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

Liodytes alleni (from Cope 1900)
Liodytes alleni (from Powell & al. 2019)
Liodytes alleni (from Schmidt & Davis 1941)
Liodytes alleni (from Allen 1950)
Liodytes alleni (from Allen 1950)
Liodytes pygaea (from Cope 1900)
Liodytes pygaea (from Palmer & Braswell 1995)
Liodytes pygaea (from Powell & al. 2019)
Liodytes pygaea (from Schmidt & Davis 1941)
Liodytes rigida (from Guyer & al. 2018)
Liodytes rigida (from Holbrook 1842)
Liodytes rigida (from Palmer & Braswell 1995)
Liodytes rigida (from Schmidt & Davis 1941)
Liodytes rigida (from Cope 1900)
Liodytes rigida (from Cope 1900)