Nyctinomops macrotis

Nyctinomops macrotis (Gray, 1839) Summary of captures. One female (CMARF 2225). External measurements and weight. TLB: 137.00, TL: 60.00, LHL: 7.00, EL: 27.00, W: 22.00. Morphological description. Dorsal and ventral pelage reddish brown. Ears large, fused at the midline of the forehead and nearly reaching the nostrils. Nostrils directed laterally. The upper lip is deeply furrowed by wrinkles (Fig. 14). The skull is large, with a narrow rostrum (Fig. 14). Sagittal and lambdoidal crests are present and prominent. Upper incisors parallel. First upper premolar diminutive. Lacrimal processes are well-developed. Basisphenoid pits are large and deep. Lower incisors bifid. Some skull measurements are shown in Table 1. Identification. The forearm length is> 55 mm, the total length of the skull is> 22 mm, and the basisphenoid pits are large and relatively deep, distinguishing the only captured individual of this species from N. laticaudatus and N. aurispinosus (Eger 2008).