Genus
Haplistion cylindricum Rigby et Dixon, 1979
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Porifera |
| Class | Demospongea |
| Order | Spirosclerophorida |
| Suborder | Rhizomorina |
| Family | Haplistiidae |
| Species | Haplistion |
| Genus | cylindricum |
| Species | minutum |
| toftanum |