Macrophyllum macrophyllum (Schinz, 1821)

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 : 74

Macrophyllum macrophyllum (Schinz, 1821)

VOUCHER MATERIAL (TOTAL = 2): Nuevo San Juan (AMNH 273075; MUSM 15212); see table 33 for measurements.

UNVOUCHERED OBSERVATIONS: None.

IDENTIFICATION: Macrophyllum , a monotypic genus, is easily distinguished from other phyllostomines by the following combinations of characteristics: relatively small size (7–10 g); a long tail that does not quite reach the outer edge of an extensive uropatagium supported by long calcars; very long feet (≥ 10 mm); longitudinal rows of denticles on the distal lower surface of the uropatagium; a lanceolate noseleaf with a medial ridge; short rostrum; nares emarginated laterally and dorsally, exposing a flattish area over the incisor roots; two pairs of lower incisors; and second lower premolars minute and crowded lingually, such that the first and third lower premolars are almost in contact (Harrison, 1975; Reid, 2009; López-Baucells et al., 2018). Descriptions and measurements of M. macrophyllum were provided by Davis et al. (1964), Hill (1964), Harrison and Pendleton (1974), Harrison (1975), Taddei (1975), Husson (1978), Swanepoel and Genoways (1979), Brosset and Charles-Dominique (1990), Simmons and Voss (1998), Barquez et al. (1999), López-Gonzáles (2005), and Feijó et al. (2015). No subspecies are currently recognized (Williams and Genoways, 2008).

Fleck et al. (2002) correctly identified their specimens from Nuevo San Juan, which conform to previous qualitative and morphometric descriptions of Macrophyllum macrophyllum .

REMARKS: We found a single roosting group of Macrophyllum macrophyllum near Nuevo San Juan, consisting of two individuals (both adult males; collected on 10 September 1999) on the underside of a large tree that had fallen across a stream in primary forest. The bats were sheltered in a deep recess between two downward-facing buttresses directly over the water. No other bats were found in this roost .

Most previously described roosts of Macrophyllum macrophyllum have been found in caves or