Anemone ID? Another update. Anemone Relocated.

[Delphinus]

Sorry. Think of them as wart like structures that the anemone can use to adhere to substrate. From the link I provided: "Most host actinians have, in the upper part, longitudinal rows of small warts (verrucae; singular is verruca) to which particles of gravel may adhere; commonly these are pigmented differently from the rest of the column."

Here is a picture showing the verrucae of one of my carpets (Stichodactyla gigantea):


Offhand I do not have pictures of the verrucae of H. magnifica versus E. quadricolor, sorry, although a quick google search should yield plenty of results.