Note: Do not rely on this information. It is very old.
Camecran
Camecran, the collective name of five Brazilian tribes, who inhabit the forests between the provinces of Para and Goyaz. The several tribes are Chr-, Crore-, Ma-, Pio-, and Pore-Camecran. When Jose Pinto de Magalhaes founded the settlement of Alcantara, on the right bank of the Tocantins, in 1809, he contracted an alliance with the Ma-Camecrans, by whose aid all the others were reduced, and have since been for the most part mansos (civilised). They appear to be a branch of the great Guarani-Tupi family, although the language differs greatly from Guarani.