Pollicipes polymerus Sowerby, 1833
Phylum Arthropoda, Subph. Crustacea, Class Thecostraca, Subcl. Cirripedia, Order Thoracica, Family Scalpellidae
Gooseneck barnacle; to 80 mm tall; muscular fleshy base attaches animal to hard substrate.
Abundant; mid-intertidal zone on exposed outer coast; often associated with beds of the mussel, Mytilus.
Geo Range: British Columbia to northern Baja
Synonyms: Mitella polymerus
Similar species: Other gooseneck barnacles such as Lepas are oceanic and attach to floating logs, net floats, & other objects that sometimes wash ashore.
Image: Mytilus californianus around barnacles; mussel form of Lottia pelta (arrow).