Typhlops braminus, Cuvier, Règne animal, ed. 2, 2:73, 1829.
Apatzingán; Arteaga.
Both specimens known from Michoacán were collected by Gadow in 1908. Peters (1954:20) remarked that the specimen from Arteaga probably does not indicate a rapid spreading of the species, which most likely was introduced into México at the time that vessels were stopping at Acapulco from the Philippines (Taylor, 1940b:444), but instead may indicate that pack trains from Acapulco passed through the Sierra de Coalcomán. The occurrence of this snake along a long-used camino substantiates this belief.
Leptotyphlops bressoni Taylor
Leptotyphlops bressoni Taylor, Copeia, No. 1:5, March 9, 1939.—Hacienda El Sabino, Michoacán, México.
El Sabino.
This species still is known definitely only from the type specimen collected on the lower slopes of the Cordillera Volcánica at the northern edge of the Tepalcatepec Valley. A specimen (now lost) reported from Aguililla by Cope (1887:63) possibly represents this species (see Smith and Taylor, 1945:21, and Peters, 1954:20).
Leptotyphlops gadowi Duellman
Leptotyphlops gadowi Duellman, Copeia, No. 2:93, May 29, 1956.—Apatzingán, Michoacán, México.
Apatzingán.