Myotis izecksohni Moratelli, Peracchi, Dias & Oliveira, 2011

Comments.

Among all Myotis specimens from Argentina analyzed, only one voucher (CML 10200) was identified as M. izecksohni . It is a medium-sized species (FA 37.8 mm, body mass 4 g; Table 7, Fig. 15). Ears comparatively short (length 12.1 mm). Silky, moderately long fur (LDH 6-8 mm, LVH 5-6 mm). Dorsal fur slightly bicolor, with blackish bases (2/3 hair length) and Bone Brown tips (1/3 hair length). Ventral fur strongly bicolored, with blackish bases (2/3 hair length) and Buffy Brown tips (1/3 hair length). Membranes and ears are Mummy Brown. Legs and dorsal surface of uropatagium naked. A fringe of hairs along the trailing edge of the uropatagium is absent. The plagiopatagium attached to feet on the level of the base of the toes by a wide band of membrane. Skull delicate and small in size (GLS 14.6 mm, BCB 6.8 mm); the rostrum comparatively elongated; mastoid process weakly developed. The P3 is smaller than P2 and usually aligned to the toothrow. Sagittal crest and lambdoidal crests very low. Parietal straight or slightly inclined forward; occipital region is rounded and projected beyond the posterior limit of the occipital condyles; braincase elongated in dorsal view; the postorbital and interorbital constrictions comparatively broad.

This species occurs from southeastern Brazil to northern Argentina, in dense ombrophilous forests (Moratelli et al. 2019a). The only record in Argentina is from humid and dense forests from Misiones (210 m) in the Alto Paraná Atlantic Forest (Barquez et al. 2017).