The Classes of Phylum Mollusca
| Chaetodermomorpha | chaetodermorphs |
| Neomeniomorpha | neomeniomorphs |
| Polyplacophora | chitons |
| Monoplacophora | monoplacophorans |
| Gastropoda | slugs, snails, limpets and nudibranchs |
| Bivalvia | bivalve molluscs |
| Scaphopoda | tusk shells |
| Cephalopoda | squids, cuttlefish and octopuses |