They are most abundant in areas with moderate current with cobbles, boulders or bedrock.

It has a soft, cylindrical body, with red-brown to yellowish leathery skin.

The California sea cucumber is a scavenger that feeds on organic matter.

Spawning usually takes place in August, and each female can produce thousands of eggs.

After fertilization, a larva is formed which metamorphoses into a sea cucumber after a few weeks.