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	Kingdom Animale | Phylum Arthropoda | Subphylum Chelicerata | Class Pycnogonida

Sea Spider These are not true spiders. They are slow moving animals with small bodies, and feed by sucking out the tissues of bryozoans or hydroids. They are especially common among algae like Sargassum, Caulerpa and other branching forms. (Width 0.3 to 0.5cm).

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