- Apairoffeatheryappendages.Someoftheappendagesaresharplybent,asifatajoint.Oneofthefleshypairedappendagesofpolycheteannelidsthatfunctioninlocomotionandbreathing.Theyhavesegmentedwithtwoorthreedistinctparts,andjointedappendagesonthesegments.Raretreasure...
- 20920