Cymbastela hooperi sp. nov. (Halichondrida: Axinellidae) from the Great Barrier Reef, Australia
1996
Soest, R.W.M. van (Amsterdam Univ. (Netherlands). Inst. for Systematics and Population Biology) | Desqueyroux-Faundez, R. | Wright, A.D. | Koenig, G.M.
Cymbastela hooperi sp. nov. is described from the Great Barrier Reef, Australia. This species belongs to the recently erected genus of stalked sponges, Cymbastela Hooper and Bergquit, 1992. The new species is the eighth member of this Australasian genus. Cymbastela hooperi sp. nov. is distinguished from other Cymbastela species, by its unique growth form (stalkless and flattened on substrate), its yellow to brown colour, its loose skeletal morphology, the often telescoped spicule shape and its chemistry. The new species produces a large number of structurally related diterpene isonitrile derivatives which demonstrate significant in vitro antimalarial activity. One of these compounds, di-isocyano-adociane, is also found in Amphimedon terpenensis Fromont, 1993. In addition both species present similar skeletal characters and spicule size. Considering this, a new combination is proposed: Cymbastela terpenensis (from Amphimedon).
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