Pennant fish
Fig. 31: A swarm of pennant fish (Heniochus intermedius) — Fiabajet Barat, Fiabajet, Raja Empat, Indonesia, Nikon Coolpix 5400, March 16, 2005 Nikon E5400; Δt=1/125 s; f=8 mm; f/4.9; ISO 50; 16 March 2005 11:19:04