Type specimens being collected (A–B) and prior to collection showing attachment to authigenic carbonate (C). Also seen are vesicomyid shells and a siboglinid tube worm tube. Lab image of holotype, scale is 10 cm (D). Lab image of holotype branch axis and filaments (E). Light microscopy image of showing filaments embedded in axis (F). Lab image of paratype, scale is 10 cm (G).