Children (9 direct children, 14 direct and indirect children):
Volutharpa ampullacea
(tree size 1)
Volutharpa perryi
(tree size 2)
Volutharpa ainos
Volutharpa nipponkaiensis
(tree size 2)
Volutharpa deshayesiana
Volutharpa fischeriana
Volutharpa morchiana
Volutharpa paulucciana
Volutharpa salmiana