Children (20 direct children, 20 direct and indirect children):
Histocidaris longicollis
Histocidaris sharreri
Histocidaris purpurata
Histocidaris magnifica
Histocidaris formosa
Histocidaris nuttingi
Histocidaris cobosi
Histocidaris carinata
Histocidaris crassispina
Histocidaris variabilis
Histocidaris misakiensis
Histocidaris australiae
Histocidaris elegans
Histocidaris recurvata
Histocidaris acutispina
Histocidaris denticulata
Histocidaris geneffensis
Histocidaris mckayi
Histocidaris oranensis
Histocidaris sicula