is a specific kind of: genus.

is a broader term that covers: genus Haliotis, Haliotis | genus Lambis, Lambis | genus Strombus, Strombus | genus Helix, Helix | genus Limax, Limax | genus Nerita | genus Neritina | genus Littorina, Littorina | genus Patella, Patella | Fissurella, genus Fissurella | Ancylus, genus Ancylus | Aplysia, genus Aplysia, genus Tethus, Tethys | genus Hermissenda, Hermissenda | genus Haminoea, Haminoea | genus Physa | Cypraea, genus Cypraea | genus Chiton | genus Mya, Mya | genus Venus, Venus | genus Mercenaria, Mercenaria | Ensis, genus Ensis | genus Tridacna, Tridacna | Cardium, genus Cardium | genus Ostrea, Ostrea | Crassostrea, genus Crassostrea | genus Pinctada, Pinctada | Anomia, genus Anomia | genus Placuna, Placuna | Arca, genus Arca | genus Mytilus, Mytilus | genus Unio, Unio | Anodonta, genus Anodonta | Dreissena, genus Dreissena | genus Pecten | genus Teredo | Bankia, genus Bankia | genus Pholas, Pholas | genus Nautilus | genus Octopus | Argonauta, genus Argonauta | genus Loligo | genus Ommastrephes | genus Sepia, Sepia | genus Spirula ... show more.

is a member of: animal kingdom, Animalia, kingdom Animalia.