Children (37 direct children, 40 direct and indirect children):
Hymenocephalus billsam
Hymenocephalus hachijoensis
Hymenocephalus nesaeae
Hymenocephalus aterrimus
Hymenocephalus longiceps
Hymenocephalus longibarbis
Hymenocephalus nascens
Hymenocephalus heterolepis
Hymenocephalus longipes
Hymenocephalus barbatulus
Hymenocephalus megalops
Hymenocephalus antraeus
Hymenocephalus neglectissimus
Hymenocephalus adelscotti
Hymenocephalus lethonemus
Hymenocephalus semipellucidus
Hymenocephalus tenuis
Hymenocephalus grimaldii
Hymenocephalus striatulus
Graceful grenadier
Hymenocephalus gracilis
Hymenocephalus striatissimus
(tree size 3)
Hymenocephalus papyraceus
Hymenocephalus italicus
Soft-headed rattail
Hymenocephalus aeger
Hymenocephalus kuronumai
Hymenocephalus fuscus
Hymenocephalus maculicaudus
Hymenocephalus yamasakiorum
Hymenocephalus sazonovi
Hymenocephalus iwamotoi
Hymenocephalus punt
Hymenocephalus torvus
Hymenocephalus
Hymenogadus
Hymenocephalus cavernosus
Hymenocephalus dispar
Hymenocephalus longifilis