Children (25 direct children, 28 direct and indirect children):
Hippasteria derjungini
Hippasteria phrygiana
(tree size 1)
Hippasteria trojana
Hippasteria falklandica
Hippasteria imperialis
Hippasteria pedicellaris
Hippasteria colossa
Hippasteria heathi
Hippasteria aleutica
Hippasteria leiopelta
(tree size 2)
Hippasteria californica
Hippasteria spinosa
Hippasteria mammifera
Hippasteria tasmanica
Hippasteria nozawai
Hippasteria kurilensis
Hippasteria mcknighti
Hippasteria muscipula
Hippasteria tiburoni
Hippasteria lepidonotus
Hippasteria aculeata
Hippasteria armata
Hippasteria hyadesi
Hippasteria longimana
Hippasteria magellanica