Divers exploring an SS Tasman shipwreck off the coast of Tasmania were in for a surprise when they discovered an extremely rare pink handfish and captured images of the nearly extinct creature This.

The handfish (Brachiopsilus dianthus) hides among coral-covered debris, with its pectoral fins extended like a hand. There have been very few encounters with the pink handfish since the species was discovered in 1947.

Discovery of extremely rare pink hand fish in the wreck of the SS Tasman Picture 1
Close-up of the red hand fish on the wreck of the SS Tasman. (Photo: James Parkinson).

Divers noticed the fish during a dive exploring the Dutch steamer SS Tasman. Brad Turner, a member of the diving team that found the fish, said: 'We went there to explore the wreck, but the handfish caught everyone's attention.'

The remains of the SS Tasman - a steamship built in 1873 and used to transport goods and passengers - lie near the granite island of Hippolyte Rocks, 10km from mainland Tasmania. While trying to pass through a narrow passage, the ship sank when it hit an unexplored reef. 29 passengers and crew members escaped but left 75 cows on board.

The dive is part of a series of expeditions planned to commemorate the 140th anniversary of the ship's sinking.

At a depth of 70m, divers have 25 minutes to explore before returning to the surface. When the dive ended, they were horrified to discover a second pink handfish, just 10m away from the first fish.

B. dianthus is one of four endangered handfish species found in Tasmania. Unlike other fish, handfish do not have a swim bladder to control buoyancy underwater, so they stay close to the rocky sea bottom and can only swim short distances.