Gelliodes fibrosa (Wilson, 1925)
Gray encrusting sponge
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Family:  Niphatidae ()
Max. size: 
Environment:  sessile; marine
Distribution:  Central Pacific: Philippines. Introduced in Hawaiian Islands, Guam and Palmyra Atoll.
Diagnosis:  Thickly encrusting mat with anastomosing and meandering branches with some branches erect. Exterior color is blue-gray and interior is grayish beige. Spongy, fibrous, elastic and tough, surface is smooth to irregularly conulose with protruding tufts of fibers. Megascleres: curved oxeas 160 to 180 micrometers, microscleres: small sigmas 15 micrometers.
Biology:  Mainly restricted to shallow-water fouling communities of the major harbors or associated disturbed habitats and also on patch reefs, encrusting the shaded underside of plate corals (Ref. 3248).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:   
 

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