Clathrina helveola
Introduction '''''Clathrina helveola''''' is a species of calcareous sponge in the family Clathrinidae from Australia, found in coastal waters off Queensland. It was first described by Gert Wörheide  and John Hooper in 1999.The species name, ''helveola'',  means "pale yellow" in Latin and refers to the species' colouration.
Description The cormus in the massive holotype is delicate, formed of large, irregular and loosely anastomosed tubes. In some parts of the cormus, a thin cortex can be seen. Cells with granules are present. The skeleton has no special organization. It comprisesequiangular and equiradiate triactines. Actines are conical and sharp, and slightly undulated at the tip.
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