divepix - Brown Tube Sponge

Brown Tube Sponge

Aspect:	Generally, but not always, grows in the shape of Ibex horns, with excurrents protruding in-line from their upper edge.
Population:	Common.
Notable feature:	Usually brown or beige, but sometimes pink. Often inhabited by parazoanthids as shown in one of the close-up views herewith.
Environment:	Quiet and relatively shallow waters.
Behaviour:	-