From Ircinia spinosula

De Rosa, S., Crispino, A., De Giulio, A., lodice, C., and Milone, A. (1995a) Sulfated polyprenyl-hydroquinones from the sponge Ircinia spinosula. J. Nat. Prod., 58,1450-1454. 

At the time of this writing neither monoterpenes nor triterpenes have been reported from sponge sources, apart from squalene which was found in Ircinia spinosula 47) and I. muscarum 48). 

Cimino, G., S. De Stefano, and L. Minale Polyprenyl derivatives from the sponge Ircinia spinosula. Tetrahedron 28, 1315 (1972). 

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