Verongula resiwigi

This is a very large tube sponge, single or in groups. Its walls are very thick. Occasionally a solitary tube is short and thick, more barrel shaped than a tube.

Its colouration is a mix of yellow and green, and the surface pattern is a network of very pronounced ridges. The inside of the tube is usually yellow. The combination of size, surface pattern and colour makes this species distinctive.

Thick-walled barrels-jugs, single or in groups. Greenish to purplish in the outside,.. more