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Haplodrili, or Archiannelida, is an order of primitive polychaete worms. Zoologist Ray Lankester gave it the name haplodrili, while zoologist Berthold Hatschek later named it Archiannelida. Wikipedia
Scientific name: Haplodrili
Class: Polychaeta
Order: Haplodrili; Lankester, unknown date
Phylum: Annelida