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

Regina grahamii (from Cope 1900)
Regina grahamii (from Powell & al. 2019)
Regina septemvittata (from Davis & al. 2021)
Regina septemvittata (from Guyer & al. 2018)
Regina septemvittata (from Palmer & Braswell 1995)
Regina septemvittata (from Schmidt & Davis 1941)