_Measurements._--A female from 6 miles northeast of Kelso, Cowlitz County, measures: total length 95; length of tail 39; hind foot 8; ear 13; height of tragus 8. _Distribution._--From the eastern base of the Cascade Mountains to the Pacific. Marginal records (from Miller and Allen, 1928: 142) are Oroville, Entiat, and Carson. [Illustration: FIG. 37. Distribution of the hairy-winged myotis in Washington. A. _Myotis volans longicrus._ B. _Myotis volans interior._] =Myotis volans interior= Miller _Myotis longicrus_ interior Miller, Proc. Biol. Soc. Washington, 27:211, October 31, 1914. _Myotis volans interior_ Miller and Allen, U. S. Nat. Mus. Bull., 144:142, May 25, 1928. _Type._--Obtained 5 miles south of Twining, Taos County, New Mexico, by Vernon Bailey on July 23, 1904; type in United States National Museum. _Racial characters._--Smaller and paler than _Myotis v. longicrus_. _Measurements._--Four males and a female from the Blue Mountains, Columbia County, average: total length 93; length of tail 41.5; hind foot?; ear 12; height of tragus 6.3. _Distribution._--Known only from the Blue Mountains area of the southeastern part of the state, from Walla Walla (E. S. B.) east to Anatone (Miller and Allen, 1928: 144). _Remarks._--Of 5 specimens available from the Blue Mountains, 4 are like _interior_ and 1 is like _longicrus_. [Illustration: FIG. 38. Distribution of the California myotis in Washington. A. _Myotis californicus californicus._ B. _Myotis californicus caurinus._] =Myotis californicus= (Audubon and Bachman) California myotis _Description._--_Myotis californicus_ may be separated from all _Myotis_ that occur in Washington, except _Myotis subulatus_, by its small foot (about 6 mm.). It is the only small-footed bat found in western Washington. In eastern Washington, where _Myotis subulatus_ occurs, the cleaned skulls of the two species must be compared before certain identification of some specimens is possible. The skull of _M. californicus_ possesses a higher cranium and more abruptly rising forehead than that of _M. subulatus_. Four geographic races of this bat recognized by Miller and Allen (1928: 149) range from southern Alaska southward over western North America to southern Mexico. Two subspecies occur in Washington.