the protostomate phyla
Post on 05-Jan-2016
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The Protostomate Phyla. Annelida Mollusca Arthropoda. Phylum Annelida. Segmented worms True body cavity Paired Protonephric excretory organs Paired ganglia with interconnecting nerves Complete digestive tract. Classes of Annelida. Oligochaeta-few bristles earthworms - PowerPoint PPT Presentation
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The Protostomate Phyla
Annelida
Mollusca
Arthropoda
Phylum Annelida
• Segmented worms
• True body cavity
• Paired Protonephric excretory organs
• Paired ganglia with interconnecting nerves
• Complete digestive tract
Classes of Annelida
• Oligochaeta-few bristles– earthworms
• Polychaeta--many bristles, parapodia
• Hirudinea--leeches– Fusion of segments is called tagmatamization
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