Distribution in Nebraska.—Pine Ridge area of northwestern part of state.
Record of occurrence.—Specimen examined, 1, as follows: Sioux Co.: Warbonnet Canyon, 1 (Univ. Nebr. State Mus.).
Remarks.—This specimen was taken by Merritt Cary on July 22, 1901.
Myotis keenii septentrionalis (Trouessart)
Eastern Long-eared Myotis
[Vespertilio gryphus] var. septentrionalis Trouessart, Catal. Mamm. viv. foss., p. 131, 1897, type from Halifax, Halifax Co., Nova Scotia.
Myotis keenii septentrionalis, Miller and Allen, Bull. U. S. Nat. Mus., 144:105, May 25, 1928.
Distribution in Nebraska.—Known from limestone quarries in Cass and Sarpy counties. Probably in other parts of extreme eastern Nebraska.
Records of occurrence.—Specimens examined, 35, as follows: Cass Co.: 1 mi. NE Louisville, 4. Sarpy Co.: 1/2 mi. W Meadow, 31 (some of these specimens have been deposited in other collections as follows: Private Collection of P. H. Krutzsch, 3; Private Collection of W. G. Frum, 2; Nebr. Game, Forestation and Parks Comm., 1; Univ. Kansas Mus. Nat. Hist., 2; Univ. Nebr. State Mus., 7).
Remarks.—Although not so common as Pipistrellus in the limestone quarries, hibernating bats of this species frequently are found there, usually as solitary individuals either in drill holes or clinging to the walls of the quarries; occasionally, however, two or three bats have been found together in a single drill hole.