Phylum Mollusca (mollusks)Class Bivalvia (bivalves)
Subclass PteriomorphiaOrder MytiloidaFamily MytilidaeGenus Mytilus
Species Mytilus edulis (blue mussel)5 more clades27 more clades4 more clades5 more cladesClass Cephalopoda (cephalopods)Subclass ColeoideaDivision NeocoleoideaSuperorder OctopodiformesOrder Octopoda (octopuses)Suborder IncirrinaFamily OctopodidaeSubfamily OctopodinaeGenus AmphioctopusSpecies Amphioctopus marginatus (veined octopus)15 more cladesGenus OctopusSpecies Octopus vulgaris (common octopus)101 more clades13 more clades5 more clades4 more cladesOne more cladeOne more cladeOne more cladeOne more cladeSubclass NautiloideaClade PalcephalopodaOrder NautilidaSuborder Nautilina (nautiluses)Family NautilidaeGenus NautilusSpecies Nautilus pompilius (chambered nautilus)Subspecies Nautilus pompilius pompiliusOne more clade3 more cladesOne more cladeClass GastropodaClade HeterobranchiaClade PulmonataClade EupulmonataClade StylommatophoraClade SigmurethraSuperfamily HelicoideaFamily HelicidaeSubfamily HelicinaeTribe HeliciniGenus HelixSubgenus HelixSpecies Helix pomatia (burgundy snail)3 more clades3 more clades16 more clades2 more cladesOne more clade18 more clades12 more clades2 more cladesOne more cladeOne more clade2 more clades5 more clades5 more clades