Project Description

This sulphur sponge (Myxilla lacunosa) looked great as it contrasted the nearby purple (ochre) sea star.  During a boat dive near Campbell River, I was surprised by the abundance of these yellow encrusting sponges.  The sulphur sponge is delicate and prefers to live in high current areas.  This sponge has a rough surface texture and is often very thick, mounding up to at least 4.5 inches (11.4 cm) in height.  The sulphur sponge has a range from the Aleutian Islands to southern British Columbia.