162 M. R. Thorpe — Oregon Tertiary Canidce 



Art. XII. — Oregon Tertiary Canidce, with Descriptions 

 of New Forms; by Malcolm Rutherford Thorpe. 



[Contributions from the Othniel Charles Marsh Publication Fund, Pea- 

 body Museum, Yale University, New Haven, Conn.] 



Contents. 

 Introduction. 

 Description of species. 



Cynodictis oregonensis Merriam. 



C. angustidens (Marsh). 



Nothocyon geismarianus (Cope). 



N.latidens (Cope). 



N. lemur (Cope). 



Philotrox condoni Merriam. 



Paradaphcenus transversus (Wortman and Matthew). 



Temnocyon altigenis Cope. 



Mesocyon coryphceus (Cope). 



M . brachyops Merriam. 



H. josephi josephi (Cope). 



M. josephi secundus, subsp. nov. 



Pericyon socicdis, gen. et sp. nov. 



Enhydrocyon oregonensis, sp. nov. 



Tephrocyon rurestris (Condon). 

 References. 



Introduction. 



During the course of a study of the canid and allied 

 material in the Marsh Collection at Yale, it was found that 

 Amphicyon angustidens Marsh and Canis gregarius Cope 

 were specifically identical. Evidence of this will be pre- 

 sented in a forthcoming paper on the Great Plains 

 Canidse. Marsh's description antedates Cope's by two 

 years, and since both species belong in the genus Cyno- 

 dictis, the C. angustidens of Marsh (1871) has precedence 

 over Cope's name proposed in 1873. The type, Cat. No. 

 11762, Y. P. M., consists of the anterior part of a right 

 ramus with teeth. 



The taxonomic position and affinities of the new genus, 

 Pericyon, herein proposed, are not at present discussed, 

 other than to say that it is probably a derivative of 

 Mesocyon. It apparently stands closer to that genus 

 than it does to Temnocyon, which it approaches in size. 



Description of Species. 

 Cynodictis oregonensis Merriam. 

 This specific name was applied to the John Day forms of 



