ge, instead of a brick-red, dorsum. Additional specimens from the
Sierra de Coalcoman will be required in order to determine whether this
specimen is a representative of an orange-colored population or merely
is aberrant in coloration.

The present specimen is from an elevation of 900 meters in oak forest on
the southern slopes of the Sierra de Coalcoman; other locality records
for the species indicate that it inhabits broad-leafed forest in
foothills from Nayarit to Puebla.

~Conophis vittatus vittatus~ Peters

_Conophis vittatus_ Peters, Monats. Akad. Wiss. Berlin, p.
519, 1860.--No type locality given. Type locality restricted
to Laguna Coyuca, Guerrero, Mexico, by Smith and Taylor
(1950a:331).

_Conophis vittatus vittatus_, Smith, Jour. Washington Acad.
Sci., 31:119, March 17, 1941.

Arteaga; Coalcoman (4); La Playa; 19 km. S of Tzitzio.

All specimens of this terrestrial snake have been collected in areas of
scrub forest between 800 and 1100 meters above sea level. Since the
species is known from the coastal regions of Guerrero and Colima, its
absence from the cost of Michoacan is unexplainable; probably the lack
of specimens from these areas is due solely to inadequate collecting.

~Conopsis biserialis~ Taylor and Smith

_Conopsis biserialis_ Taylor and Smith, Univ. Kansas Sci.
Bull., 28 (2):333, November 12, 1942.--Ten miles west of
Villa Victoria, Mexico, Mexico.

Capacuaro (5); Cerro San Andres; Cheran; Ciudad Hidalgo;
Macho de Agua (4): Patzcuaro (8); Tancitaro (24); Uruapan
(9); 24 km. SE of Zitacuaro (14).

This species is abundant in the coniferous forests at elevations from
1550 to 2800 meters throughout the Cordillera Volcanica; apparently it
does not occur in the Sierra de Coalcoman.

On August 1, 1956, a copulating pair was found beneath a rock at
Capacuaro.

One of the best characters to distinguish this species from _Toluca
lineata_, which occurs with _Conopsis_ throughout its range in
Michoacan, is the presence of large, black ventral blotches in _Conopsis
biserialis_, as contrasted with the two rows of small black spots in
_Toluca lineata_.

~Conopsis nasus~ Guenther

_Conopsis nasus_ Guenther, Catalogue... snakes... British
Museum, p. 6, 1858.--California (in error). Type locality
restricted to Guanajuato, Guanajuato, Mexico, by Smith and
Taylor (1950a:330).

Carapan (2); Erongaricua