Classification
Biota [regio]Animalia [regnum]
Mollusca [phylum]
Gastropoda [classis]
Neogastropoda [ordo]
Cancellariidae [familia]
Trigonostoma [genus]
Genus Trigonostoma contains the following taxa:
Trigonostoma apertum (Beyrich,1856) [species]
Trigonostoma geslini [species]