AMERICAlSr BATS OF THE GENERA MYOTIS AND PIZONYX 71 



Color. — Above, the tips of the hairs are usually a dull sepia, the 

 buses slate-black; below, the tips of the hairs are buffy in the mid- 

 ventral region, washed on the throat and sides with sepia, their bases 

 slate-black except for a small area at the base of the tail where they 

 are buffy throughout. The ears and membranes are blackish brown, 

 very dark. In some lights the paler tips of the hairs on the back are 

 glossy, with a brassy sheen, but not to the same extent as in the race 

 of Myotis lucifugus occurring with it. Frequently the whole lower 

 surface inclines to a dull buffy tint. The general effect is a small, 

 large-footed, dull-haired bat of uniformly dark color. Immature 

 specimens are even darker, a dull blackish brown above, washed 

 below with smoky. 



Measurements. — For measurements see tables, pages 74 and 75. 



Specimens examined. — Total number 64, from the following lo- 

 calities : 



BRITISH COLUMBIA: Chilliwack, 1 skin (F. M.) ; Kamloops, 1 skin 

 (U.S.N.M.) ; Okanagan, 1 skin (B. M.), nearly typical; Port Moody, 

 1 skin (U.S.N.M.) ; Shuswap. 1 skin (U.S.N.M.) ; Westminster, 2 skins 

 (A. M. N. H.). 



CALIFORNIA: Baird, Shasta County, 1 skin (U.S.N.M.), nearly typical; 

 Cuddeback, Humboldt County, 1 skin (U. C.) ; Lake Leonard, Mendocino 

 County, 1 skin (U. C.) ; Menlo Park, San Mateo County, 1 ale. 

 (U.S.N.M.) ; Nicasio, Marin County, 2 ale. (U.S.N.M.) ; San Carpojo 

 Creek, 7 miles north of Piedras Blancas, San Luis Obispo County, 1 skin 

 (U. C). 



OREGON: Blaine, Tillamook County, 3 skins (U. C), 2 skins (A. Walker) ; 

 Columbia River, 1 skin (A.N.S.P.) ; Crooked River, Crook County, 

 1 ale. (U.S.N.M.) ; McKenzie Bridge, Lane County, 3 skins (U.S.N.M.) ; 

 Mohler, Tillamook County, 1 skin (U. C.) ; Roseburg, Douglas County, 



1 ale. (U.S.N.M.) ; Twelve Mile Creek, 1 ale. (U.S.N.M.) ; Vida, Lane 

 County, 1 skin (U.S.N.M.) ; Wedderburn. Curry County, 1 skin (U.S.N.M.) ; 

 Wilson River, Tillamook County, 1 skin (U.S.N.M.) ; no exact locality, 1 

 skin (A.N.S.P.). 



WASHINGTON : Goldendale, 2 ale. (U.S.N.M.); Hamilton, 1 skin 

 (U.S.N.M.) ; Husum, 1 skin (U.S.N.M.) ; Lake Cushman, 1 skin 

 (U.S.N.M.), 1 skin (M. C. Z.), 8 skins, 5 ale. (U. M.) ; Lake Quinault, 



2 skins (U.S.N.M.) ; Lake Washington, 1 skin (U.S.N.M.) ; Mabton, 

 1 ale. (U.S.N.M.) ; Neah Bay, 1 ale. (U.S.N.M.) ; Nesqually Flats, 5 ale. 

 (A.N.S.P.) ; North Yakima, 1 ale. (U.S.N.M.) ; Roy, 2 skins (U.S.N.M.), 

 not typical; Stevenson. 1 skin (U.S.N.M.). 



Remarks. — The form of Myotis yumanensis occurring on the 

 Northwest Coast closely parallels the race {alascensis) of Myotis 

 lucifugus which is found in the same region, so that, in collections 

 of skins from northwestern localities, the two are often confused. 

 Usually saturatv^ is recognizable by its smaller size, narrower ear, 

 and duller coat, without reference to the skull. 



