FRINGED BAT. Myotis thysanodes Miller

Field characters.—Slightly larger than Little California Bat, much smaller than Large Brown Bat. Total length 3-1/2 inches (80-87 mm.), tail about 1-1/2 inches (37-40 mm.), hind foot 1/3 inch (8-9 mm.), ear 3/5 inch (14-16 mm.). Coloration dull yellowish brown above, paler on under surface, flight membranes, ears, and muzzle blackish. A fringe of fine hairs along edge of membrane on each side of tail toward tip is distinctive.

Occurrence.—Taken only near Dudley, 6 miles east of Coulterville; altitude 3000 feet.

The Fringed Bat has been taken but a few times in California, and it is not yet possible to give its range, forage habits, or other characteristics with any degree of satisfaction. In the Yosemite region this bat was found only in the neighborhood of Dudley, which is near the western margin of the yellow pine belt. One immature specimen was shot at dusk at a deer lick a little north of Dudley. Another was routed out of the deserted building at the McLaughlin mine where the group of Little California Bats was found. This specimen was started from its retreat by our pounding on the walls. A third individual was jarred out of a loose shake roof in an old building at the Red Cloud Mine. The first example mentioned was taken on July 21, 1920, the other two on July 13 of the same year; all three were males.