Stone coral
Fig. 24: Just a stone coral in a bed of horn corals in shallow water. — Dunia Kecil, Wajil Batan, Rajat Empat, Indonesia, Nikon Coolpix 5400, Fischaugen-Vorsatz, March 15, 2005 Nikon E5400; Δt=1/91 s; f=24 mm; f/5.8; ISO 50; 15 March 2005 15:49:08