Phylum Mollusca

Phylum Mollusca

1. "soft bodied"

2. Radula!!!

3. Monoplacophora

   • single cone
   • Neopalina galatheae

4. Scaphophora

   • tusk shells
   • tubular shell

5. Cephalopoda

   • Coleoiedea
     • octopi
     • squid
     • cuttlefish
   • Nautilodea
     • coiled external shell
     • Nautilus

6. Aculiferan

   • Aplacophora
     • Chaetoderma
       • worm-like burrower
     • Nemeniomorpha
       • creeping foot-like ridge
   • spicules in outer layer

7. Polyplacohpora

   • 8 interlocking hinged plates
   • Chitons

8. Bivalvia

   • calcareous valves

9. Gastropoda

   • Prosobranchiata
     • gills at front
   • Opisthobranchiata
     • gills at back
   • Pulmonata
     • gills lost

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