Scaphiodontophis is a genus of snakes in the family Colubridae. www.reptile-database.org. The genus is native to Mexico, Central America, and Colombia.
Species The following two species are recognized as being valid. Scaphiodontophis annulatus (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854) – Guatemala neckband snake Scaphiodontophis venustissimus (Günther, 1893) – common neckband snake
References
Further reading Taylor EH, Smith HM (1943). "A Review of the American Sibynophine Snakes, with the Proposal of a New Genus". University of Kansas Science Bulletin 29: 301–337. (Scaphiodontophis, new genus, pp. 302–303).