Children (7 direct children, 7 direct and indirect children):
Xenodermichthys nodulosus
Bluntsnout smooth-head
Cope's bluntsnout slickhead
Xenodermichthys dalgleishi
Xenodermichthys funebris
Xenodermichthys guentheri
Xenodermichthys socialis
Xenodermichthys squamilaterus