Key Identification Features
- The worm has a two-layered crown of retractable feeding tentacles, with one layer forming a distinct spiral.
- While its body stays hidden inside the tube, the species can be identified by its prominent, fan-shaped plume of feathery yellow tentacles.
- The crown's color is variable and often shows distinct banding, ranging from white and tan to reddish-brown.
For instant identification in the field, use the iNature app — AI-powered, works offline.