1913. Mammals from Ecuador and related forms. Arkiv för Zool., 8(no. 1):1-36, 1 pl., 1 text fig., July 12, 1913.
1921. A second contribution to the mammalogy of Ecuador with some remarks on Caenolestes. Arkiv för Zool., 14(no. 4):1-104, pl. 1, 8 figs. in text.
Lyman, C. P.
1943. Control of coat color in the varying hare Lepus americanus Erxleben. Bull. Mus. Comp. Zoöl., 93:393-461, 11 pls., December, 1943.
Lyon, M. W., Jr., and Osgood, W. H.
1909. Catalogue of the type-specimens of mammals in the United States National Museum, including the Biological Survey Collection. U. S. Nat. Mus. Bull., 62: ix + 325.
Macgillivary, W.
1848? The naturalists library, Vol. XVII. Mammalia, pp. 1-309, J. Ogden and Co., London.
Manniche, A. L. V.
1910. The terrestrial mammals and birds of northeast Greenland. Meddelelser om Grønland, 45:1-200, 6 pls., 20 figs. in text, 1910.
Manning, T. H.