Doug Perrine / Giant squirrelfish (Sargocentron spiniferum) at cleaning station in the cockpit of wreck of Panorama Air Tour Beech H18S that crashed in 1983 after take-off from Keahole airport, Kona, Hawaii.

Jeff Rotman / Spotfin Squirrelfish (Neoniphon sammara) caught in Bedouin gill net, Egypt, Red Sea

Peter Scoones / Long jawed squirrelfish {Sargocentron spiniferum} in wreck, Red Sea

Michael Pitts / Shoal of Hawaiian squirrelfish {Sargocentron xantherythrum}, Midway Islands, Pacific

Doug Perrine / Giant brain coral provides shelter for Grunts and Squirrelfish, Florida Keys, USA.

Michael Pitts / Longspine squirrelfish {Holocentrus rufus} on the wreck of the SS Rhone, British Virgin Is, Caribbean.

Flip Nicklin / Squirrelfish (Holocentrus sp) schooling at reef, Cocos Island, Costa Rica

Flip Nicklin / Squirrelfish (Holocentrus sp) schooling at reef, Cocos Island, Costa Rica

Alex Mustard / Reef manta (Mobula alfredi) visiting a cleaning station on a coral reef with a school of Onespot snappers (Lutjanus monostigma), Oriental sweetlips (Plectorhinchus vittatus) and Sabre squirrelfish (Sa...

John Shaw / Yellow-billed cardinal (Paroaria capitata). Pantanal, Brazil, September.

Nick Hawkins / Squirrelfish (Holocentrus sp) shoal amongst rocks. Near Cocos Island National Park, Costa Rica.

David Fleetham / Trumpetfish (Aulostomus chinensis) and Longjaw squirrelfish (Sargocentron spiniferum) with school of Bigscale soldierfish (Myripristis berndti) behind. Coral reef, Maui, Hawaii.