remaining entrance measuring approximately 30 by 30 feet.
This quarry has an area of approximately one-fifth square mile and is
usually flooded with several feet of water. The other man-made cave,
known formerly as the National Stone Quarry, is one mile northeast of
Louisville, Cass County. This quarry was abandoned in September, 1938,
and until the winter of 1948-1949 had eight or nine entrances and two
air shafts. It was approximately one-third square mile in area. All the
openings to this quarry were covered in late 1949. Bats were first
observed in the National Stone Quarry by one of us (Webb) as early as
1939, less than a year after operations in the quarry ceased.

METHODS AND ACKNOWLEDGMENTS

Records of Nebraskan bats are arranged in two categories;
specimens examined and additional records. The latter refer
to citations in the literature. Genera are arranged
according to Simpson (1945:59, 60), and species are listed
alphabetically under each genus. Specimens examined are in
the personal collection of the authors unless otherwise
indicated.

In connection with this study the authors acknowledge the
assistance of Drs. Edson H. Fichter, Department of
Biological Sciences, Idaho State College, and E. Raymond
Hall and Rollin H. Baker, University of Kansas Museum of
Natural History for critical assistance with the manuscript.
We are indebted to Mr. Richard B. Loomis, University of
Kansas, for aid in collecting specimens; to Dr. Henry W.
Setzer, United States National Museum, for providing
information on possible early Nebraskan records; and to Mr.
Fred Brammer, Ash Grove Lime and Portland Cement Company,
Louisville, Nebraska, for information on, and permission to
collect in, the quarries of that area. For the loan of
specimens we are grateful to Dr. William H. Burt, University
of Michigan Museum of Zoology, Dr. C. Bertrand Schultz,
University of Nebraska State Museum, Dr. Otis Wade,
University of Nebraska Department of Zoology, Miss Lucille
Drury, Cleveland Museum of Natural History, Mr. W. E.
Eigsti, Hastings Museum, Hastings, Nebraska, and to those in
charge of the collections of the Nebraska Game, Forestation
and Parks Commission.

ACCOUNTS OF SPECIES

~Myotis evotis evotis~ (H. Allen)

Long-eared Myotis

_Vespertilio evotis_ H. Allen, Smithsonian Misc. Coll.,