Concentric-cup demosponge

Cymbastela concentrica (Lendenfeld, 1887) (OTU QM0514) [Demospongiae, Halichondrida, Axinellidae) Known from Queensland, New South Wales, Tasmania and a few records from New Caledonia, this olive-brown to olive-green cup sponge has a distinctive growth form of concentric cups growing inside each other. Its colouration is predominantly due to chlorophyll pigments from its resident (symbiotic cyanobacteria.

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