The big pocket gopher (Heterogeomys lanius) is a species of rodent in the family Geomyidae. It is endemic to Veracruz state in eastern Mexico. It has only been found on the southeastern slopes of Pico de Orizaba, at elevations of 1300m (4,300feet).
Some authors classify it in the genus Orthogeomys, but recent research has allowed this and its related species to be classified in the genus Heterogeomys.[1]