_Specimens examined._--Total of 63, as follows: _Aguascalientes_: 16 km. N of Aguascalientes, UIMNH 27149; 17 km. E of Aguascalientes, UIMNH 36222; 5 km. SW of Aguascalientes, KU 29495; Cavillito, UIMNH 28134; 11 km. N of Rincon de Romos, UIMNH 40359-60; 2 km. N of San Francisco de los Romos, UIMNH 27569. _Chihuahua_: USNM 8321 (2 specimens); Semachique, CNHM 11825. _Coahuila_: Castanuelas, MCZ 407. _Distrito Federal_: Lago Xochimilco, UIMNH 18709; Pedregal, UMMZ 99790. _Durango_: Coyotes, CNHM 1497; Hacienda Magdalena, USNM 46365; Llano Grande, UMMZ 113634. _Guanajuato_: USNM 16442; Acambaro, KU 45003; Irapuato, UIMNH 35055. _Jalisco_: Atemajac, USNM 46385; Guadalajara, USNM 24969; 5 km. SE of Guadalajara, KU 29508; Jamay, AMNH 19848-9, 19851-2; 3 km. WNW of Lagos de Moreno, KU 27727; 5 km. NW of Sayula, UMMZ 101933. _México_: Atzocozlco, AMNH 19850; Chalco, USNM 110889; San Juan Teotihuacán, EHT-HMS 5378, 5383, MCZ 16051. _Michoacán_: 6 km. E of Carapan, AMNH 69940; 3 km. W of Carapan, UMMZ 114598; 14 km. W of Morelia, UMMZ 104969; Tacambaro, USNM 46557; Tacícuaro, USNM 110888; 11 km. W of Zacapu, UMMZ 104968. _Puebla_: Alseseca, UIMNH 36221; Atlixco, USNM 46433; Puebla, AMNH 19856; 30 km. N of Puebla, USNM 110887; Tecamachalco, UMMZ 88688; 16 km. SSE of Tecamachalco, UMMZ 114597; Tehuacan, UMMZ 88687; 22 km. N of Tehuacan, EHT-HMS 5377. _San Luis Potosí_: USNM 46554; 26 km. SW of San Luis Potosí, UIMNH 28133. _Veracruz_: 3 km. W of Acultzingo, KU 23978; Cumbres de Acultzingo, UIMNH 36224, 36226, UMMZ 114596; Párajo Verde, USNM 110892; questionably from Potrero Viejo, UMMZ 89358-9. _Zacatecas_: 16 km. E of Somberete, UIMNH 27147; 1 km. SW of Tiburcio, KU 33599; 3 km. ESE of Troncoso, KU 29494; 10 km. W of Villa de Arriaga (San Luis Potosí), UIMNH 27151; 24 km. NW of Zacatecas, UIMNH 6393; 13 km. SE of Zacatecas, UIMNH 27148; 26 km. SE of Zacatecas, UIMNH 27568. =Pituophis deppei jani= Cope _Arizona jani_ Cope, Proc. Acad. Nat. Sci. Philadelphia, p. 369, 1860. _Pituophis deppei jani_, Stull, Occas. Papers Mus. Zool. Univ. Michigan, no. 250, p. 2, October 12, 1932, Bull. U. S. Natl. Mus., no. 175, p. 42, April 23, 1940; Smith, Zool. Ser. Field Mus. Nat. Hist., vol. 29, p. 145, February 29, 1944; Smith and Taylor, Bull. U. S. Natl. Mus., no. 187, p. 107, 1940. _Type._--United States National Museum, No. 1522, from Buena Vista, Coahuila, obtained by Lieutenant Darius N. Couch. _Diagnosis._--This subspecies is characterized by solid body-blotches that are black anteriorly and brown posteriorly, anterior dorsal interspaces six or more scales in length, and the absence of dark stripes or rows of spots on the anterior part of the body. There are 215 to 235 ventrals, 52 to 68 caudals, and 21 to 31 dorsal body-blotches. The position of the lateral intercalary spots and lateral streaks are the same as in _deppei deppei_.