First record of Cynomops planirostris

Based on morphological and molecular data, we present the first record of Cynomops planirostris for the State of Maranhao. The specimen was collected in the Inhamum Municipal Environmental Protection Area in Maranhao, Brazil and characterized morphologically as an adult male with scrotal testicles, dorsal pelage reddish chestnut, with ventral pelage slightly lighter in color, forearm length 34.70-34.80mm dental formula i:1/1, c:1/1, pm:1/2, m:3/3 = 26. The sequence of the Cytochrome Oxidase I subunit (COI) molecular marker confirmed the morphological diagnosis of the specimen as C. planirostris with significant similarities. The combined analysis of both morphological and molecular confirmed the occurrence of C. planirostris in the Brazilian state of Maranhao, in the Cerrado biome and records extends the known geographic distribution of the species by 411.30 km.