A marine cnidarian species characterized by its robust, leathery textured body, found in cold to temperate coastal marine environments of the North Atlantic and North Pacific Oceans.
Rocky intertidal zones and subtidal areas, typically at depths between 0-50 meters, preferring areas with moderate water currents and rocky substrate
Important marine ecosystem component, providing habitat for small invertebrates, serving as prey for marine predators, and contributing to marine biodiversity