_ Dumeril, Mem. Acad. Inst. France, 23:453,
1835.--Mexico. Type locality restricted to San Juan
Teotihuacan, Mexico, Mexico, by Smith and Taylor
(1950a:334).

_Pituophis deppei deppei_, Stull, Occ. Pap. Mus. Zool. Univ.
Michigan, 250:1, October 12, 1932.

Carapan (2); Morelia; Tacambaro; Tacicuaro; Zacapu.

Duellman (1960b) showed that the widespread species _Pituophis deppei_
was composite and that the "lined subspecies" actually represented
another species, _Pituophis lineaticollis_. _Pituophis deppei_ occurs
only on the Mexican Plateau; in Michoacan it inhabits mesquite grassland
and oak-bunch grass associations between 1900 and 2200 meters.

~Pituophis lineaticollis lineaticollis~ (Cope)

_Arizona lineaticollis_ Cope, Proc. Acad. Nat. Sci.
Philadelphia, 13:300, December 28, 1861.--Southern Mexican
Plateau. Type locality restricted to 24 kilometers northwest
of Oaxaca, Oaxaca, Mexico, by Duellman (1960b:607).

_Pituophis lineaticollis lineaticollis_, Duellman, Univ.
Kansas Publ. Mus. Nat. Hist., 10:607, May 2, 1960.

Acuaro de las Lleguas; Dos Aguas (3); Morelia; Tancitaro
(5).

This species reaches the northern limits of its range in the Sierra de
Coalcoman and on the Mexican Plateau in Michoacan. On the plateau it has
been collected in mesquite grassland at elevations between 1500 and 2000
meters. In the Sierra de Coalcoman individuals were found in open
pine-oak forest at 2100 meters elevation and in a meadow surrounded by
pine-oak forest at 2300 meters.

~Pseudoficimia frontalis~ (Cope)

_Toluca frontalis_ Cope, Proc. Acad. Nat. Sci. Philadelphia,
16:167, September 30, 1864.--Colima, Colima, Mexico.

_Pseudoficimia frontalis_, Guenther, Biologia
Centrali-Americana, Reptilia, p. 96, May, 1893.

Apatzingan; Coalcoman (6); El Sabino (2).

Most specimens were found beneath rocks in grassy areas near the upper
limits of the arid scrub forest, both in the Sierra de Coalcoman and on
the southern slopes of the Cordillera Volcanica; all are from elevations
of less than 1100 meters. One specimen was found on a road at night near
Apatzingan. This species has been found in similar habitats near
Huajintlan, Guerrero, and in arid scrub forest at lower elevations in
Colima. It is unknown from the coast of Michoacan.

~Pseudoficimia pulcherrima~ Taylor and Smith

_Pseudoficimia pulcherrima_ Taylor and Smit