Giant acorn barnacle (Balanus nubilus). Aspect Ratio = 3:4.
Sunflower Star, Pycnopodia helianthoides, is the largest seastar found from Alaska to Puget Sound. Aspect ratio = 3:4.
Red Sea Urchins (Strongylocentrotus franciscanus) clustered on a large boulder near Giant Plumose Anemones (Metridium farcimen) and a Giant California Sea Cucumber (Parastichopus californicus) in Barkley Sound, British Columbia. These urchins are harvested for thier uni (eggs).
