SNAKES OF THE GENUS PITUOPHIS 123 



PITUOPHIS SAYI AFFINIS Hallowell 



Pityophis affinis Hallowell, Proc. Acad. Nat. Sci. Philadelphia, 1852, p. 181 

 (no type known; type locality, New Mexico); Reptiles, in Expedition down 

 the Zuni and Colorado Rivers (Sitgreaves) , pp. 130, 146, pi. 10, 1853. 



Pituophis sayi affinis Stull, Occ. Pap. Mus. Zool. Univ. Michigan, No. 250, p. 4, 

 1932.— MacCoy, Occ. Pap. Boston Soc. Nat. Hist., vol. 8, p. 23, 1932.— 

 McKee and Bogert, Copeia, No. 4, p. 180, 1934. — Burt, Journ. Washington 

 Acad. Sci., vol. 25, No. 8, p. 383, 1935.— Taylor, Bull. Univ. Kansas, vol. 37, 

 No. 14, p. 493, 1936. — Gloyd, Program Activ. Chicago Acad. Sci., vol. 8, 

 Nos. 1-2, p. 17, 1937; Bull. Chicago Acad. Sci., vol. 5, No. 5, pp. 99, 119-20, 

 1937. 



Pituophis bellona Baird and Girard, Catalogue of North American reptiles, pt. 1 

 (Serpentes), p. 66, 1853 (part). 



Pityophis sayi var. bellona Cope, U. S. Nat. Mus. Bull. 1, p. 39, 1S75 (part). 



Pityophis sayi bellona Yarrow, Rept. Expl. Surv. W. 100th Merid., vol. 5, p. 540, 

 1875 (part). — Yarrow and Henbhaw, Rep. Chief. Eng. for 1878, Surv. W. 

 100th Merid., vol. 3, app. NN, p. 1634, 1878 (part).— Yarrow, U. S. Nat. 

 Mus. Bull. 24, pp. 12, 103, 1883 (part).— Cope, Proc. U. S. Nat. Mus., 

 vol. 14, p. 641, 1892 (part); Amer. Nat., vol. 30, p. 1015, 1896 (part); 

 Rep. U. S. Nat. Mus. for 1898, p. 872, 1900 (part.) 



Pityophis bellona Cotjes, U. S. Geogr. Surv. W. 100th Merid., vol. 5, p. 617, 1875. 



Pityophis catenifer bellona Brown, Proc. Acad. Nat. Sci. Philadelphia, 1901, 

 p. 54 (part). 



Pityophis sayi sayi Yarrow, U. S. Nat. Mus. Bull. 24, p. 105, 1883 (part). 



Pituophis sayi Van Denbttrgh, Proc. California Acad. Sci., ser. 2, vol. 6, p. 348, 

 1896; ser. 4, vol. 13, p. 219, 1924. 



Pituophis catenifer sayi Ruthven, Bull. Amer. Mus. Nat. Hist., vol. 23, p. 581, 

 1907. 



Pituophis sayi sayi Mosauer, Occ. Pap. Mus. Zool. Univ. Michigan, No. 246, 

 p. 15, 1932. 



Pityophis catenifer Garman, Bull. Essex Inst., vol. 16, p. 27, 1884 (part). 



Coluber melanoleucus Boulenger, Catalogue of snakes in the British Museum, 

 vol. 2, p. 68, 1894 (part). 



Pituophis catenifer deserticola Stejneger, Proc. U. S. Nat. Mus., vol. 25, p. 153, 

 1902.— Ruthven, Bull. Amer. Mus. Nat. Hist., vol. 23, p. 584, 1907 (part).— 

 Stone, Proc. Acad. Nat. Sci. Philadelphia, 1911, p. 232. — Van Denburgh 

 and Slevin, Proc. California Acad. Sci., ser. 4, vol. 3, p. 418, 1913. 



Pituophis catenifer rutilus Van Denburgh, Proc. California Acad. Sci., ser. 4, 

 vol. 10, p. 24, 1920 (type, C.A.S. No. 33869; type locality, Tucson, Pima Co., 

 Ariz.); Occ. Pap. California Acad. Sci., No. 10, vol. 2, p. 733, pi. 78, 1922.— 

 Schmidt, Bull. Amer. Mus. Nat. Hist., vol. 46, p. 688, 1922. — Stejneger 

 and Barbour, Checklist of North American amphibians and reptiles, ed. 2, 

 p. 95, 1923. — Blanchard, Pap. Michigan Acad. Sci. Arts Lett., vol. 4, pt. 2, 

 p. 17, 1924. — Ortenburger and Ortenburger, Contrib. Zool. Lab. Univ. 

 Oklahoma, ser. 2, No. 64, p. 117, 1927. — Burt and Burt, Journ. Washington 

 Acad. Sci., vol. 19, No. 20, p. 457, 1929. — Klauber, Bull. San Diego Zool. 

 Soc, No. 9, pp. 24, 25, 79, 1932. 



Original description. — Hallowell (1852, p. 181) gives the following 

 description of this form under the name Pityophis affinis: 



Sp. char.: Scales much larger upon the sides than upon the back, where they 

 are comparatively small, a series of brownish or black subquadrate blotches upon 

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