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Kerr, R.G.; Kelly-Borges, M. (1994). Biochemical and morphological heterogeneity in the Caribbean sponge Xestospongia muta (Petrosida: Petrosiidae). In: Van Soest R.W.M., van Kempen T.M.G., Braekman J.C. (eds) Sponges in Time and Space. Biology, Chemistry, Paleontology. Balkema, Rotterdam, pp 65-73.