Showing association of vermetids with various substrata and epibionts A Thylacodes sp. attached with Porites lutea showing mucus net and pedal tentacle B a brightly coloured Thylacodes sp. with active pedal tentacles at positions 11 o’clock and 4 o’clock C Ceraesignum sp. embedded in an algae covered rubble D erect, uncovered Petaloconchus sp. tube attached to rubble.