Part 16

MARTIN, P. S., and HARRELL, B. E.

1957. The Pleistocene history of temperate biotas in Mexico and eastern United States. Ecology, vol. 38:468-480.

OLIVER, J. A.

1948. The relationships and zoogeography of the genus Thalerophis Oliver. Bull. Amer. Mus. Nat. Hist., vol. 92:157-280, pls. 16-19.

OLSON, E. C., and MCGREW, P. O.

1941. Mammalian fauna from the Pliocene of Honduras. Bull. Geol. Soc. Amer., vol. 52:1219-1244.

RUTHVEN, A. G.

1912. The amphibians and reptiles collected by the University of Michigan--Walker Expedition in southern Vera Cruz, Mexico. Zool. Jahrbuch, vol. 32 (4):295-332, pls. 6-11.

SCHUCHERT, C.

1935. Historical geology of the Antillean-Caribbean region. New York, xxvi + 811 pp.

SEARS, P. B., FOREMAN, F., and CLISBY, K. H.

1955. Palynology in southern North America. Bull. Geol. Soc. Amer., vol. 66:471-530.

SHANNON, F. A., and WERLER, J.

1955. Notes on amphibians of the Los Tuxtlas Range of Veracruz, Mexico. Trans. Kansas Acad. Sci., vol. 58 (3):360-386.

SHREVE, B.

1957. Reptiles and amphibians from the Selva Lacandona. In Biological Investigations in the Selva Lacandona, Chiapas, Mexico. Paynter, R. A. (editor). Bull. Mus. Comp. Zool., vol. 116 (4):193-298.

SMITH, H. M.

1947. Notes on Mexican amphibians and reptiles. Jour. Washington Acad. Sci., vol. 37:408-412.

SMITH, H. M., and LAUFE, L. E.

1946. A summary of Mexican Lizards of the genus Ameiva. Univ. Kansas Sci. Bull., vol. 31 (2):7-73.

SMITH, H. M., and TAYLOR, E. H.

1950. An annotated checklist and key to the reptiles of Mexico exclusive of the snakes. Bull. U. S. Natl. Mus., No. 199, v + 253 pp.

STIRTON, R. A.

1954. Late Miocene mammals from Oaxaca, Mexico. Amer. Jour. Sci., No. 252:634-638.

STUART, L. C.

1935. A contribution to a knowledge of the herpetology of a portion of the savanna region of central Peten, Guatemala. Misc. Publ. Mus. Zool. Univ. Michigan, No. 29:1-56, pls. 1-4.

1941. Studies of Neotropical Colubridae VIII. A revision of the genus Dryadophis Stuart, 1939. Misc. Publ. Mus. Zool. Univ. Michigan, No. 49:1-106, pls. 1-4.

1951. The herpetofauna of the Guatemalan Plateau, with special reference to its distribution on the southwestern highlands. Contrib. Lab. Vertebrate Biol., Univ. Michigan, No. 49:1-71, pls. 1-7.