Part 25

1933. Notes on the breeding habits of lizards. Zool. Ser. Field Mus. Nat. Hist., 20:71-76.

1946. On the zoogeography of the Holarctic region. Copeia, 1946:144-152, 1 fig.

1950. The concept of geographic range, with illustrations from amphibians and reptiles. The Texas Journal of Sciences, 1950, No. 3:326-334.

SCHROEDER, R. C.

1951. A range extension for Eumeces laticeps. Herpetologica, 7:172.

SCOTT, T. G., and SHELDAHL, R. B.

1937. Black-banded skink in Iowa. Copeia, 1937:192.

SEIBERT, H. C., and HAGEN, C. W., JR.

1947. Studies on a population of snakes in Illinois. Copeia, 1947:2-22.

SIMPSON, G. G.

1947. Holarctic mammalian faunas and continental relationships during the Cenozoic. Bull. Geol. Soc. Am., 58:613-688, 6 figs.

SHELFORD, V. E.

1945. The relative merits of the life zone and biome concepts. Wilson Bull., 57:248-252, 1 map.

SMITH, H. M.

1946. Handbook of lizards. Comstock Publishing Co., Ithaca, N. Y. xxi + 557 pp., 135 pls., 136 figs., 41 maps.

1950. Handbook of amphibians and reptiles of Kansas. Univ. Kansas Publ., Mus. Nat. Hist., Misc. Publ., 2:1-336 pp., 233 figs.

SMITH, H. M., and ETHERIDGE, R.

1953. Resurrection of Plestiodon Bellii Gray (Reptilia: Squamata: Lacertilia) for a Mexican Skink. Herpetologica, 8:153-161.

SMITH, H. M., and LEONARD, A. B.

1934. Distributional records of amphibians and reptiles in Oklahoma. Am. Midl. Nat., 15:190-196.

SMITH, M. A.

1935. Reptilia and Amphibia. Vol. II-Sauria in The fauna of British India including Ceylon and Burma. Taylor and Francis, London, xiii + 440 pp., 92 figs.

SMITH, P. W.

1947. The reptiles and amphibians of western and central Illinois. Bull. Chicago Acad. Sci., 8:21-40.

STEBBINS, R. C.

1948. Nasal structure in lizards with reference to olfaction and conditioning of inspired air. Am. Journ. Anat., 83:183-221.

STEBBINS, R. C., and ROBINSON, H. B.

1946. Further analysis of a population of the lizard Sceloporus graciosus gracilis. Univ. California Publ. Zool., 48:149-168, 7 pls., 2 figs.