LITTLE BROWN BAT 



Alaskan Little Brown Bat. — Myotis lucijngiis alascensis 

 Miller. 

 Like typical Incifugus but darker and with longer ears. 

 Total length, 3.6 inches; tail vertebrae, 1.5 inches; hind foot, 

 .6 inch. Found in "Humid coast district of southern Alaska 

 and northern British Columbia," (Miller) 



High Sierra Bat. — Myotis Incifugus altipetens (H. W. Grinnell). 

 Somewhat similar to alascensis but yellower, upperparts 

 yellowish gray. Total length, 3.4 inches; tail vertebra, 

 1.4 inches; hind foot, .4 inch; forearm, 1.4 inches. Found 

 in " the central Sierra Nevada, the vicinity of Mount Shasta, 

 and the Warner Mountains." (Grinnell). 



White-edged Bat. — Myotis alhicinctus G. M. Allen. 



"A bat of the size and proportions of M. lucifugus but very 

 pallid, with conspicuous white border to the wing mem- 

 branes, broadest between the fifth finger and tarsus." 

 (Allen) Upperparts pale buff; underparts clear white; 

 membranes blackish, except for white edging on wings and 

 on interfemoral membrane. Total length, 3.5 inches; tail 

 vertebras, 1.7 inches; hind foot, .36 inch; forearm, 1,5 

 inches. Has been taken on Mt. Whitney, California 

 (11,000 feet) and at Mammoth, Mono County, California. 



Alberta Little Brown Bat. — Myotis pernox Hollister. 



Closely resembling typical lucifugus externally, but foot 

 larger and membranes blacker. Upperparts uniform 

 glossy brown; underparts deep yellowish gray. Total 

 length, 2>-7 inches; tail vertebrce, 1.6 inches; hind foot, .46 

 inch; forearm, 1.55 inches. Taken at Henry House, 

 Alberta. 



Northern Little Brown Bat. — Myotis altifrons Hollister. 



Size of typical lucifugus but differing in color. Wing 

 attachment to hind feet at base of toes; tragus long and 

 narrow. Upperparts very dark brown; underparts dark 

 drab brown; membranes blackish. Total length, 3.6 inches; 

 tail vertebrae, 1.6 inches; hind foot, .36 inch; forearm, 1.46 

 inches. Taken at Henry House, Alberta. 



Least Brown Bat. — Myotis winnemana Nelson. 



Resembling typical lucifugus but differing in shorter fore- 

 arm and ear and blackish muzzle. Upperparts dark rufous 

 chestnut-brown tinged with golden; blackish on muzzle 

 and sides of head; underparts dull grayish brown. Total 

 length, 3.3 inches; tail vertebra, 1.6 inches; hind foot, .32 

 inch; forearm, 1.22 inches; wing expanse, 11 inches. Taken 

 at Plummer Island, Maryland and at Brandon, Vermont. 



Yellowstone Bat. — Myotis carissima Thomas. 



Resembling typical lucifugus (regarded as a subspecies of 

 lucifugus by Bailey). "Ears, small and pointed; fur, 

 glossy; colors, light hazel-brown above, buffy below; ears 

 and membranes, dark brown or blackish; tail membranes, 

 edged with gray." (Bailey, N. A. Fauna, No. 49, p. 215). 

 Total length, 3.8 inches; tail vertebra, 1.6 inches; hind foot, 



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