1902.] Matthew, Pleistocene Fauna from Hay Springs. 3^^ 



This is equally a plains fauna-, with two aquatic mammals, 

 Castor and Lutra, not found at Hay Springs. Otherwise the 

 list is very similar to that of Hay Springs, and, like it, is 

 characterized by the absence of the forest types found in the 

 Pleistocene cave deposits, river-gravels, and peat-bogs of the 

 East. , 



Oregon Desert. 



A collection made by Geo. C. Duncan at some point or 

 points of which I can find no exact record. The collection 

 was considered as of Pliocene age by Professor Cope, because 

 it contained Equus, Hipparion, and Teleoceras, along with less 

 characteristic remains referred to Holomeniscus ( = Camelops) 

 and Elephas. The Equus and Elephas bones, however, are 

 from a different matrix from the other bones, and the Holo- 

 meniscus is more probably Plianchenia or Procamelus. They 

 are, therefore, probably from two distinct formations, the 

 older one of the age of the later Loup Fork, the newer one of 

 the age of, if not identical with, the Silver Lake Equus Beds. 



Washtuckna Lake, Washington. 



Taxidea sulcata { = americana), parts of skulls, jaws, 

 limb- and foot-bones. 



Felis, cf. imperialis , parts of limb-bones. 



Felis, cf. concolor, parts of limb-bones. 



Felis, cf. canadensis , parts of limb-bones. 



Mylodon sp., astragali and foot-bones. 



Equus sp., bones of feet and some teeth. 



? Camelops, cf. kansanus, foot-bones. 



? Camelops, cf. vitakerianus, foot-bones. 



? Camelops, sp. max, foot-bones. 



Alces brevitrabalis , parts of antlers, foot-bones, etc. 



Alces semipalmatus , parts of antlers, foot -bones, etc. 



Cariacus ensifer, parts of antlers, foot-bones, etc. 



Oreamnus, parts of horn. 



This fauna shows a large proportion of forest and mountain 

 types, and no aquatic mammals. It is a very inadequate list. 



