400 F. A. Lucas — Contributions to Paleontology. 



feet and the presence of an ungual shield. The species, repre- 

 sented by the greater part of the skull, and many important 

 portions of the skeleton, was the size of a small Puma, Fells 

 co?icolor, but with much heavier feet. The upper canines are 

 moderate, compressed, flattened on the inner face, with a slight 

 keel on the antero-internal face and well-marked, serrated keel 

 on the posterior edge. The anterior cusp is obsolete on the 

 second, lower premolar, large on the third lower premolar. 

 The mandible is rather deep, convex on the lower edge, and 

 with the flange for the upper canine almost obsolete. The 

 metapodials are stout, those of the hind feet especially so, 

 being a trifle heavier, though slightly shorter, than the corre- 

 sponding bones in a jaguar, Fells onca. The ungual phalanges 

 have a well-developed shield. Some of the principal measure- 

 ments are as follows : 



Length of femur __ _ 



Articular breadth of femur __ _ 



Length of tibia — a little shortened _ . 



Length of third metatarsal 



" " upper molar series _ 



" " lower " " 



" " " " " in Dinictis felina 



" " " " " in Dinictis bombifrons 



230 

 042 

 180 

 070 

 054 

 065 

 052 

 055 



The name of Dinictis major is proposed for this species on 

 account of its size. 



The specimen was obtained by Mr. N. H. Darton in the 

 massive sand at Bird Cage Gap, Bad Lands of Western 

 Nebraska. Type No. 3957, U. S. Natl. Museum. 



