Neotropical Bats from Northern Mexico

ly small scattered remnants that are difficult to visit, in the bottoms of deep canyons.

LITERATURE CITED

COCKRUM, E. L.

1955. Reproduction in North American Bats. Trans. Kansas Acad. Sci., 58:487-511.

DALQUEST, W. W.

1953. Mexican bats of the genus Artibeus. Proc. Biol. Soc. Washington, 66:61-66.

DAVIS, W. B.

1958. Review of Mexican bats of the Artibeus "cinereus" complex. Proc. Biol. Soc. Washington, 71:163-166, 1 fig. in text.

HALL, E. R., and KELSON, K. R.

1959. The mammals of North America. The Ronald Press, N. Y., Vol. I, xxx + 1-546 + 1-79 pp., 312 figs. and 320 maps in text, unnumbered figures in text.

HOFFMEISTER, D. F.

1959. Distributional records of certain mammals from southern Arizona. Southwest. Nat., 4:14-19, 1 fig. in text.

KOOPMAN, K. F., and MARTIN, P. S.

1959. Subfossil mammals from the Gómez Farías region and the tropical gradient of eastern Mexico. Jour. Mamm., 40:1-12, 1 fig.