362 NOTES ON THE CANIDH OF THE WHITE RIVER OLIGOCENE. 
bones and vertebrae are somewhat larger and heavier than those of D. vetus, and the neu- 
ral spines of the lumbar vertebree 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. 
? DapHznus Doneet, sp. noy. 
As already intimated, the reference of this species to Daphenus 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 Canide, 
Cynodictis, 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 Daphenus, though more perfect specimens will be 
required before its position in the canine phylum can be definitely determined, 
MIACIS Cope. 
This form differs from Daphenus in the construction of the upper tubercular 
molars. M1 has an exceedingly broad external cingulum, forming at the antero-exter- 
nal angle a very large projection ; the internal unpaired cusp found in Daphenus and 
in all subsequent genera of the Canid@ is absent in both m+ and m2. The upper secto- - 
rial is of yery primitive and undeveloped character in the shortness of the posterior cut- 
ting ridge and the great transverse breadth of the crown, 
