Thamnophis Fitzinger, 1843
Thamnophis elegans arizonae Tanner & Lowe, 1989
Thamnophis elegans subsp. elegans Baird & Girard, 1853
Thamnophis elegans errans Smith, 1942
Thamnophis elegans hueyi (Van Denburgh & Slevin, 1923)
Thamnophis elegans vagrans (Baird & Girard, 1853)
Thamnophis elegans vascotanneri Tanner & Lowe, 1989
