Rocky Mountains. (With 108 drawings by Edmond Malnate). New York and London: D. Appleton-Century. Frontispiece map + viii + 163 pp. + Plates A-C, 1–32. (Leptodeira torquata ochrorhyncha, pp. 128–129 + Plate 25, Figure 74). Günther A. 1860. Description of Leptodeira torquata, a new Snake from Central America. Ann. Mag. Nat. Hist., Third Series 5: 168–170 + Plate X., Figure A. Schmidt KP, Davis DD. 1941. Field Book of Snakes of the United States and Canada. New York: G.P. Putnam's Sons. 365 pp. (Hypsiglena ochrorhyncha, pp. 259–260, Figure 84 + Plate 29, center, on p. 349). Smith HM, Brodie ED Jr. 1982. Reptiles of North America: A Guide to Field Identification. New York: Golden Press. 240 pp. . (Hypsiglena torquata, pp. 176–177). Stebbins, RC. 2003. A Field Guide to Western Reptiles and Amphibians, Third Edition. The Peterson Field Guide Series. Boston and New York: Houghton Mifflin. xiii + 533 pp. . (Hypsiglena torquata, pp. 403–404 + Plate 46 + Map 180). Wright AH, Wright AA. 1957. Handbook of Snakes of the United States and Canada. Ithaca and London: Comstock. 1,105 pp. (in 2 volumes). (Genus Hypsiglena, pp. 314–317, Map 30; species Hypsiglena torquata, pp. 318–330, Figures 97–101). External links Colubrids Reptiles described in 1860 Taxa named by Albert Günther Reptiles of the United States