Cynomops planirostris

Cynomops planirostris (W. Peters, 1866) Summary of captures. Six females (CMARF 2111–2116) and four males (CMARF 2117–2120). External measurements and weights. The average and range of external measurements and weights for females: TLB: 90.00 (80.00–97.00), TL: 31.00 (27.00–36.00), LHL: 5.97 (5.40–7.00), EL: 13.17 (13.00–14.00), W: 9.50 (9.00–10.00). Males: TLB: 90.00 (89.00–92.00), TL: 30.00 (28.00–32.00), LHL: 5.88 (5.34–6.01), EL: 13.80 (13.08–14.05), W: 9.75 (9.00–10.00). Morphological description. Dorsal fur varies from chocolate brown to yellowish brown, contrasting with the paler ventral coloration. Skulls with a relatively low and short rostrum (Fig. 3). Lacrimal ridge conspicuous with the anterior face sloped smoothly to the forehead. Incisive foramina positioned closer to the accessory foramen and the three foramina (incisive and accessory) forming an equilateral triangle (seen with magnification from above). Basisphenoid pits are shallow. Values of some skull measurements for the females and males are shown in Table 1. * Variable incorrectly measured. Identification. Externally, the forearm length (<40 mm) and the ventral coloration paler than the dorsum in all specimens, in addition to cranial measurements and the arrangement of incisive and accessory foramina in the shape of an equilateral triangle, distinguish this species from its most similar congeners in the area (Cynomops greenhalli Goodwin, 1958, and C. milleri (Osgood, 1914), Moras et al. 2018; López Berrizbeitia and Díaz 2021).