with Descriptions of New Forms. 



165 



Measurements. 



Cat. No. 



12794 



Y. P. M. 



mm. 



P 4 , ant.-post. diameter 6 



~M. t , ant. -post, diameter 8.4 



M^ ant. -post, diameter of heel 3.5 



Depth of ramus at sectorial 10.5 



Holotype 



of N. 

 latidens 



mm. 



5.5 



3.5 



10.5 



Nothocyon lemur (Cope). 



Parts of a right and of a left ramus with teeth are 

 referred to this species. They bear the catalogue number 

 12797, Y. P. M. The ramus is considerably more slender 

 than that of N. latidens, and the measurements of this 

 specimen accord well with those of the type. However, 

 the sectorial possesses the small tubercle on the external 

 base of the protoconid, a characteristic of latidens. Mer- 

 riam has described mandibles possessing this character, 

 but otherwise agreeing with A 7 , lemur, and he is inclined to 

 think that this feature is common to both species. I am 

 inclined to concur in this opinion. 



Measurements. 



Cat. No. 



12797 



Y. P. M. 



mm. 



P 4 , ant. -post, diameter 5.5 



M-L, ant.-post. diameter 8 



M l3 ant.-post. diameter of heel 2.9 



Depth of ramus at sectorial 7 



Holotype 

 of N. lemur 



Philotrox condoni Merriam. 



Several parts of rami with teeth represent this genus 

 and species, but they furnish no additional data to Mer- 

 riam 's descriptions (1906) of the form. They were col- 

 lected at both Bridge Creek and Turtle Cove, from middle 

 John Day strata. Cat. No. 12725 is the left ramus of a 

 submature individual, showing partly deciduous and 

 partly permanent dentition, including the incisors. 



