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A Checklist of the Invertebrates

BiologyBase Checklist Index Invertebrate Checklist title page

Part  3: Metazoa 2

Mollusca and Annelida

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(Metazoa 2)
  • Phylum Mollusca
    • Class Aplacophora
      • Subclass Caudofoveata
      • Subclass Ventroplicida

    • Class Monoplacophora
    • Class Polyplacophora
      • Order Lepidopleurida
      • Order Ischnochitonida
      • Order Acanthochitonida

    • Class Gastropoda (the snails)
      • Subclass Prosobranchia
        • Order Archeogastropoda
        • Order Mesogastropoda
        • Order Neogastropoda

      • Subclass Opisthobranchia
        • Order Cephalaspidea
        • Order Runcinoidea
        • Order Thecosomata
        • Order Gymnosomata
        • Order Anaspidea
        • Order Notaspidea
        • Order Acochlidioidea
        • Order Sacoglossa
        • Order Nudibranchia
        • Order Entoconchida

      • Subclass Pulmonata
        • Order Archaeoplumonata
        • Order Systellommatophora
        • Order Bosommatophora
        • Order Stylommatophora


 
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    • Class Bivalvia (clams and other two-shelled molluscs)
      • Subclass Palaeotaxodonta
      • Subclass Cryptodonta
      • Subclass Pteriomorpha
        • Order Arcoida
        • Order Mytiloida
        • Order Pterioida

      • Subclass Palaeoheterodonta
        • Order Unionoida
        • Order Trigonioida

      • Subclass Heterodonta
        • Order Veneroida
        • Order Myoida
        • Order Hippuritoida

      • Subclass Anomalodesmata

    • Class Scaphopoda
    • Class Cephalopoda (octopuses, squid and nautilus)
      • Subclass Nautiloidea
      • Subclass Ammonoidea
      • Subclass Coleoidea
        • Order Sepioidea
        • Order Teuthoidea
        • Order Vampyromorpha
        • Order Octopoda
 
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  • Phylum Annelida (segmented worms)
    • Class Polychaeta
      • Order Orvinnida
      • Order Ctenodrilida
      • Order Psammodrilida
      • Order Cossurida
      • Order Spionida
      • Order Capitellida
      • Order Opheliida
      • Order Phylodocida
      • Order Amphinomida
      • Order Spintherida
      • Order Eunicida
      • Order Sternaspida
      • Order Oweniida
      • Order Fauveliopsida
      • Order Terebellida
      • Order Sabellida
      • Order Archiannelida
      • Order Myzostomida

    • Class Clitellata
      • Subclass Oligochaeta
        • Order Lumbriculida
        • Order Moniligastrida
        • Order Haplotaxida
 
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  • Aeolosomatids (incerta sedus)
    • Subclass Branchiobdellida
    • Subclass Acanthobdellida
    • Subclass Hirudinea
      • Order Rhynchobdellida
      • Order Gnathobdellida
      • Order Pharyngobdellida
    
     
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Original content copyright 1995-2009 Robert B. Hole, Jr. All Rights Reserved