Class Polychaeta
(paddle-footed annelids and polychaetes)

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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