Platyrrhinus incarum (Thomas, 1912)

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 : 109-110

Platyrrhinus incarum (Thomas, 1912)

Figure 26C

VOUCHER MATERIAL (TOTAL = 12): Jenaro Herrera (MUSM 4215, 4216, 4218), Nuevo San Juan (MUSM 13241), Quebrada Betilia (MUSA 15165, 15169), Quebrada Blanco (MUSM 21221), Quebrada Esperanza (FMNH 89094), Quebrada Lobo (MUSA 15111), Quebrada Pantaleón (MUSA 15252), Río Blanco (MUSA 15075, 15093); see table 47 for measurements.

UNVOUCHERED OBSERVATIONS: During the Sierra del Divisor Rapid Biological Inventory, two individuals of Platyrrhinus incarum (identified as P. helleri ) were captured at Tapiche (Jorge and Velazco, 2006).

IDENTIFICATION: Platyrrhinus incarum is a widespread Amazonian species that was originally described as Vampyrops zarhinus incarum by Thomas (1912) based on a single specimen from

the Department of Pasco, Peru. Sanborn (1955), however, synonymized incarum with P. helleri , and incarum was subsequently treated as a subspecies of helleri by many authors (e.g., Koopman, 1978, 1994; Simmons, 2005; Gardner, 2008f). More recently, Velazco and Patterson (2008) restricted P. helleri to the Central American populations of the species and applied the name P. incarum to the South American populations formerly assigned to P. helleri . Platyrrhinus incarum is distinguished from other members of the genus by its small size (forearm 35–40 mm); U-shaped notch in the posterior margin of the uropatagium; poorly developed (almost imperceptible) paraoccipital processes; barely perceptible fossa on the squamosal root of the zygomatic arch; two cuspules on the posterior cristid of the second upper premolar; M1 protocone well developed; stylar cuspule present on the lingual face of the paracone of M2; and m2 hypoconid present (Velazco et al., 2010a; López-

TABLE 47

External and Craniodental Measurements (mm) and Weights (g) of Platyrrhinus incarum , P. infuscus ,

and Sphaeronycteris toxophyllum from the Yavarí-Ucayali Interfluve

Baucells et al., 2018). Descriptions and measurements of P. incarum were provided by Velazco et al. (2010a), Velazco and Lim (2014), and Velazco and Patterson (2019). No subspecies are currently recognized (Velazco et al., 2010a).

Fleck et al. (2002) identified the specimen from Nuevo San Juan as P. cf. helleri , but Medina et al. (2015) correctly identified their specimens from Quebrada Betilia, Quebrada Lobo, and Quebrada Pantaleón as P. incarum . All the voucher material we examined from the Yavarí- Ucayali interfluve conforms to previous descriptions of P. incarum , with measurements that fall within the previously documented range of intraspecific size variation.

REMARKS: Of five specimens of Platyrrhinus incarum accompanied by capture information from our region, three were taken in groundlevel mistnets and two in elevated nets; of these, two were taken in primary forest, one in secondary vegetation, and two in clearings.