Chaetopterus charlesdarwinii is a species of parchment worm, a marine polychaete in the family Chaetopteridae.
Chaetopterus charlesdarwinii is named in honor of Charles Darwin.
Description and biology Chaetopterus charlesdarwinii is characterized by nine anterior region chaetigers and a brown hand on the lateral of the ventral shield and rear side of the anterior region notopodia. It occurs in irregularly curved tubes attached to the underside of rocks.
Distribution Chaetopterus charlesdarwinii is endemic to the Galapagos Islands.
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