Jiri Lochman / Blue Lamington Spiny Cray (Euastacus sulcatus) , Lamington National Park, Gondwana Rainforest UNESCO World Hertiage Site,. Endemic of Lamington National Park

Jiri Lochman / Blue Lamington Spiny Cray (Euastacus sulcatus) , Lamington National Park, Gondwana Rainforest UNESCO World Hertiage Site, Queensland, Australia. Endemic of Lamington National Park

Thomas Marent / Lamington Spiny Crayfish (Euastacus sulcatus) in defensive posture, Lamington National Park, Australia

Juergen Freund / Blue Lamington spiny crayfish, Lamington NP, Queensland, Australia

Steven David Miller / Blue lamington spiny crayfish {Euastacus sulcatus} Lamington NP, Australia

Bruce Thomson / Jagara hairy crayfish (Euastacus jagara) at night, a very rare crayfish with highly restricted distribution, found in several rainforest streams, Goomburra State Forest, Queensland, Australia. Critica...

Bruce Thomson / Mount Lewis spiny crayfish (Euastacus fleckeri) in defensive posture with claw raised, at edge of mountain stream, Mount. Lewis, Wet Tropics World Heritage area, Queensland, Australia. Endangered.

Bruce Thomson / Mount Lewis spiny crayfish (Euastacus fleckeri) at edge of mountain stream, in defensive posture, Mount Lewis, Wet Tropics World Heritage area, Queensland, Australia.

Bruce Thomson / Lamington spiny crayfish (Euastacus sulcatus) standing in shallow stream in defensive posture, Cunningham's Gap, Queensland, Australia.

Bruce Thomson / Lamington spiny crayfish (Euastacus sulcatus) red form, close up of head and claws, rare crayfish that commonly forages away from water on the forest floor above 300m altitude, Lamington National Park...

Bruce Thomson / Lamington spiny crayfish (Euastacus sulcatus) red form, in shallow pool in rock, rare crayfish that commonly forages away from water on the forest floor above 300m altitude, Lamington National Park, Q...

Bruce Thomson / Lamington spiny crayfish (Euastacus sulcatus) blue form, portrait, rare crayfish that commonly forages away from water on the forest floor above 300m altitude, Lamington National Park, Queensland, Aus...