1899] Matthew, Fresh-Water Tertiary of the West. 2 J 



Characteristic Fossil Mammals. 



The more important or abundant species are in heavy type ; in- 

 valid species in roman. Present location of the type specimen is 

 stated (under the formation in which it was found) as follows : 



A. M American Museum of Natural History, New York. 



U. S National Museum, Washington. 



Ph Philadelphia Academy of Sciences. 



Y Yale University, New Haven, Conn. 



K Kansas University, Lawrence, Kan. 



H Harvard University, Cambridge, Mass. 



P Princeton University, N. J. 



T Texas Geological Survey. 



C. G. S Canadian Geological Survey. 



