Charles Island Tortoise (Geochelone nigra galapagoensis), FMNH no. 13523. Field Museum of Natural History, Chicago. Conservation status: extinct. A subspecies of the Galapagos Giant Tortoise that is now extinct. This specimen was collected by K. P. Schmidt. S. N. Shurcliff's 1930 account described going 'down a dark narrow shaft with a long rope and came into a large underground cavern... we discovered several dozen shells of the extinct Charles Island tortoise... extinct for more than a hundred years... (they) must have fallen down the shaft and died in the cave for lack of food.'