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

Boiruna maculata (from Abalos & Baez 1963)
Boiruna maculata (from Carreira & al. 2005)
Boiruna maculata (from Scott & al. 2006)
Boiruna maculata (from Boulenger 1896)
Boiruna maculata (from Boulenger 1896)
Boiruna sertaneja (from Pereira-Filho & al. 2017)