912 THE JOHN DAY FAUNA. 



Vnlpes cinereoargentatus. The sustentaculum is more expanded, and the 

 process to which the external calcaneo-cuboid ligament is attached is con- 

 siderably more prominent The cuboid facet is shaped much as in the gray 

 fox, being wider than in C cancrivorus and C. latrans, and not so wide as in 



C. lupus. 



Measvrements of calcaneum. 



Total leugth 035 



Length of lieel 021 



Widtli at sustentaculum 017 



Width at cuboid facet 015 



Width of cuboid facet Oil 



Depth of cuboid facet OOTti- 



Depth of heel at cxtreuiity 012 



This bone is but little smaller than that of an average coyote. 



Restoration, etc. — The proportions of this species may be derived from 

 the second specimen described, where the skull is accompanied by bones of 

 the skeleton. The dimensions have been about those of the Canis latrans, with 

 some parts rather more slender. The face had a very different expression, 

 owing to its extreme shortness, as compared with the length of the head 

 from the orbits posteriorly. The latter dimension was the same as in the 

 C. latrans; but. the muzzle resembled in its proportions those of a skunk or 

 badger. The brain case is smaller than in the coyote, and the crests for 

 muscular insertion much more elevated. As the otic bullse are absolutely 

 larger than in the coyote, it is fair to infer a delicate sense of hearing. 



This was the most abundant carnivore in Oi'egon during the John Day 

 epoch. Of the seven skulls in my possession I find but little variation in 

 proportions. The one whose mandible is figured on Plate LXXIrt, figs. 1, 

 Irt, is the smallest. 



The specimen from which the first description of this species was drawn 

 up was obtained by Mr. J. L. Wortman Others were previously sent me- 

 by Mr. C. H. Sternberg 



TtMXocYON JOSEPHi Cope. 



Bulletin U. S. Geol. Surv. Terrs., VI, p. 179, February 11, 1861. 

 Plate LXX, fig. 9. 



The anterior portion of a cranium which supports all the teeth is all 

 that represents this species in my collection. It is di.stinguished, first, by its- 



