Head drawings: genus Pseudoeryx(Serpentes: Colubridae) - compiled by Van Wallach Home

Pseudoeryx plicatilis (from Amaral 1976)
Pseudoeryx plicatilis (from Chippaux 1986)
Pseudoeryx plicatilis (from Lancini & Kornacker 1989)
Pseudoeryx plicatilis (from PĂ©rez-Santos & Moreno 1988)
Pseudoeryx relictualis (from Schargel & al. 2007)
Pseudoeryx relictualis (from Schargel & al. 2007)