Phylum Mollusca - PowerPoint PPT Presentation

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Phylum Mollusca

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Phylum Mollusca. Mussels / Clams / oysters. Snails / slugs. Octopus / squid / nautilus ... Number of rings reveals age. Adductor muscles. Mother of pearl. used ... – PowerPoint PPT presentation

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Title: Phylum Mollusca


1
Phylum Mollusca
  • Mussels / Clams / oysters
  • Snails / slugs
  • Octopus / squid / nautilus

2
Class Bivalvia
  • 2 valves (2 shells)
  • Umbo
  • Number of rings reveals age
  • Adductor muscles
  • Mother of pearl
  • used to make buttons / jewerly

3
Class Bivalvia
  • Clams
  • Oysters
  • Mussels
  • barnacles

4
LOCOMOTION
  • Foot -- digging
  • Swimming
  • Incurrent / excurrent siphons

5
Class Gastropoda (Univalvia)
  • Gastrostomach poda foot
  • Travels on stomach
  • Snails/ slug
  • Single valve
  • Left handed / right handed
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