Dromicus taeniatus Peters, Monats. Akad. Wiss. Berlin, p. 275, 1863.—México.
Rhadinaea taeniata, Bailey, Occ. Pap. Mus. Zool. Univ. Michigan, 412:14, May 6, 1940.
Tancítaro (2).
This species, which is known only from a small region in the mountains of Jalisco and central Michoacán, is represented by two specimens (CNHM 37130 and 39030) collected at Tancítaro (see Schmidt and Shannon, 1947:80).
Salvadora bairdi Jan
Salvadora Bairdii Jan. Icon. gener. ophid., livr. 2, pl. 3, fig. 2, 1860.—México. Type locality restricted to Acámbaro, Guanajuato, México, by Smith and Taylor (1950a:330).
Barranca Seca; Carapan; Cerro San Andrés; Cojumatlán (2); Jiquilpan; Morelia; Pátzcuaro (4); Quiroga; Sahuayo (2); Tacícuaro (12); Tancítaro (56); Uruapan (2); Zacapu (2); between Zitácuaro and Tuxpan (3).
This species is abundant on the Mexican plateau, where it inhabits the more grassy areas in the mesquite grassland and cutover land in the pine forests from 1550 to 2500 meters. Davis and Dixon (1957:21) described a specimen from Zacapu as having two dark paravertebral stripes diverging on the temporals and extending through the eye onto the loreal, a characteristic of Salvadora lineata. On the basis of this specimen, Davis and Dixon suggested that Salvadora bairdi and S. lineata were subspecifically related. The examination of the large number of specimens from Michoacán has revealed this kind of coloration in only one other specimen, an individual from Tacícuaro, in which the stripes diverge, but do not extend through the eye onto the loreal. Data on scutellation for the large series from Tancítaro were given by Schmidt and Shannon (1947:78), and for the series from Tacícuaro by Smith (1943:466).
Salvadora mexicana (Duméril, Bibron, and Duméril)
Zamenis mexicanus Duméril, Bibron, and Duméril, Erpétologie genérale, 7 (pt. 1), p. 695, 1854.—Cape Corrientes, Jalisco, México.