The Rose Anemone (Urticina piscivora) photographed underwater in Barkley Sound, British Columbia, Canada.
This Pacific blood star Henricia leviuscula stands out from purple coraline aglae. Aspect ratio = 1:1.
Crab (of the genus Cancer) megalops larvae catching a free ride on the hydrozoan jellyfish Aequorea victoria. It was photographed while scuba diving in Barkley Sound, British Columbia, Canada.