r snakes in their states.
Alice V. Fitch, Chester W. Fitch and Donald S. Fitch assisted
in the collection of fresh specimens in Oregon and Utah and
the unsuccessful search of many a mosquito-infested meadow in
southern Wyoming and northwestern Colorado in July, 1959. Dr.
R. G. Webb made available his MS on reptiles of Oklahoma.

This taxonomic study of garter snakes originated as a
by-product of the senior author's study of ecology and
economic bearing of snakes in the central Plains Region of the
United States, for which support received from the National
Science Foundation is gratefully acknowledged.

LITERATURE CITED

BAIRD, S. F.

1859. Reptiles of the boundary. United States and Mexican
Bound. Surv., 2, 1-35, 41 pls.

BAIRD, S. F., and GIRARD, C.

1853. Catalogue of North American reptiles in the Museum of
the Smithsonian Institution. Smithson. Miscl. Col., part 1,
Serpents., pp. xvi + 172.

BROWN, B. C.

1950. An annotated check list of the reptiles and amphibians
of Texas. Baylor Univ. Studies, pp. xii + 259.

BUNDY, R. E.

1951. New locality records of reptiles in New Mexico. Copeia,
1951 (4):314.

COCKERELL, T. D. A.

1910. Zoology of Colorado. Univ. of Colorado, Boulder, vii +
262 pp.

CONANT, R.

1958. A field guide to the reptiles and amphibians of the
United States and Canada east of the 100th Meridian. Houghton
Mifflin Co., Boston, xviii + 366 pp.

COPE, E. D.

1900. The crocodilians, lizards and snakes of North America.
Rept. U. S. Nat. Mus. for 1898, pp. 153-1270.

FITCH, H. S.

1941. Geographic variation in garter snakes of the species
_Thamnophis sirtalis_ in the Pacific Coast region of North
America. Amer. Midland Nat., 26:570-592.

FOX, W.

1951. The status of the gartersnake, _Thamnophis sirtalis
tetrataenia_. Copeia, 1951:257-267.

FOUQUETTE, M. J., and LINDSAY, H. L., JR.

1955. An ecological survey of reptiles in parts of
northwestern Texas. Texas Jour. Sci., 7(4):402-421.

HUDSON, G. E.

1942. The amphibians and reptiles of Nebraska. Nebraska
Conserv. Bull. No. 24, pp. 1-146.

LITTLE, E. L., JR., and KELLER, J. G.

1937. Amphibians and reptiles from the Jornada Experimental
Range, New Mexico. Copeia, 1937 (4):402-421.

MASLIN, T. P.

1959. An annotated check list of the amphibians and reptiles
of