Molluscs
(Mollusca)
  Caudofoveata
(Caudofoveata)
Solenogastres
(Solenogastres)
Chitons
(Polyplacophora)
Neopilina
(Tryblidia)
Snails, Slugs
(Gastropoda)
Squids, Octopuses
(Cephalopoda)
Mussels, Clams
(Bivalvia)
Elephant Tusks
(Scaphopoda)