Orthogeomys grandis (Thomas, 1893) . Ann. Mag. Nat. Hist., ser. 6, 12: 270.
TYPE LOCALITY: Guatemala, Sacatepequez Prov., Duenas .
DISTRIBUTION: Honduras to Jalisco (Mexico).
COMMENT: Burt and Stirton, 1961, Mise. Publ. Mus. Zool. Univ. Mich., 117: 52, included pygacanthus in grandis; Russell, 1968, Univ. Kans. Publ. Mus. Nat. Hist., 16(6):477-579, considered pygacanthus a distinct species and is followed here.
ISIS NUMBER: 5301410003005002001.