96 BULLETIN 18 7, UNITED STATES NATIONAL MUSEUM 



Type.—V.S.l^M. No. 7891. 



Type locality. — Camp Grant, Ariz. 



Range. — Central Nevada and California, and southwestern Utah 

 southward through Baja California, Sonora, and northern Sinaloa; 

 Tiburon Island. 



MASTICOPHIS FLAGELLUM TESTACEUS (Say) 



Coluber testaceus Say, Long's Expedition to the Rocky Mountains, vol. 2, 1823, p. 

 48. 



Cohiier flagellum testaceus Klauber, Copeia, 1942, p. 93. 



Masticophis flagellum testaceus Schmidt and Owens, Publ. Field Mus. Nat. Hist., 

 zool. ser., vol. 29, 1944, p. 110. 



Psammophis flavi-gularis Hallowell, Proc. Acad. Nat. Scl. Philadelpliia, vol. 6, 

 1852, p. 178 (type locality. Cross Timbers, Indian Territory; type, Acad. Nat. 

 Sci. Phila. No. 5388). 



Masticophis flagellum flavigularis Obtenbuegee, Occ. Pap. Mus. Zool. Univ. Michi- 

 gan, No. 139, 1923, p. 2; Mem. Univ. Michigan Mus., vol. 1, 1928, pp. 92-104 

 (part), pis. 1(>-19.— Smith, Journ. Washington Acad. Sci., vol. 31, 1941, p. 397. 



Type. — None known. 



Type locality. — Near headwaters of the Arkansas River, Colo. 



Range. — Central Kansas and southeastern Colorado south through 

 central New Mexico and central Texas to northern San Luis Potosi 

 on the east and extreme northeastern Sonora on the west; does not 

 reach the Mexican border in extreme western Texas and southern New 

 Mexico (recorded in Mexico from Coahuila, Nuevo Leon, San Luis 

 Potosi, Sonora, and Tamaulipas). 



MASTICOPHIS FLAGELLUM VARIOLOSUS Smith 



Masticophis flagellum variolosus Smith, Pi'oc. U. S. Nat. Mus., vol. 93, 1943, 

 pp. 448-449. 



T^y^e.— U.S.N.M. No. 24681. 



Type locality. — Maria Magdalena Island, Tres Marias Islands. 

 Range. — Tres Marias Islands (recorded definitely only from Maria 

 Magdalena Island). 



MASTICOPHIS LATERALIS (Hallowell) 



Leptophis lateralis Haixowei-l, Proc. Acad. Nat. Sci. Philadelphia, vol. 6, 1853, p. 



237. 

 Masticophis lateralis Ortenbubgeb, Occ Pap. Mus. Zool. Univ. Michigan, No. 139, 



1923, p. 2 ; Mem. Univ. Michigan Mus., vol. 1, 1928, pp. 58-67, pis. 14-15. 



Type.— Acad. Nat. Sci. Phila. No. 5365. 



Type locality. — California. 



Range. — ^Western California and northern half of Baja California. 



MASTICOPHIS* MENTOVARIUS MENTOVARIUS (Dmneril, Bibron, and Dnm^ril) 



Coruphodon mento-varius Dum^iril, Bibron, and Dum^ril, Erpetologie g6ni6rale, 

 vol. 7, pt. 1, 1854, p. 187. 



