60 PROCEEDINGS : BOSTON SOCIETY NATURAL HISTORY. 



Genus SCIUROPTERUS F. Cuvier.i 



1825. Scim'0})terus F. Cuvier, Dents du mammif^res, j). 255 

 (description, pp. 161-162). Type. — Sciurus volans Linxaeus. 



*Sciuropterus alpinus (Richardson). 



1828. Pteromys cdpinus Richardsox, Zool. journ., iii, p. 519. 

 1885, MSciiiropteriis vohicella hitdsunius True, Proc. U. S. 



nat. mus., vii (1884), p. 596. 1885. (Part.) 

 1897. )SciHropterus aljyint/s Rhoads, Proc. acad. nat. sci. 



Phila., p. 319. June, 1897. 

 Type locality. — Rocky Mountains, at the sources of the 



Athabaska and Peace Rivers, Alberta, Canada. 



Sciuropterus alpinus fuliginosus Rhoads. 



1897. tSciuro^jteras alpiiiKs fuliginosus Rhoads, Proc. acad. 



nat. sci. Phila., p. 321. June, 1897. 

 Type locality. — Cascade Mountains, near Martin Station, 



Kittitass County, Washington. 



Sciuropterus alpinus lascivus Bangs. 



1899. f'^ciia-optei'us alpinus lascivus Bangs, Proc. New Eng- 

 land zool. club., I, p. 69. July 31, 1900. 

 Type locality. — Tallac, El Dorado County, California. 



Sciuropterus alpinus olympicus Elliot. 



1899. )Sciuropteru,s alpinus olympicus Elliot, Field Colum- 

 bian mus. i^ubl., I, p. 225. February 1, 1899. 

 Type locality. — Happy Lake, Clallam County, ^Yashington. 



Sciuropterus alpinus klamathensis Merriam. 



1897. Sciuropterus alpinus klamathensis ^\.kk^\xm, Proc. biol. 



soc. Washington, xi, p. 225. July 15, 1897. 

 Type locality. — Fort Klamath, Klamath County, Oregon. 



Altitude, 4200 feet. 



1 Eastern forms revised by Bangs (Proc. biol. soc. Washington, x, pp. 162-166, De- 

 cember 28, 1896), Western by Rhoads (Proc. acad. nat. sci. Phila., 1897, pp. 314-327, June, 

 1897). The species are here necessarily arranged alphabetically. 



