Mollusca

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Mollusca
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Common Examples

• Clams

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Common Examples

• Oysters

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Common Examples

• Squid

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Common Examples

• Squid

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Common Examples

• Octopus

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Common Examples

• Nudibranch

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Common Examples

• Nudibranch

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Common Examples

• Snails

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Common Examples

• Slugs

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Common Examples

• Cuttlefish

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Common Examples

• Chitons

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Common Examples

• Chitons

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Common Examples

• Scallops

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Common Examples

• Mussels

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Characteristics

• Amphineura - Chitons
• 8 plates on dorsal surface
• One broad foot that attaches to rocks
• Uses a Radula (rough tongue) to eat

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Characteristics

• Gastropoda - Snails, Slugs, Nudibranchs, and
  Limpets
• One broad foot for creeping
• Uses a Radula (rough tongue) to eat
• 1 Shell (except nudibranchs and slugs)
• Definite Head, Eyes and Tentacles

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Characteristics

• Pelecypoda - Clams, Mussels, Oysters and Scallops
• 2 Shells (fairly equal in size)
• Hatchet-shaped foot
• Filter feeders (food and oxygen)

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Characteristics

• Cephlapoda - Squid, Octopus, Nautilus, and
  Cuttlefish
• Internal pen-like shell
• Well developed head and brain
• Human-like eyes
• Uses a beak, a radula and tentacles to eat