; | 
higher, In the canine the cleft. at the head of the valley has 
disappeared and consequently there is a deep single valley ; 
Opposed to this isa more pronounced convexity of the inner 
surface. The fangs - throughout the series are long, stout, arch 
forward slightly, and decrease in size with the crowns. 
Measurements of the Teeth. 
M. 
Entire length: of. molar seties,:< cinces- e408 andes oo. <5 +165 
Length of true molar OBIE, asd ts - Sedecge- oe en: 108 
F ore and aft diameter of last true molar,._.._--.--..--- +047 
Transverse diameter of same, Fane id ae 
Height of crown of Mae, .-.5-. cee ee kes ORD 
Fore and aft diameter of first POO 585k wth 5 oc ON 
SAUBVErse Giniheter OF PAUAD. 08. ese neem cen ees DLE 
Height of crown of same Clue ead. wavuebiscas ¢ = SES 
