Cynomops planirostris (Peters, 1866)

Velazco, Paúl M., Voss, Robert S., Fleck, David W. & Simmons, Nancy B., 2021, Mammalian Diversity And Matses Ethnomammalogy In Amazonian Peru Part 4: Bats, Bulletin of the American Museum of Natural History 2021 (451), pp. 1-201 : 139-140

Cynomops planirostris (Peters, 1866)

Figure 35

VOUCHER MATERIAL (TOTAL = 1): Jenaro Herrera (AMNH 278460); see table 62 for measurements.

UNVOUCHERED OBSERVATIONS: Four additional individuals were captured at Jenaro Herrera during the CEBIO bat course on 22 January 2012.

IDENTIFICATION: Cynomops , once treated as a subgenus of Molossops but now ranked as a distinct genus, ranges throughout most of the Neotropics and is currently thought to include eight species (Moras et al., 2016, 2018; Simmons and Cirranello, 2020). Moras et al. (2016) reviewed the taxonomy and systematics of Cynomops , and Moras et al. (2018) provided a helpful key to the species.

Moras et al. (2016) recommended that Cynomops paranus should be considered a junior synonym of C. planirostris contra Williams and Genoways (1980b), Barquez et al. (1993), and Simmons and Voss (1998), and we concur with that assessment. Thus defined, C. planirostris (including paranus ) is widely distributed in tropical and subtropical South America east of the Andes (dos Santos et al., 2015; Moras et al., 2016). It can be distinguished from other congeneric species by external and craniodental features including small size (forearm 29–37 mm, greatest length of skull 14–17 mm), bicolored dorsal fur (varying from chocolate brown to grayish brown), paler (whitish or pale buff) ventral pelage, anterior edge of the lacrimal ridge sloping smoothly to the forehead, incisive foramina in close proximity to the accessory foramen (the three foramina forming an equilateral triangle), shallow basisphenoid pits, and presence of a well-developed median ridge on the lingual face of the second lower premolar (Moras et al., 2016, 2018). Descriptions and measurements of this species (in a variety of binomial and trinomial combinations; see above) have been provided by Husson (1962, 1978), Carter and Dolan (1978), Simmons and Voss (1998), Lim and Engstrom (2001a), Díaz (2011), Giménez and Giannini (2016), and Moras et al. (2016, 2018). No subspecies are currently recognized (Moras et al., 2016).

Our single specimen from the Yavarí-Ucayali interfluve conforms to previous descriptions of Cynomops planirostris , with measurements that fall within the range of size variation previously documented for the species.

REMARKS: One individual of Cynomops planirostris from our region was captured in an elevated mistnet in a clearing, and the other four were taken in ground-level mistnets over a stream.

Figures

FIG. 35. Photographs of an adult Cynomops planirostris captured at Jenaro Herrera. Photograph by Marco Tschapka.