362 NOTES ON THE CANID-E OF THE WHITE RIVER OLIGOCENE. 



bones and vertebras are somewhat larger and heavier than those of D. vetus, and the neu- 

 ral spines of the lumbar vertebrae are very high and incline strongly forward. In size 

 D. felinus is the largest and most massive species of the genus. The type specimen 

 consists of a fragmentary skeleton (No. 11425) with which are associated both mandibu- 

 lar rami, and which was found by Mr. Gidley in the Oreodon beds of Hat Creek Basin, 

 Neb., in 1896. 



? Daph^enus Dodgei, sp. nov. 



As already intimated, the reference of this species to Daphcenus cannot yet be defin- 

 itely made, but the material so far obtained, consisting of lower jaws, affords no sufficient 

 ground for separating it from that genus. The inferior dental series is relatively short ; 

 the premolars are much smaller, especially in the antero-posterior dimension, than those 

 of the later species from the Oreodon beds, but, at the same time, they are proportion- 

 ately thick and heavy. The lower sectorial has a low, massive anterior triangle and a 

 basin-shaped talon, with the inner cusp much smaller than the outer. The horizontal 

 ramus of the mandible is short, but relatively much stouter than in any of the other 

 species, and has a more sinuous ventral border, which rises steeply toward the angle. 



This species is dedicated to my friend, Mr. Cleveland H. Dodge, of New York, 

 whose liberality has made possible much of the work undertaken by the Princeton 

 Museum and to whose kindness I am under the greatest obligations. 



The type specimen (No. 11422) was found by Mr. Gidley in the Titanotherium 

 beds of the Hat Creek Basin. 



Before proceeding to an examination of the next genus of White River Canhbv, 

 Oynodictis, it will be necessary to introduce a brief description of a species which has 

 been found in the Uinta stage of the upper Eocene (or lower Oligocene) and which ap- 

 parently represents the forerunner of Daphcenus, though more perfect specimens will be 

 required before its position in the canine phylum can be definitely determined. 



MIACIS Cope. 



This form differs from Daphcenus in the construction of the upper tubercular 

 molars. M ' has an exceedingly broad external cinguluni, forming at the antero-exter- 

 nal angle a very large projection ; the internal unpaired cusp found in Daphcenus and 

 in all subsequent genera of the Canidai is absent in both m J and m- 2 . The upper secto- 

 rial is of very primitive and undeveloped character in the shortness of the posterior cut- 

 ting ridge and the great transverse breadth of the crown. 



