_=Myotis yumanensis yumanensis=_ (H. Allen). Yuma Myotis.--Durrant (1952:43) reported this subspecies from Utah on the authority of Hardy (1941:289) who had specimens from two localities in extreme southwestern Utah. Durrant (1952:41) referred specimen Number 6784, from Willow Creek, 25 miles south of Ouray, Uintah County, to _Myotis lucifugus carissima_. Restudy of this specimen reveals that it is _Myotis yumanensis yumanensis_. This identification has been corroborated by Dr. Philip H. Krutzsch, University of Pittsburgh, Pennsylvania, and extends the known range of the subspecies _M. y. yumanensis_ approximately 300 miles northeastward in Utah. See also Krutzsch and Heppenstall (1955:126) who record specimens from 2 mi. SW Jensen. _=Myotis subulatus melanorhinus=_ (Merriam). Small-footed Myotis.--This bat previously was known from only seven localities in Utah, which indicated that it occurred in only the western and southern areas of the state. Four additional records are now available from the following localities: Logan Canyon Cave, 15 miles north of Logan, Cache County; Weber College Campus, Ogden, Weber County; University of Utah Campus, Salt Lake City, Salt Lake County; Six Mile Canyon, 3-1/2 miles east of Sterling, Sanpete County. These occurrences extend the known range to the eastward in Utah, and indicate a state-wide distribution. Specimens of the subspecies _Myotis s. melanorhinus_ are recorded also from as far north as Double Springs, Custer County, Idaho (Davis, 1939:117). _=Pipestrellus hesperus hesperus=_ (H. Allen). Western Pipistrelle.--Heretofore, the northernmost known specimens of this bat from Utah were from Old Lincoln Highway, 18 miles southwest of Orr's Ranch, Tooele County. Specimen Number 7531 is now available from cliffs NE [3 mi.] Ogden, Weber County, and extends the known range of this species in Utah approximately 100 miles northeastward. This pipistrelle probably inhabits all of northern and northwestern Utah in suitable habitats. This probability is supported by Davis' (1939:120) report of a specimen from Salmon Creek, eight miles west of Rogerson, Twin Falls County, Idaho. See also Krutzsch and Heppenstall (1955:127) who record a specimen from, eastern Utah as far north as, Desert Springs which is 10 mi. SW Ouray, Uintah County.