CANID^. 931 



length and width of its heel, in which it exceeds any other of our species; 

 and by the possession of a narrow tubercle at the external base of the 

 princij^al cusp. This is a little higher than the heel, but not so high as 

 the internal tubercle. This character is seen in the Vulpes cinereoargentatus 

 among recent dogs. It is present in the four well-preserved sectorials of 

 my collection. The first tubercular is relatively large. It has four cusps, 

 all marginal, two anterior and two posterior, and an anterior basal ledge; 

 no other basal cingala. The second tubercular is missing from all the 

 specimens. There are two mental foramina, a larger below the posterior 

 part of the first premolar, and a smaller below the third premolar. One of 

 the mandibular rami of this species I described along with the skull of 

 Galecynus lemur, under the impression that it belonged to an individual 

 of that species. This error is now corrected. 



Measurements. 



H. 



Length of skull, exclusive of muzzle, anterior toPm. iii 070 



Length of skull from anterior border of orbit posteriorly 060 



Length of skull from postgleuoid process 032 



Length of otic bulla 020 



Width of otic bulla '. 010 



Diametera of sectorial ^*°*'"'°P°«*«"<"' "07 



c transverse iu front 0055 



Diameters of first tubercular | '»'it«'™P''«t«'"'"- 007 



( transverse 008 



Diameters of second tubercular I '^°t'''-°P°«t«"°'^ 0045 



( transverse 005 



Length of inferior dental series 048 



Length of sectorial 008 



Length of heel of sectorial 0035 



Length of inferior tubercular 055 



Depth of ramus at sectorial 0105 



The typical specimen above described was obtained by Mr. J. L. 



Wortman in the cove of the John Day Valley, Oregon, in the John Day 



Miocene foi'mation. One of the mandibles was found by Mr. C. H. 



Sternberg. 



Galecynus lemur Cope. 



Bulletin U. S. Geol. Survey Terrs., VI, p. 181. Cania lemur Copo. Paleontological Bulletin No. 31, p. 2, 

 December, 1879. Proceedings American Philosophical Society, 1879 (1880), p. 371, exclusive 

 lower jaw. 



Plate LXX; figs. 6-8. 



This animal is represented iu my collection by the following speci- 

 mens: (1) A cranium with premaxillary region preserved, without lower 



