| The red coralline algae belong to the phylum Rhodophyta. The red coralline algae can incorporate calcium carbonate into their cell walls, giving their body a rigid, segmented appearance and texture. Most of the red algae have the ability to carry on photosynthesis at much greater depths than other types of algae. Some species of red algae from the Bahamas grow at depths of nearly 270 m (880 ft). |