Classification
Biota [regio]Animalia [regnum]
Mollusca [phylum]
Gastropoda [classis]
Neogastropoda [ordo]
Cancellariidae [familia]
Trigonostoma [genus]
Trigonostoma geslini [species]
Trigonostoma geslini contains the following taxa:
Trigonostoma geslini josephinae A.W. Janssen, 1984 [subspecies]