Vol. Ill] GRINNELL— MAMMALS OF CALIFORNIA 279 



Synonyms — Vespertilio albescens vclifcr, part ; Vespertilio 

 albescens evotis, part. 



Range — Upper Sonoran zone in southern California near 

 the desert divide ; known only from Fort Tejon, Kern County, 

 and Dulzura, San Diego County (Miller, supra cit.). 



Lasionycteris noctivagans (Le Conte) 

 Silver-haired Bat 



Original description — "Vespertilio noctivagans Le Conte, 

 McMurtrie's Cuvier's Animal Kingdom, 1, June, 1831, p. 

 431." 



Type locality— "Eastern United States." 



Range — Chiefly Transition zone in northwestern California, 

 south to Nicasio, Marin County, and Nevada City, Nevada 

 County (Miller, N. Amer. Fauna, 13, 1897, p. 86) ; east to 

 Mount Shasta and to Oroville, Butte County (Mus. Vert. 

 ZooL). Records for summer only. 



Pipistrellus hesperus hesperus (H. Allen) 

 Canyon Bat 



Original description— -Scotopliilus hesperus H. Allen, Smith- 

 sonian Misc. Coll., 7, June, 1864, pp. 43, 44. 



Type locality — Fort Yuma, Imperial County, California. 



Synonyms — Vesperugo hesperus, part; Western Bat, part. 



Range — Lower Sonoran zone east of the San Diegan dis- 

 trict, on the Colorado and Mohave deserts, from the Mexican 

 line north to the vicinity of Walker Pass and Owens Valley ; 

 west to Santa Rosa Mountains, Riverside County, and Fort 

 Tejon, Kern County (Mus. Vert. ZooL). 



Pipistrellus hesperus merriami (Dobson) 

 Merriam Bat 



Original description — Vesperugo merriami Dobson, Ann. 

 and Mag. Nat. Hist., 5th ser., 18, 1886, p. 124. 



Type locality — Red Bluff, Tehama County, California {tide 

 Miller, N. Amer. Fauna, 13, 1897, p. 31). 



Synonyms — Vesperugo hesperus, part ; Pipistrellus hesperus, 

 part ; Western Bat, part. 



