1116-39959 - This red encrusting sponge (Clathria sp.) is the most common of this family found in Hawaii. Here it has covered the calcium carbonate-producing seaweed, Halimeda kanaloana, Hawaii, United States of America
1067-66 - Encrusting sponge, Clathria sp, detail. This genus takes the shape of whatever it begins growing on. Buyat Bay, North Sulawesi, Indonesia, Pacific Ocean.