Children (16 direct children, 18 direct and indirect children):
Gonionotophis laurenti
Gonionotophis brussauxi
(tree size 2)
Gonionotophis crossi
Gonionotophis egbensis
Gonionotophis gabouensis
Gabou file snake
Gonionotophis grantii
Savanna lesser file snake
Gonionotophis guirali
Gonionotophis poensis
Gonionotophis klingi
Matschie's african ground snake
Gonionotophis savorgnani
Gonionotophis nyassae
Black file snake
Gonionotophis unicolor
Gonionotophis stenophthalmus
Gonionotophis vernayi
Gonionotophis chanleri
Gonionotophis capensis
Cape file snake