412 NOTES ON THE CANID^ OF THE WHITE RIVER OLIGOCENE. 



character of these is intermediate between those of the dogs and those of the Maehairo- 

 donts. 



28. The phalanges are long and depressed ; the second one is excavated on the 

 fibular side, showing that the claws were partially retractile, though much less completely 

 so than in the cats ; the unguals are straight, compressed and bluntly pointed, and with 

 bony hoods much as in Cards. 



29. The known sp>ecies of Daphwnus are : D. vetus Leidy, D. hartshornianus Cope, 

 D.felinus, sp. nov., ? D. Dodgei sp. nov., all from the White River beds, and D. cuspi- 

 gerus Cope, from the John Day. 



30. The cynoid from the Uinta beds, Jliacis uintensis, is regarded as the forerunner 

 of Daphcen us. 



31. The small American cynoids of the White River and John Day, and, perhaps, 

 of the Uinta, should be referred to the European genus, Cynodictis. 



32. The dental formula of Cynodictis is : I |, C }, P |-, M | ; the premolars are 

 small, the sectorials microdont and quite viverrine in appearance, but more trenchant 

 than those of Daphmnus, and the tubercular molars are small. 



:;:!. The skull has a very viverrine look; the lace is short, the cranium long, though 

 shorter and fuller than in Daphwnus, and the postorbital constriction is near the orbit; 

 the sagittal crest is low and weak, and in the small C. lemur is replaced by a lyrate area. 



34. There are no frontal sinuses. 



35. The occiput is low and broad, the crest inconspicuous and the paroccipital pro- 

 cesses are small and not in contact with the bulla?. 



36. The auditory bulla is very large and the posterior chamber fully ossified. 



:!". The cranial foramina are like those of Cams, save for the visible carotid canal. 



38. The mandible has a short, slender horizontal ramus and the ascending ramus is 

 much narrower than in Daphamus. 



39. While the cerebral hemispheres are larger and better convoluted than those of 

 Daphamus, thev are smaller and have fewer, straighter sulci than in the modern Canidw; 

 the olfactory Lobes are large and the cerebellum complex. 



40. The atlas has short transverse processes and its foramina are feline in character. 



41. The axis is much like that of Viverra. 



42. The other cervicals are of canine type. 



43. The thoracic vertebra- are small and have high, slender spines ; on the last two 

 are prominent anapophyses. 



44. The lumbar region is long, heavy and arched upward ; it is composed of seven 

 vertebras, which have very long transverse processes and low, slender spines. Anapo- 

 physes are large anteriorly, but disappear on the sixth. 



