10. An ecological study of the garter snake, Thamnophis sirtalis. By Henry S. Fitch. Pp. 493-564, plates 23-25, 14 figures in text. May 17, 1965. 11. Breeding cycle in the ground skink, Lygosoma laterale. By Henry S. Fitch and Harry W. Greene. Pp. 565-575, 3 figures in text. May 17, 1965. 12. Amphibians and reptiles from the Yucatan Peninsula, México. By William E. Duellman. Pp. 577-614, 1 figure in text. June 22, 1965. 13. A new species of turtle, Genus Kinosternon, from Central America, by John M. Legler. Pp. 615-625, pls. 26-28, 2 figures in text. July 20, 1965. 14. A biogeographic account of the herpetofauna of Michoacán, México. By William E. Duellman. Pp. 627-709, pls. 29-36, 5 figures in text. December 30, 1965. 15. Amphibians and reptiles of Mesa Verde National Park, Colorado. By Charles L. Douglas. Pp. 711-744, pls. 37, 38, 6 figures in text. March 7, 1966. Index. Pp. 745-770. Vol. 16. 1. Distribution and taxonomy of Mammals of Nebraska. By J. Knox Jones, Jr. Pp. 1-356, pls. 1-4, 82 figures in text. October 1, 1964. $3.50. 2. Synopsis of the lagomorphs and rodents of Korea. By J. Knox Jones, Jr., and David H. Johnson. Pp. 357-407. February 12, 1965. 3. Mammals from Isla Cozumel, Mexico, with description of a new species of harvest mouse. By J. Knox Jones, Jr., and Timothy E. Lawlor. Pp. 409-419, 1 figure in text. April 13, 1965. 4. The Yucatan deer mouse, Peromyscus yucatanicus. By Timothy E. Lawlor. Pp. 421-438, 2 figures in text. July 20, 1965. 5. Bats from Guatemala. By J. Knox Jones, Jr. Pp. 439-472. April 18, 1966. More numbers will appear in volume 16. Vol. 17. 1. Localities of fossil vertebrates obtained from the Niobrara Formation (Cretaceous) of Kansas. By David Bardack. Pp. 1-14. January 22, 1965. 2. Chorda tympani branch of the facial nerve in the middle ear of tetrapods. By Richard C. Fox. Pp. 15-21, May 22, 1965. 3. Fishes of the Kansas River System in relation to zoogeography of the Great Plains. By Artie L. Metcalf. Pp. 23-189, 4 figures in text, 51 maps. March 24, 1966. 4. Factors affecting growth and reproduction of channel catfish, Ictalurus punctatus. By Bill A. Simco and Frank B. Cross. Pp. 191-256, 13 figures in text. June 6, 1966. 5. A new species of fringe-limbed tree frog, genus Hyla, from Darién, Panamá. By William E. Duellman. Pp. 257-262, 1 figure in text. June 17, 1966. 6. Taxonomic notes on some Mexican and Central American hylid frogs. By William E. Duellman. Pp. 263-279. June 17, 1966. 7. Neotropical hylid frogs, genus Smilisca. By William E. Duellman and Linda Trueb. Pp. 281-375, pls. 1-12, 17 figures in text. July 14, 1966.