Golfball Sponge

Scientific name
Tethya australis
Common name
Golfball Sponge
Life on the Edge
Page 17
Where to find
Subtidal often under ledges
Golfball Sponges have a golfball shape and irregular projections that anchor the sponges to the reef surface.  It has a pink outer surface and yellow interior. Grows to 40 mm in diameter.

Growing beneath ledges and visible during very low tides, Golfball Sponges are some of the easier to identify sponges. They feed on plankton.