_Cnemidophorus calidipes_ Duellman, Occ. Pap. Mus. Zool. Univ. Michigan, 574:1, December 23, 1955.--Capirio, Michoacán, México. Apatzingán (56); 12-20 km. S of Apatzingán (5); 19 km. E of Apatzingán (5); 25 km. S of Arteaga; Capirio (57); El Espinal (13); Jazmin (9); 11 km. S of Lombardia; Nueva Italia. This small, distinctive species of the _sexlineatus_-group of _Cnemidophorus_ was discovered in the Tepalcatepec Valley in 1955 (Duellman, 1955); subsequent field studies showed it to be widespread in the valley (Duellman, 1960c). One specimen (KU 29747) is from the relatively arid, low Pacific slope of the Sierra de Coalcomán, 25 kilometers south of Arteaga. All other specimens have been taken at elevations of 200 to 650 meters in the Tepalcatepec Valley, where the species characteristically inhabits the open scrub forests of the valley floor, especially the _Cercidium-Prosopis-Apoplanesia_ associations, where there is a sparse growth of grasses. In this habitat it is most frequently seen in association with _Cnemidophorus costatus zweifeli_ and _C. deppei infernalis_. Aside from the characters given in Table 5, _Cnemidophorus calidipes_ differs from other species of _Cnemidophorus_ in Michoacán by possessing a complete (or nearly so) supraorbital semicircle-series of granules; in other species the granules seldom extend anteriorly beyond the posterior border of the frontal. ~Cnemidophorus communis communis~ Cope _Cnemidophorus communis_ Cope, Proc. Amer. Philos. Soc., 17:95, 1877.--No type locality given; type locality restricted to Colima, Colima, México, by Zweifel (1959a:74). _Cnemidophorus communis communis_, Zweifel, Bull. Amer. Mus. Nat. Hist., 117:74, April 27, 1959. Aguililla (2); Apatzingán (6); 13 km. S of Arteaga (2); 19 km. S of Arteaga (3); Capirio (3); Coahuayana (3); Coalcomán (44); El Ticuiz; between El Ticuiz and Ojos de Agua de San Telmo; La Placita (6); Pómaro (2); Río Cachán; Salitre de Estopila; San Juan de Lima. The specimens from Coalcomán and the coastal localities were referred to _Cnemidophorus sacki copei_ by Peters (1954:18) and Duellman (1954b:12). Zweifel (1959a) referred these specimens to _Cnemidophorus communis communis_ and pointed out the probable sympatry of _C. communis_ and _C. costatus_ (= _sacki_ of Zweifel) in the Tepalcatepec Valley.