70 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th See. 



It is highly probable that a number of Dr. Cooper's speci- 

 mens were deposited in the Museum of the California Academy 

 of Sciences, San Francisco, California; but if so, they were 

 destroyed in the great fire of 1906. 



Doubtless a few of Dr. Cooper's mammal skins are still to be 

 found in widely scattered places among the museums and col- 

 leges of this country and possibly Europe. Of 83 specimens of 

 Cooper mammals listed in the catalogue of the United States 

 National Museum, only 45 could be located on January 1, 1918. 

 It is not unlikely that most of the missing specimens have been 

 distributed to other institutions, in accordance with the policy 

 of distribution and exchange followed by Professor Spencer F. 

 Baird. 



It is of interest to note that Dr. Cooper collected types or 

 cotypes^ of the following eight species of North American 

 mammals, seven of which belong to the Pacific Coast (names 

 given first are as used in publications by Cooper) : 



Scalops Townsendii=Scapanus or arms orarius True. Shoal- 

 water Bay, Pacific County, Washington. 



Sorex vagrans=Sorex vagrans vagrans Baird. Shoalwater 

 Bay, Pacific County, Washington. 



Neosorex navigator=N eosorex pahistris navigator Baird. 

 Fort Vancouver, Washington, according to label ; actually, the 

 headwaters of either the Naches River or the Yakima River, 

 Washington. 



Lasiurus noveboracensis=Nycteris borealis teliotis (H. 

 Allen). Probably from southern California." 



Neotoma occidentalis=N eotoma cinerea occidentalis Baird. 

 Shoalwater Bay, Pacific County, Washington. 



Arvicola pauperrima "^ Lagurus pauperrimus (Cooper). 

 "Great Plains, W. T." 



[?] Spermophilus obsoletus=Citellus obsoletus (Kennicott). 

 Western Nebraska. 



Tamias Toivnsendii=Eiitamias coo peri (Baird). Klickitat 

 Pass, altitude 4500 ft., Cascade Mts., Washington. 



Four of the above species were described in manuscript by 

 Cooper. These are Sorex vagrans, Neosorex navigator, Neo- 



* Cotype used as designating one of two or more specimens together forming the 

 basis of a species, no type having been selected, and the specimens having been col- 

 lected at the same locality. 



