Class Polychaeta
(paddle-footed annelids and polychaetes)

Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World, Princeton University Press, copyright 2003. Used by permission.

• Parent taxa
  
  
  
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  Phylum Annelida (segmented worms)
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  Class Polychaeta (paddle-footed annelids and polychaetes)
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  Subclass Palpata
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  Order Aciculata
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  Order Canalipalpata
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  Subclass Scolecida
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  Family Aeolosomatidae
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  Family Arenicolidae
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  Family Capitellidae
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  Family Cossuridae
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  Family Maldanidae
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  Family Opheliidae
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  Family Orbiniidae
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  Family Paraonidae
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  Family Parergodrilidae
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  Family Potamodrilidae
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  Family Psammodrilidae
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  Family Questidae
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  Family Scalibregmatidae