Leather coral
Fig. 4: A mushroom leather coral — dive site Jamur, Wajil Batan Island, Raja Empat, Indonesia, Nikon Coolpix 5400, Subtronic Mini strobe, march 15, 2005 Nikon E5400; Δt=1/125 s; f=5.8 mm; f/7.1; ISO 50; 15 March 2005 00:39:37