94 BULLETIN 17 5, UNITED STATES NATIONAIj MUSEUM 



Pituophis sayi Coopek, U. S. and Pac. R. R. Explor. and Surv., vol. 12, bk. 2, 

 pt. 3, No. 4, p. 300, pi. 22, I860.— Mozley, Trans. Kansas Acad. Sci. for 

 1877-1878, p. 34, 1878.— Hay, 17th Ann. Rep. State Geologist of Indiana, 

 p. 591, 1892.— Bailey, North Amer. Fauna, No. 25, pp. 35, 47, 1905.— 

 DiTMARS, The reptile book, p. 317, 1907. — Hurter, Trans. Acad. Sci. St. 

 Louis, vol. 20, No. 5, p. 173, 1911. — Ditmars, Zoologica, vol. 1, No. 11, pp. 

 220, 234, 1912.— Franklin, Copeia, No. 12, p. 2, 1914.— Stejneger and 

 Barbour, Checklist of North American amphibians and reptiles, p. 86, 1917. — 

 Ruthven, Occ. Pap. Mus. Zool. Univ. Michigan, No. 66, p. 2, 1919. — 

 Blanchard, Univ. Iowa Stud. Nat. Hist., vol. 10, No. 2, p. 207, 1921. — 

 Strecker, Bull. Sci. Soc. San Antonio, No. 4, p. 24, 1922. — Dice, Ecology, 

 vol. 4, No. 1, pp. 50, 53, 1923.— Over, Bull. Univ. South Dakota, ser. 23, 

 No. 10, p. 25, pi. 15, 1923. — Pratt, Manual of the vertebrates of the United 

 States, pp. 219-220, 1923. — Stejneger and Barbour, Checklist of North 

 American amphibians and reptiles, ed. 2, p. 96, 1923. — Blanchard, Pap. 

 Michigan Acad. Sci. Arts Lett., vol. 4, pt. 2, p. 16, fig. 27, 1924. — Orten- 

 burger, Contrib. Zool. Lab. Univ. Oklahoma, ser. 2, No. 55, p. 85, 1925. — 

 Guthrie, Bull. Iowa State Coll. Agr. Mech. Arts, No. 239, pp. 159, 180, pi. 

 1, 2, 4, figs. 1-2, 1926. — Hisaw and Gloyd, Journ. Mammal., vol. 7, No. 3, 

 p. 200, figs. 1-3, 1926.— Ortenburger, Copeia, No. 155, p. 138, 1926; No. 

 163, p. 47, 1927; Contrib. Zool. Lab. Univ. Oklahoma, ser. 2, No. 63, p. 85, 

 1927. — Morse, Copeia, No. 164, p. 71, 1927. — Linsdale, Copeia, No. 164, 

 p. 79, 1927. — Strecker and Williams, Contrib. Baylor Univ. Mus., No. 

 12, pp. 10, 14, 16, 1927.— Pope and Dickinson, Yearb. Publ. Mus. Milwau- 

 kee, vol. 8, No. 1, pp. 48, 56, fig. 18; pi. 15, fig. 6; pi. 16, fig. 3; 1928.— 

 Strecker, Contrib. Baylor Univ. Mus., No. 15, p. 9, 1928; No. 16, p. 16, 

 1928.— Gloyd, Trans. Kansas Acad. Sci., vol. 31, p. 125, 1928.— Burt 

 and Burt, Amer. Mus. Nov., No. 381, p. 11, 1929. — Strecker, Contrib. 

 Baylor Univ. Mus., No. 19, pp. 7-8, 13, 1929. — Ortenburger and Freeman, 

 Publ. Univ. Oklahoma Biol. Surv., vol. 2, No. 4, p. 184, 1930. — Ortenburger, 

 ibid., p. 221, 1930. — Ahl, Das Aquarium, Apr. 1932, p. iv, fig. 



Pityophis sayi sayi Cope, U. S. Nat. Mus. Bull. 1, p. 39, 1875. — Davis and Rice, 

 Bull. Illinois State Lab. Nat. Hist., vol. 3, No. 5, p. 38, 1883; Bull. Chicago 

 Acad. Sci., vol. 1, No. 3, p. 30, 1883.— Yarrow, U. S. Nat. Mus. Bull. 24, 

 pp. 16, 105, 1883 (part).- Cope, Proc. U. S. Nat. Mus., vol. 14, p. 641, 1892; 

 Amer. Nat., vol. 30, p. 1014, 1896; Rep. U. S. Nat. Mus. for 1898, p. 870, 

 1900. 



Pityophis catenifer var. sayi Garman, Mem. Mus. Comp. Zool., vol. 8, No. 3, p. 

 52, 1883; Bull. Essex Inst., vol. 16, p. 27, 1884.— H. Garman, Bull. Illinois 

 State Lab. Nat. Hist., vol. 3, p. 288, 1892. 



Pityophis sayii Higley, Trans. Wisconsin Acad. Sci. Arts Lett., vol. 7, p. 163, 

 1889. 



Pityophis catenifer sayi Taylor, Ann. Rep. Nebraska State Board Agr., 1891, 

 p. 335. — Brown, Proc. Acad. Nat. Sci. Philadelphia, 1901, p. 55. — Branson, 

 Kansas Univ. Sci. Bull., vol. 2, No. 13, p. 357, 1904.— Strecker, Proc. Biol. 

 Soc. Washington, vol. 21, No. 9, p. 48, 1908; No. 12, p. 74, 1908; Baylor 

 Univ. Bull., vol. 12, No. 1, pp. 7, 14, 1909. — Ellis and Henderson, Univ. 

 Colorado Stud., vol. 10, No. 2, p. 93, figs. 24-6, 35-6, 1913.— Ruthven, 

 Iowa Acad. Sci., vol. 19, p. 207, 1913. — Ellis and Henderson, Univ. 

 Colorado Stud., vol. 11, No. 4, p. 262, 1915. — Strecker, Baylor Univ. Bull., 

 vol. 18, No. 4, p. 35, 1915.— Engle, Copeia, No. 128, p. 37, 1924. 



Pityophys catenifer sayi Notestein, 7th Ann. Rep. Michigan Acad. Sci., p. 116, 

 1906. 



