Biology/Natural History: The tentacles are just in front of the brain and can be retracted. This animal is negatively phototactic. The margins of the body wrinkle as the animal moves (see photo above). Will eat mussel tissue in the laboratory. In Washington, gravid individuals can be found in March. 150-160 golden yellow eggs are laid individually in capsules, in a tight-packed monolayer or bilayer on rocks.
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