_Distribution._--Pacific coastal region of Chiapas, México, southeastward into Guatemala; southeastern highlands and the dry valley of central and eastern Guatemala; Caribbean lowlands of Honduras southward to the region of Tegucigalpa, Honduras (fig. 4). _Specimens examined._--Total of 27, as follows: GUATEMALA: _no specific locality_, CNHM 22912, NMW 16830. _Jutiapa_: Hacienda Mongoy, UMMZ 106725. _El Progreso_: El Progreso, CAS 67000; _El Rancho_, UMMZ 106724; _San Antonio_, CAS 66999. "Peten," USNM 6751(2), 6803. _Sacatepequez_: Dueñas, BMNH 64.1.26.17, 64.1.26.126-127. _Zacapa_: Pepesca, AMNH 72555-56. HONDURAS: _no specific locality_, AMNH 58364. _Cortes_: San Pedro Sula, CNHM 5295-96. _Francisco Morazan: El Zamarano_, AMNH 70189; Tegucigalpa, MCZ 49785, 49787-88, 49791, 49793, 49795. MÉXICO: _Chiapas_: _Soconusco_, UIMNH 33646-47; Tonalá, USNM 109707. =Conophis vittatus= Peters _Tomodon lineatum_ (in part), Duméril, Bibron and Duméril, Érpétologie Genérale, 7(pt. 2):936-938, February 25, 1854. _Conophis vittatus_ Peters, Monatsb. Akad. Wiss. Berlin, pp. 519-520, pl., fig. 3, October, 1860; Cope, Proc. Amer. Philos. Soc., 11:162, 1870; Bocourt _in_ Duméril, Bocourt and Mocquard, Mission Scientifique au Mexique et dans l'Amerique Centrale, 2:644-646, pl. 38, fig. 7, 1886; Günther, Biologia Centrali-Americana, p. 165, March, 1895; Boulenger, Catalogue of the Snakes in the British Museum (Natural History), 3:123-124, 1896; Cope, Amer. Nat., 30:1024, 1896; Ann. Rept. U. S. Natl. Mus. for 1898, pp. 1094-1095, 1232, 1900; Gadow, Proc. Zool. Soc. London, 2:225, 1905; Amaral, Mem. Inst. Butantan, 4:211, 1929; Gadow, Jorullo, p. 55, 1930; Smith, Zool. Ser. Field Mus. Nat. Hist., 24:31-32, January 30, 1939; Taylor and Smith, Univ. Kansas Sci. Bull., 25:252-253, pl. 23, July 10, 1939; Stuart, Contr. Lab. Vert. Biol. Univ. Michigan, 65:23, March, 1954; Alvarez del Toro, Reptiles de Chiapas, pp. 153-154, 1960. _Conophis lineatus_ Cope, Proc. Acad. Nat. Sci. Philadelphia, 16(3):167, 1864 [_nec_ Duméril, Bibron and Duméril, Érpétologie Genérale, 7(pt. 2):936-938, atlas, pl. 73, February 25, 1854; specimen from Colima]; Sumichrast, Arch. Sci. Nat., p. 246, 1873. _Tomodon vittatus_, Bocourt, Journ. de Zool., p. 407, 1876. _Conophis sumichrasti sumichrasti_ Cope, Journ. Acad. Nat. Sci. Philadelphia, ser. 2, 8:137, 1876 (Types.--United States National Museum, nos. 29123, 30258; type locality.--Tehuantepec, México); Bull. U. S. Natl. Mus., 32:77, 1887; Smith and Taylor, Univ. Kansas Sci. Bull., 33(pt. 2):334, March 20, 1950; Maldonado-Koerdell, Inst. Mexicanos Recursos Nat. Renov., p. 124, 1953.