Children (33 direct children, 33 direct and indirect children):
Trigonostoma rugosum
Trigonostoma tenerum
Trigonostoma bullatum
Trigonostoma chui
Trigonostoma costiferum
Trigonostoma diamantinum
Trigonostoma elegantulum
Trigonostoma gofasi
Trigonostoma goniostoma
Trigonostoma iota
Trigonostoma kilburni
Trigonostoma lamberti
Trigonostoma laseroni
Trigonostoma milleri
Trigonostoma mozambicense
Trigonostoma nitidum
Trigonostoma pygmaea
Trigonostoma scalare
Trigonostoma scala
Trigonostoma thysthlon
Trigonostoma semidisjunctum
Trigonostoma tessella
Trigonostoma bicolor
Trigonostoma tryblium
Trigonostoma vinnulum
Trigonostoma antiquata
Trigonostoma teramachii
Trigonostoma obliquata
Trigonostoma antiquatum
Trigonostoma breve
Trigonostoma pygmaeum
Trigonostoma tuberculosum
Trigonostoma scalariformis