AMERICAiSr BATS OF THE GENERA MYOTIS AND PIZONYX 49 



almost uniform sooty brown. Individuals in imperfect pelage, in 

 which the long glossy-tipped hairs are not wholly grown out, are a 

 very dark sooty color, in contrast to the grayer tint of specimens of 

 M. lucifugus luoifugus in corresponding condition. The ears, nose, 

 and membranes are very dark, almost black. 



Measurements. — For cranial measurements see table, page 60. 



Specimens examined. — Total number 95, from the following 

 localities : 



ALASKA: Admiralty Island, Mole Harbor, 1 skin (U.C.) ; Baranoff 

 Island. Red Bluff Bay, 10 skins (U.C.) ; Boca de Quadra, 1 .skin (U.C.) ; 

 Ketchikan, 1 skin, 2 ale. (U.S.N.M.) ; Loring, 1 skin, 3 ale. (U.S.N.M.) ; 

 Revillagigedo Island, 2 skins (U.C.) ; Sitka, 7 ale. including the type 

 (U.S.N.M.). 



ALBERTA: Henry House, 2 skins (U.S.N.M.), not typical (type and 

 paratype of pe'rnox). 



BRITISH COLUMBIA: Field, 1 skin (U.S.N.M.); Okanagan, 1 skin 

 (M.C.Z.) ; Queen Charlotte Islands., 4 ale. (U.S.N.M.), Skidegate, 4 

 skins, 1 ale. (U.S.N.M.) ; Sicamous, 1 ale. (A.N.S.P.) ; Vernon, 1 skin 

 (M.C.Z.) . 



CALIFORNIA: Castle Lake, Siskiyou County, 1 skin (U.C), not typical; 

 Eureka, Humboldt County, 1 skin (U.C). 



IDAHO: Felton Mills, 1 skin (Chas. R. Conner Museum). 



MONTANA: Columbia, 1 ale. (U.S.N.M.); Corvallis, 4 skins (U.C),. 

 5 skins (U.S.N.M.) and 1 skin not typical (U.S.N.M.). 



OREGON: Bend, 3 skins (U.S.N.M.), not typical; Blue River, 1 skin 

 (U.S.N.M.), not typical; Cornucopia, 1 skin (U.S.N.M.); East Pine 

 Creek, 1 skin (U.S.N.M.), not typical; Lapine, 1 skin (U.S.N.M.); 

 McKenzie Bridge, 2 skins (U.S.N.M.) ; Mohler, Tillamook County, 1 

 skin (U.C). 



WASHINGTON: Boulder Lake, 1 skin (F.M.) ; Butte Creek, Blue Moun- 

 tains, Columbia County, 1 skin (U.C.) ; Carson, Skamania County, 4 

 skins (U.S.N.M.) ; Chilliwack River, Whatcom County, 3 ekins 

 (U.S.N.M.) ; Godman Springs, 5 skins (S. H. Lyman) ; Hannegan Pass, 

 Whatcom County, 1 skin (U.S.N.M.) ; Husum, Klickitat County, 1 skin 

 (U.S.N.M.) ; Lyle, Klickitat County, 1 skin (U.S.N.M.) ; Mount Ranier, 

 Pierce County, 5 skins (U.S.N.M.) ; Soleduc River, Olympic Mountains, 

 1 skin (U.S.N.M.), 1 skin (F.M.) ; Trout Lake, Klickitat County, 1 skin 

 (U.S.N.M.) ; Wenatchee Lake, Chelan County, 2 skins (U.S.N.M.) ; What- 

 com Pass, Whatcom County, 1 skin (U.S.N.M.). 



RemMrhs. — There is apparently no difference in size between 

 My Otis Iwdfugus al-ascensis and the tjrpical race; the length of ear^ 

 noted in the original description as slightly greater, appears on 

 further study to be the same in both forms. Occasional individuals 

 representing the extreme of size do, however, occur. Thus, two 

 specimens from Henry House, Alberta, are distinctly larger than the 

 average; in color one is intermediate between typical lucifugv^s and 

 alascensis, while the other can not be distinguished from richly 

 colored examples of the eastern subspecies. The darker specimen 



