the Marsh Collection, etc. 445 



specimen, Cat. No. 12825, Y. P. M., is one of the results 

 of the Yale College Scientific Expedition of 1873, under 

 the direction of Professor Marsh. It is a portion of the 

 left ramus with P 2 , P 3 and P 4 , with the alveolus of F t 

 and the canine. The fourth premolar has a low posterior 

 cusp and prominent cingulum posteriorly. There is an 

 alveolus for one incisor. 



FELIDxE. 



Material referable to the cat family is extremely meagre 

 in the Upper Miocene and Lower Pliocene, and it is with 

 this in view that I desire to call attention to some of this 

 material in the Yale collections. 



Felis augustus Leidy. 



The distal end of the humerus of a large felid was 

 collected by Professor Lull on the Niobrara River, in 

 Cherry County, Nebraska. It is a well preserved frag- 

 ment, somewhat over 5 inches in length, bearing catalogue 

 number 12809. The humerus exceeds in size that of Felis 

 leo and is considerably more robust. Felis augustus 

 must have been very close in size and probably in pro- 

 portions to the Bengal tiger, which in turn is larger than 

 the average male lion. 



The lower half of another humerus, better preserved 

 and 9 inches in its present length, was collected by F. W. 

 Darby in Sheridan County, Nebraska, also near the Nio- 

 brara River. This humerus, Cat. No. 12810, Y.P.M, 

 has practically the same dimensions as that of the type, 

 while No. 12809 is about one twelfth smaller. 



Felis sp. 



A scapholunar and a median phalanx, from the Upper 

 Miocene on the Niobrara River, near Fort Niobrara, 

 Nebraska, indicate the presence of a felid or machserodont 

 of about the size of Daphoenodon superbus (Peterson). 

 The scapholunar, Cat. No. 12838, is flatter and less oblong 

 than that of Felis leo and the articular surfaces are in 

 some cases slightly divergent. The resemblance, at any 

 rate, is much closer to the cats, than to any of the other 

 carnivores. 



