Phylloderma stenops Peters, 1865

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 : 75-76

Phylloderma stenops Peters, 1865

VOUCHER MATERIAL (TOTAL = 3): Jenaro Herrera (MUSM 5495, 5916), Nuevo San Juan (MUSM 13231); see table 33 for measurements.

UNVOUCHERED OBSERVATIONS: None.

IDENTIFICATION: Phylloderma is a monotypic genus that occurs from southern Mexico to

southeastern Brazil (Williams and Genoways, 2008; Reid, 2009), but it seems to be rare (or infrequently captured) throughout its distribution (Medellín et al., 2000; Esbérard, 2012). Phylloderma stenops can be distinguished from other phyllostomines by the following traits: relatively large size (forearm 65–80 mm, greatest length of skull 29–32 mm); calcar equal or shorter than foot; tail extending to middle of uropatagium; face naked, with pinkish skin; horseshoe of noseleaf fused to upper lip below nostrils; wingtips whitish; rostrum shorter than braincase; two upper incisors; first lower incisor bifid; and three lower premolars, of which the second is minute (Goodwin, 1940; Barquez and Ojeda, 1979; Williams and Genoways, 2008; Reid, 2009; López- Baucells et al., 2018). Descriptions and measurements of P. stenops were provided by Goodwin (1940), Husson (1962, 1978), Barquez and Ojeda (1979), Swanepoel and Genoways (1979), Lim et al. (2005), Brito M. and Arguero (2012), and Salas et al. (2014). Three subspecies are currently recognized: P. s. septentrionalis (southern Mexico to Costa Rica), P. s. stenops ( Panama to southern Brazil), and P. s. boliviensis (central Bolivia) (Williams and Genoways, 2008).

Ascorra et al. (1993) and Fleck et al. (2002) correctly identified their specimens from Jenaro Herrera and Nuevo San Juan, respectively, as Phylloderma stenops . The voucher material we examined from the Yavarí-Ucayali interfluve conforms to previous descriptions of P. stenops stenops , with measurements that fall within the range of size variation previously documented for this taxon.

REMARKS: The single nocturnal capture of Phylloderma stenops accompanied by ecological data from our region was in a ground-level mistnet in primary forest. No roosting groups of this species were encountered during our study.