| system |
Vitae - living organisms
|
| domain |
Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells
|
| superregnum |
Unikonta
|
| system |
Opisthokonta Cavalier-Smith, 1987
|
| kingdom |
Animalia Linnaeus, 1758 - animals
|
| subregnum |
Eumetazoa Butschli, 1910
|
| divisio |
Bilateria Hatschek, 1888 - bilaterians
|
| subdivisio |
Protostomia Grobben, 1908 - protostomes
|
| phylum |
Mollusca Cuvier, 1795 - mollusks
|
| subphylum |
Conchifera Gegenbaur, 1878 - shell-bearers
|
| superclassis |
Cyrtosoma
|
| class |
Gastropoda Cuvier, 1795 - gastropods
|
| subclass |
Heterobranchia J. E. Gray, 1840
|
| order |
Opistobranchia Milne-Edwards, 1848 - opisthobranchs
|
| suborder |
Cephalaspidea P. Fischer, 1883
|
| superfamily |
Bulloidea Lamarck, 1801
|
| family |
Retusidae Thiele, 1926
|
| genus |
Retusa Brown, 1827 - Canoe-shells
|
| species |
Retusa obtusa (Montagu, 1803)
|
species