the Marsh Collection, etc. 429 



the Peabody Museum. It consists of the major portion 

 of the skeleton, as well as the skull, of which the basi- 

 cranial area is very excellently preserved (Cat. No. 12771, 

 Y.P.M.). 



Daphoenus hartshomianus (Cope). 



Mandibular rami from Pawnee Buttes, Colorado, and 

 from White River, Nebraska, represent this species in the 

 Marsh Collection, but add little to our knowledge of it. 

 The Nebraska form is, however, slightly smaller than the 

 type, while the Colorado specimens are practically 

 identical. 



Both of the above species of Daphoenus are Middle 

 Oligocene (lower Brule) in age. 



Miocene Canidae. 

 Mesocyon robustus Matthew. 



A part of a lower jaw with two premolars agrees well 

 with the type. It was collected at Gerry's ranch, Colo- 

 rado, whereas the type locality is near the Rosebud reser- 

 vation in South Dakota. 



Nothocyon annectens Peterson. 



This species is represented by rami collected at Scott's 

 Bluff and south of Antelope Creek, both in Nebraska. 

 That from the former locality is somewhat smaller than 

 the type ; the other locality shows specimens exceedingly 

 close to the type. They, however, add nothing new to 

 our knowledge of the species. 



Nothocyon vulpinus Matthew. 



In 1873, Professor Marsh collected specimens along the 

 Niobrara River which are unquestionably referable to 

 Matthew's species. The type locality is north of the 

 Niobrara in southern South Dakota. 



