Uroderma bilobatum Peters, 1866

Velazco, Paúl M. & Patterson, Bruce D., 2019, Small Mammals Of The Mayo River Basin In Northern Peru, With The Description Of A New Species Of Sturnira (Chiroptera: Phyllostomidae), Bulletin of the American Museum of Natural History 2019 (429), pp. 1-69 : 41-42

Uroderma bilobatum Peters, 1866

VOUCHER MATERIAL: Tingana: 4 adult females ( FMNH 203460 ; MUSM 39238 , 39240 , 39241 ), 6 adult males ( FMNH 203456 , 203458 , 203462 , 203640 ; MUSM 39237 , 39239 ) ; Waqanki: 1 adult female ( MUSM 39236 ) ; see table 18 for measurements.

IDENTIFICATION: The latest taxonomic review of the Uroderma bilobatum species complex was by Mantilla-Meluk (2014). He recognized four species in this complex: the nominate species U. bilobatum , a newly described taxon ( U. bakeri ), and two species formerly treated as subspecies ( U. convexum and U. davisi ). Currently, Uroderma bilobatum is thought to be restricted to east of the Andes (Mantilla-Meluk, 2014), and it can be distinguished from the other species of the genus by the following combination of characteristics: dark color, prominent facial stripes, yellowish ear margin (becoming pale yellow to white on dry museum skins), dorsum of uropatagium nearly naked, rostrum not elevated with a dorsal convexity present dorsally, interorbital constriction not swollen, junction of the nasal and maxillae forms an obtuse angle in lateral view, and the edge of the maxillae (that forms the eye socket) forms a rim. Additional measurements were provided by Goodwin and Greenhall (1961), Husson (1962, 1978), Davis (1968), Carter and Dolan (1978), Swanepoel and Genoways (1979), Brosset and Charles-Dominique (1990), Anderson (1997), Simmons and Voss (1998), and Lim et al. (2005). Three subspecies are recognized: U. b. bilobatum (lowlands east of the Andes in Venezuela, Colombia, Ecuador, Peru and Bolivia, east through the Guianas, and south to Brazilian Amazonia and eastern Brazil), U. b. thomasi (eastern piedmonts of the Andes in Ecuador, Peru, and Bolivia), and U. b. trinitatum ( Trinidad) . Based on distribution and range of measurements, our Mayo River basin voucher material should correspond to U. b. thomasi .

REMARKS: One female (MUSM 39236) that we collected was lactating.