Children (9 direct children, 9 direct and indirect children):
Stegocephalus ampulla
Stegocephalus cascadiensis
Stegocephalus casadiensis
Stegocephalus inflatus
Stegocephalus similis
Stegocephalus abyssicola
Stegocephalus kergueleni
Stegocephalus longicornis
Stegocephalus nipoma
Stegocephalus rostrata