Stone Tube Worm, Eupolymnia nebulosa, Istria, Adriatic Sea, Croatia

sedentarians filterfeeder tentacle crown annelida polychaeta polychaets sabellida sabellidae canalipalpata marine invertebrates sessile tentaclulata closeup close up close up underwater marine wildlife marine fauna nature aquatic sea ocean underwaterphoto underwaterpicture underwaterphotography underwaterworld sealife adriatic sea mediterranean sea europe istria reef eupolymnia nebulosa istria adriatic sea croatia bristle wo fan wo feather duster wos tube wo segmented wo wos stone tube wo horizontal foat