Trigonostoma

Classification details:

Trigonostoma teramachii (Habe, 1961)	Gauze Heluo	Trigonostoma bicolor (Hinds, 1843)	Trigonostoma antiquata (Hinds, 1843)
Trigonostoma obliquata (Larmarck, 1822)	Trigonostoma paucicostata (Sowerby