Christmas Island Blue Crab

Tuerkayana celeste, known as the Christmas Island blue crab is a species of crab in the family Gecarcinidae. The species is only found near freshwater on Christmas Island. The species was first recorded in 1900 but only in 2012 was it found to be a separate species from the Tuerkayana hirtipes. The species was used for food in the 1950s but was subsequently protected in 1980.