Paul Williams / Ochre starfish (Pisaster ochraceus) Goose barnacles (Pollicipes polymerus) California mussel (Mytilus californianus) and Giant green anenome (Anthopleura xanthogrammica) in rock pool, Vancouver Island...

Paul Williams / Ochre starfish (Pisaster ochraceus), Goose barnacles (Pollicipes polymerus) and California mussel (Mytilus californianus) in rock pool, Vancouver Island, British Columbia, Canada, July.

Paul Williams / Goose barnacles (Pollicipes polymerus) and California mussel (Mytilus californianus), Vancouver Island, British Columbia, Canada, June.

Paul Williams / Goose barnacles (Pollicipes polymerus) and California mussel (Mytilus californianus), Vancouver Island, British Columbia, Canada, June.

David Hall / Subtidal organisms found in the extreme tidal current that occur at Nakwakto Rapids, including Gooseneck barnacles (Pollicipes polymerus), mussels, kelp, red algae, coralline algae and calcareus tubew...

David Hall / Gooseneck barnacles (Pollicipes polymerus) found only at Nakwakto Rapids, which has one of the strongest tidal currents in the world. Also seen are Vancouver featherduster worms (Eudistylia vancouveri...

David Hall / Gooseneck barnacles (Pollicipes Polymerus) amongst kelp, Nakwakto Rapids, Slingsby Channel, British Columbia, Canada. September.

David Hall / Goose neck barnacles (Pollicipes polymerus), Nakwakto Rapids, Slingsby Channel, British Columbia, Canada. May. This variety with deep red color is only found in this location,