FREE INSTITUTE OF SCIENCE 

 UINTA SELENODONTS 



8 9 



pressed as in the true molars, but is invaded by the valley, just as in Agrio- 

 chcerus, though the buttress is much less prominent than in the latter. 



MEASUREMENTS. 



Upper dentition, length 





P. 



parvus, 

 type. 



P. 



parvus. 



O.070 



P. 



paradox. 



O.067 



P. 



minor. 



" canine, ant.-post. diam. 







.006 



.OO55 



" " transv. diam. 







.006 



.OO5 



" premolar-molar series 





.052 



.050 



.0465 



" premolar series, length 





.030 



.027 



.025 



" molar series, length . 



.026 



.022 



.023 



.02I 



P-i, length 







.006 



.006 



.006 



P-2, length 









.007 



.0065 



.006 



" P-2, width 











.003 



.004 



" P-3, length 







.007 



.007 



.006 



.0065 



P-3, width 







.0065 



.0065 



.OO5 



.OO55 



P-4, length 







.006 



.006 



.O06 



.006 



P-4, width 







.OO9 



.OO9 



.OO9 



.00S 



M-i, length 







.008 



.0065 



.OOS 





M-i, width 







.0095 



.009 



.OO9 





M-2, length 







.OO9 



.0085 



.0085 



.0085 



M-2, width 







.OI I 



.OI I 



.OI I 



.0105 



" M-3, length 







.OIO 



.OO9 



.OO9 



.009 



M-3, width 







.OI2 



.OI2 



.OI2 



.01 1 5 



Lower premolar-molar series 





.056 







' ' premolar series, length 





.028 







' ' molar series, length . 





.028 



.028 





P-i, length 







.006 







" P-i, width 









.005 







" P-2, length 









.006 







" P-3, length 









.008 



.OO75 





P-3, width 









.0035 



.003 





" P-4, length 









.008 



.008 





P-4, width 









.005 



.004 





M-I, length 









.0075 



.OOS 





M-i, width 









.006 



.OO55 





" M-2, length 









.0075 



.OOS 





M-2, width 









.007 



.006 





M-3, length 









.OI2 



.OI2 





M-3, width 









.007 



.O065 





