#mollusk_genus__molluskgenu  a genus of mollusks
  subtype:  genus_Haliotis  genus_Lambis  genus_Strombus  genus_Helix  genus_Limax  genus_Nerita  genus_Neritina  genus_Littorina  genus_Patella  genus_Fissurella  genus_Ancylus  genus_Aplysia  genus_Hermissenda  genus_Haminoea  genus_Physa  genus_Cypraea  genus_Chiton  genus_Mya  genus_Venus  genus_Mercenaria  genus_Ensis  genus_Tridacna  genus_Cardium  genus_Ostrea  genus_Crassostrea  genus_Pinctada  genus_Anomia  genus_Placuna  genus_Arca  genus_Mytilus  genus_Unio  genus_Anodonta  genus_Dreissena  genus_Pecten  genus_Teredo  genus_Bankia  genus_Pholas  genus_Nautilus  genus_Octopus  genus_Argonauta  genus_Loligo  genus_Ommastrephes  genus_Sepia  genus_Spirula
  member of:  kingdom_Animalia
  supertype:  genus__genu  (biology) taxonomic group containing one or more species
     supertype:  taxonomic_group__taxonomicgroup__taxon  animal or plant group having natural relations
        supertype:  biological_group  a group of plants or animals
           supertype:  group__grouping  any number of entities (members) considered as a unit
              supertype:  collection  something gathering separated things (entities/situations)
                 supertype:  divisible_entity__divisibleentity  many classifications under this category are application-dependant
                    supertype:  entity  something that can be "involved" in a situation
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                    supertype:  divisible_thing__divisiblething
                       supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

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