Pseudoxyrhophiinae is a subfamily of colubrid snakes. It contains about 20 genera: * Alluaudina * Bibilava (recently split from Liopholidophis) * Brygophis * Compsophis * Ditypophis * Dromicodryas * Exallodontophis * Geodipsas * Heteroliodon * Ithycyphus * Langaha * Leioheterodon * Liophidium * Liopholidophis * Lycodryas * Madagascarophis * Micropisthodon * Pararhadinaea * Pseudoxyrhopus * Stenophis