Philadelphia, 16:177, September 30, 1864.--Colima, Colima,
Mexico.

_Sceloporus horridus oligoporus_, Taylor, Univ. Kansas Sci.
Bull., 24:520, February 16, 1938.

Aguililla; Apatzingan (50); Arteaga (2); Capirio (2);
Cascada Tzararacua; Charapendo (4); Coahuayana (3);
Coalcoman (32); 19 km. S of Corralito; 27 km. E of Dos
Aguas; El Sabino (55); El Ticuiz; Huetamo (2); Jazmin;
Jungapeo (2); La Orilla (2); La Placita; Limoncito (3);
Playa Azul (5); Tzitzio (8); Uruapan (4); Volcan Jorullo
(2); Ziracuaretiro; Zirimicuaro (13).

All of the specimens from Michoacan seem to be typical _S. horridus
oligoporus_; none has more than six femoral pores.

Characteristically this species is found in open arid scrub forest; it
reaches its greatest abundance in rocky areas in which there are
scattered leguminous trees and bushes. It has been found in these low
trees and bushes almost as frequently as it has been found on the
ground; none has been seen in large trees or far above the ground.
Altitudinally, this species ranges from sea level to about 1600 meters.

~Sceloporus melanorhinus calligaster~ Smith

_Sceloporus melanorhinus calligaster_ Smith, Proc. U. S.
Natl. Mus., 92:360, November 5, 1942.--Acapulco, Guerrero,
Mexico.

Aguililla; Apatzingan (18); Barranca de Herradero; Capirio
(19); Coahuayana (4); Coalcoman (2); Cofradia (4); El
Cerrito; El Sabino (33); El Ticuiz (3); La Placita (6);
Lombardia (4); Playa Azul; Rio Marquez, 10 km. S of
Lombardia (2); Rio Marquez, 13 km. SE of Nueva Italia (4);
Salitre de Estopila; San Juan de Lima (2); Santa Ana;
Tzitzio; Ziracuaretiro.

Smith (1942a:360) diagnosed _Sceloporus melanorhinus calligaster_ as
having fewer femoral pores than the other subspecies of _S.
melanorhinus_ and as having the lateral belly patches in the males
confluent in the midline. Examination of forty specimens from the
Tepalcatepec Valley and the coastal regions of Michoacan does not
substantiate this diagnosis. The number of femoral pores varies from 15
to 22 (18.9); 14 individuals (35%) had 20 or more femoral pores. Smith
(_loc. cit._) stated that _S. melanorhinus_ in Oaxaca had 18 to 27
(21.6) femoral pores and that 77 per cent of the specimens had more than
20 femoral pores. Of the 24 males examined from Michoacan, 18 have the
lateral belly patches separated in the midline. Usually they are
separated