[2] This anemone has a slender, elongated body and creates a tough, felted, leathery tube to line its burrow, using discharged cnidocytes stuck together with mucus and incorporating sand grains on the outer surface.

[3] Ceriantheopsis americana is native to the western Atlantic Ocean where it occurs between Maine and Cape Hatteras in the United States.

[4] Ceriantheopsis americana is plentiful in Narragansett Bay, Rhode Island but was overlooked for a long time, probably because of its habit of retreating into its burrow when disturbed.

[2] It seems likely that its apparent disappearance is due to it burrowing more deeply into the substrate in that period in order to avoid being eaten by scup (Stenotomus chrysops) when the schools of young fish move inshore.

When the fish depart again in the fall, the anemone reappears, at similar sizes and densities to its situation before.