Western cup demosponge

Cymbastela vespertina Hooper & Bergquist, 1992 (OTU QM1055) [Demospongiae, Halichondrida, Axinellidae] Thin-walled, lamellate cup shaped sponges, with larger specimens consisting of 2-4 concentric cups inside each other, dark maroon brown to greyish purple alive, always evenly pigmented, dark brown or dark grey preserved, small pores scattered over surface of lamellae, firm, slightly compressible texture, surface optically smooth, microscopically microconulose. Nth and NW Australia.

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