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	Kingdom Plantae | Division Rhodophyta

Red Algae Other than chlorophyll, red algae contain red pigments (e.g. phycoerythrin) and orange pigments (e.g. carotene). Red Encrusting Algae Encrusting or coralline algae are common on rocks and other rough surfaces. They absorb calcium salts from sea water, forming very hard pink to red encrustations.

Introduction Shore environment

From A Guide to Seashore Life by Dr Leo W H Tan and Peter K L Ng Published by the Singapore Science Centre and sponsored by BP @Raffles Museum of Biodiversity Research and Singapore Science Centre