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ro; Maravatio (3); Morelia (2); Nahuatzen; Patzcuaro (7); Tacicuaro (8); Tancitaro. This species has been collected in oak, pine-oak, and fir forests at elevations of 1900 to 2450 meters on the mountains rising from the Mexican Plateau. It does not seem to be so abundant as _Conopsis biserialis_. Sufficient ecological data to determine differences in habitat between the two species have not been compiled. ~Diadophis dugesi~ Villada _Diadophis punctatus dougesii_ Villada, La Naturaleza, 3:226, 1875.--Potreros de Balbuena, Distrito Federal, Mexico. _Diadophis dugesii_, Blanchard, Bull. Chicago Acad. Sci., 7:51, December 30, 1942. Morelia (2); Patzcuaro; Quiroga. Apparently this snake is uncommon in Michoacan. It has been found only at elevations of 1900 to 2200 meters in pine and pine-oak forests on the mountains rising from the Mexican Plateau. ~Dryadophis melanolomus stuarti~ Smith _Dryadophis melanolomus stuarti_ Smith, Proc. U. S. Natl. Mus., 93:418, October 29, 1943.--Acapulco, Guerrero, Mexico. Coahuayana; El Ticuiz; La Placita (3); Punto San Juan de Lima; Punto San Telmo. The few specimens indicate that in Michoacan, as elsewhere on the Pacific coast of Mexico, this species is restricted to forested regions on the coastal plain. It does not occur in the Tepalcatepec Valley. The coloration, in life, of a juvenile (UMMZ 114604) is as follows: The dorsum is uniform pale grayish tan on posterior one-third of body and on tail; anteriorly there are pale grayish tan middorsal blotches separated by grayish white interspaces, which are about one-half the length of the blotches. Posteriorly the blotches are less distinct, fading into the uniform grayish tan ground color of the posterior part of the body. The blotches extend laterally onto the fourth and fifth scale rows. Large squarish lateral intercalary blotches of darker brown interconnect with the dorsal blotches. The top of the head is pale olive-brown; a dark brown postorbital stripe extends from the eye to the posterior edge of the last upper labial. The labials, chin, and ventrals 1-30 are creamy white, changing to a dusty cream-color posteriorly; the chin and ventrals 1-30 are heavily spotted with dark brown. The iris is a cream-color above and chocolate brown below; the tongue is blue. ~Drymarchon corais rubidus~ Smith _Drymarchon corais rubidus_ Smith, Jour. Washington A
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