_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 (1937:17) actually are sulphur-yellow in life. ~Loxocemus bicolor~ Cope _Loxocemus bicolor_ Cope, Proc. Acad. Nat. Sci. Philadelphia, 13:77, June 30, 1861.--La Unión, El Salvador. _Loxocemus sumichrasti_ Bocourt, Ann. Sci. Nat., ser. 6, 4:1, 1876.--Tehuantepec, Oaxaca, México. Apatzingán (6); La Orilla; Lombardia. As noted by Peters (1954:21), this species was not recorded from Michoacán by Smith and Taylor (1945:27), but Gadow (1930:30) collected a specimen at La Orilla in 1908. This specimen (BMNH 1914.1.28.124) is a male having 235 ventrals and 47 caudals, a dark brown dorsum, and cream-colored labials and venter. The anterior chin-shields are considerably longer than the scales bordering the chin-shields. In these characters this specimen agrees with the diagnosis of _Loxocemus bicolor_ given by Taylor (1940c:447), who revived _Loxocemus sumichrasti_ Bocourt. Of the six specimens from Apatzingán in the Tepalcatepec Valley, three males have 243 to 253 (246.6) ventrals and 44 to 45 (44.3) caudals; three females have 238 to 247 (244.0) ventrals and 42 to 44 (43.0) caudals. Certain characters of scutellation utilized by Taylor for separating _L. bicolor_ and _L. sumichrasti_ are inconsistent in this series. The chin-shields are longer than the adjacent scales, like those illustrated in _L. bicolor_ by Taylor (_op. cit._, fig. 1). The relative lengths of the prefrontal and internasal sutures are subequal, or the prefrontal suture is slightly longer. Thus, in these characters of scutellation these snakes are like _L. bicolor_, but in coloration they are like _L. sumichrasti_; the dorsal color in life was an iridescent dark bluish gray, and the belly was pale gray or bluish gray.