Myotis riparius Handley, 1960

Cláudio, Vinícius C., Barbosa, Gedimar P., Rocha, Vlamir J. & Rassy, Ricardo Moratelli Fabrício B., 2020, The bat fauna (Mammalia: Chiroptera) of Carlos Botelho State Park, Atlantic Forest of Southeastern Brazil, including new distribution records for the state of São Paulo, Zoologia (e 36514) 37, pp. 1-32 : 25-26

Myotis riparius Handley, 1960

Fig. 40

Taxonomy. The distinction of M. riparius from M. simus , M. levis , M. albescens , M. ruber , M. lavali and M. nigricans is discussed above. Myotis riparius can be distinguished from M. izecksohni by the wooly and shorter dorsal fur (ca 5 mm), which is silky and long (7.8–8.5 mm) in M. izecksohni ( Moratelli et al. 2011a, 2013). Specimens of M. riparius from PECB (ZSP 007, 052; see Table 10 for measurements) have a wooly and slightly bicolored dorsal fur, with blackish brown basis and mummy brown tips, averaging 5 mm on shoulder region ( Fig. 43).The ventral fur is lighter than the dorsal and bicolored, with dark brown basis and cinnamon-brown tips. The fringe of hairs on the edge of the uropatagium is absent, the wing membrane is attached to the feet, face is reddish and ears are light brown.

Distribution. In Brazil, the species is recorded in all biomes in the states of Acre, Amazonas, Amapá, Bahia, Minas Gerais, Pará, Paraná, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, São Paulo, and Tocantins ( Tavares et al. 2008, Novaes et al. 2017, Reis et al. 2017). In São Paulo, there are records on the east region of the state, mostly on the coastal Atlantic Forest ( Garbino 2016).

Field observations. One adult male and one adult female were captured in ground-level mist-nets set at wide trails, on sampling sites M2 and M39 (Appendix 1). Captures occurred in July and October.