Genus
Lophonema Ulrich, 1916
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Gastropoda |
| Subclass | Eogastropoda |
| Order | Euomphalina |
| Superfamily | Euomphaloidea |
| Family | Helicotomidae |
| Genus | Boucotspira |
| Helicotoma | |
| Lophonema | |
| Palaeomphalus |