Myotis riparius Handley, 1960

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 : 44

Myotis riparius Handley, 1960

VOUCHER MATERIAL: Waqanki: 2 adult females ( FMNH 203650 ; MUSM 39245 ) ; see table 19 for measurements.

IDENTIFICATION: We consulted descriptions and measurements of Myotis riparius provided by Handley (1960), LaVal (1973), Simmons and Voss (1998), Brosset and Charles-Dominique (1990), López-González et al. (2001), Moratelli et al. (2013), and Novaes et al. (2017). No subspecies are currently recognized in M. riparius ( Novaes et al., 2017) . Our Mayo River basin voucher specimens exhibit the diagnostic characteristics of the species: fur long and woolly; dorsal pelage unicol- ored; plagiopatagium attached to the foot at the level of the base of the toes; a fringe of hairs lacking along the trailing edge of uropatagium; sagittal and lambdoidal crests present; and occipital region flattened posteriorly ( Novaes et al., 2017). Measurements of the Mayo River specimens fall within the range of measurements reported for the species.

REMARKS: One female (MUSM 39245) that we collected was lactating.