Children (15 direct children, 15 direct and indirect children):
Ethalia striolata
Umbonium striolata
Umbonium giganteum
Umbonium costatum
Umbonium elegans
Umbonium eloiseae
Umbonium moniliferum
Umbonium thomasi
Umbonium vestiarium
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Umbonium callosum
Umbonium conicum
Umbonium sagittatum
Umbonium suturale
Umbonium zelandica
Umbonium superbum
Umbonium zelandicum