_Typhlops braminus_, Cuvier, Regne animal, ed. 2, 2:73,
1829.

Apatzingan; Arteaga.

Both specimens known from Michoacan 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 Mexico 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
Coalcoman. 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, Michoacan, Mexico.

El Sabino.

This species still is known definitely only from the type specimen
collected on the lower slopes of the Cordillera Volcanica 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.--Apatzingan, Michoacan, Mexico.

Apatzingan.

No additional specimens of this species have been collected since the
species was described by Duellman (1956b:93). Data given with the
specimen by Gadow indicate that it came from his camp above Apatzingan
at an elevation of about 800 meters. Although the exact position of this
camp is unknown, the lower slopes of the Cordillera Volcanica above
Apatzingan usually support arid scrub forest at elevations below 1000
meters. Therefore, this species probably is an inhabitant of the arid
scrub forest.

~Leptotyphlops phenops bakewelli~ Oliver

_Leptotyphlops bakewelli_ Oliver, Occ. Pap. Mus. Zool. Univ.
Michigan, 360:16, November 20, 1937.--Paso del Rio, Colima,
Mexico.

_Leptotyphlops phenops bakewelli_, Smith, Proc. U. S. Natl.
Mus., 93:445, October 29, 1943.

La Placita (4); La Salada; Ostula.

The five specimens from the coastal lowlands are from elevations of less
than 150 meters; these were collected by Peters (1954:20); the specimen
from La Salada is from an elevation of 580 meters in the Tepalcatepec
Valley. Peters (_loc. cit._) remarked that the rostral and the tip of
the tail that were described as white by Oliver (1937:1