The Lost Crab
The lost crab, Liocarcinus erravi, has not been seen for over a thousand years. Ancient manuscripts describe the crab as being of a pure yellow color, and living mostly in seacaves on the mediterranean. It was considered a delicacy in the times of the roman empire, to be fried in garlic oil and eaten whole.
Where the lost crab has gone to, or if it even still exists, nobody knows. Texts from around 1000 A.D. describe the puzzlement of the people of that time as to why the crab has disappeared. Cryptozoologist and gourmets from all over the world have searched for it, but so far to no avail.
Dr. Rudolf Krebs, from the European Institute for Lost Animals (EILA), mounted an expedition of more than a hundred people in 2013, and they spent over a year scouring the mediterranean coast looking for it, but to no avail. The lost crab, true to its name, could not be found.