p. 237 + Plate 36 + Map 179). Conant R, Bridges W. 1939. What Snake Is That?: A Field Guide to the Snakes of the United States East of the 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. (Crotalus viridis, pp. 154–155 + Plate 32, Figure 91). Hubbs, Brian; O'Connor, Brendan. 2012. A Guide to the Rattlesnakes and other Venomous Serpents of the United States. Tempe, Arizona: Tricolor Books. 129 pp. . (Crotalus viridis nuntius, pp. 36–37, 111; C. v. viridis, pp. 38–39). Rafinesque CS. 1818. "Further Accounts of Discoveries in Natural History, in the Western States". American Monthly Magazine and Critical Review 4 (5): 39-42. ("N. Sp. Crotalinus viridis ", p. 41). Schmidt KP, Davis DD. 1941. Field Book of Snakes of the United States and Canada. New York: G.P. Putnam's Sons. 365 pp. (Crotalus viridis, pp. 308–311, Figure 102 (map) + Plate 34). Smith HM, Brodie ED Jr. 1982. Reptiles of North America: A Guide to Field Identification. New York: Golden Press. 240 pp. . (Crotalus viridis, pp. 204–205). External links Prairie Rattlesnake, Reptiles and Amphibians of Iowa viridis Reptiles of the United States Fauna of the Western United States Fauna of the Rocky Mountains Reptiles described in 1818 Taxa named by Constantine Samuel Rafinesque