- A genus of marine annelids, thought to be an old or ancestral kind. It is remarkable for its efficiency of construction and need of parapodia. It's the variety of the order Archiannelida, or Gymnotoma.
- A genus of marine annelids, believed to be an old or ancestral kind. It really is remarkable for the convenience of construction and want of parapodia. This is the types of the order Archiannelida, or Gymnotoma. See loeven's larva.
- The typical genus associated with the family Polygordiidæ, described the annelids as types of a group, Archiannelida. P. purpureus and P. luteus are a couple of species, the former hermaphroditic, the second diœcious.
Variant for "polygordius"
- loeven's larva
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