Non-front-fanged colubroid snakes: a current evidence-based analysis of medical significance. by Weinstein, SA, White, J, Keyler, D, Warrell, D

“…Non-front-fanged colubroid snakes (NFFC; formerly and artificially taxonomically assembled as "colubrids") comprise about 70% of extant snake species and include several taxa now known to cause lethal or life threatening envenoming in humans. …”