Volume 1. The Herpetologists’ League, Washington, DC. [pour Loxocemidae, Pythonidae, Boidae, Bolyeriidae, Tropidophiidae Viperidae — sauf pour le maintien du genre Acrantophis, Sanzinia, Calabaria Lichanura et la reconnaissance de Epicrates maurus comme espèce valide]
Volume 1. The Herpetologists' League, Washington, DC (for Loxocemidae, Pythonidae, Boidae, Bolyeriidae, Tropidophiidae Viperidae — except for the retention of the genera Acrantophis, Sanzinia, Calabaria Lichanura and the recognition of Epicrates maurus as a valid species)