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Giant Green Anemone

Anthopleura xanthogrammica

Giant Green Anemone

The giant green anemone is one of the most spectacular animals you can find in the tide pools along the Pacific coast. Giant green anemones live on the rocks of tide pools and in deep channels on exposed rocky shores. They can also can be found on concrete pilings in open bays and harbors. From Alaska to Panama, these anemones flourish in the intertidal and subtidal zones.

They are amazing to look at. These giant anemones have a green to dark brown column with the tentacles in its crown being a greenish, bluish, or white (never pink at the tips), with no bands or markings. Their tentacles are numerous, short, and conical. This anemone can grow to almost a foot (30 cm.) in height and over nine inches (25 cm.) in diameter.

The adults are often crowded together with their tentacles touching, yet the giant green anemone is not aggressive to its neighbors like its smaller relative, the Cloning Anemone.

These large anemones like to eat detached mussels, crabs, sea urchins and small fishes. Their predators include sea snails and sea spiders.



Last modified: May 19, 1997 by Marti
Comments, complaints, compliments -- marti@cse.ucsc.edu