I've seen a few, fleetingly. I'm working on getting photos.
Meanwhile, here's a badly overworked young limpet.
|7 calcareous tubeworms on one poor limpet.|
The limpet is about 2/3 the width of the blade of eelgrass, itself only 4 mm wide, making the limpet under 3 mm across, and the tubeworms under 1 mm. each. The worms themselves are pink or red; the white spiral tubes, are made of calcium carbonate. If the light is right, the colour of the live worm shows through.
Each worm is capped by a round lid, or operculum, visible on the one at the top in this photo. It hides the worm in case of danger or exposure, and also serves as a brood chamber for the young. It flips back for the worm to extend its feeding tentacles.
As I watched the limpet, it moved along the eelgrass blade, eating algae, seemingly undisturbed by the load on its back, probably weighing more than the limpet itself.
More limpet photos tomorrow.