Myotis albescens (E. Geoffroy, 1806) . Ann. Mus. Hist. Nat. Paris, 8:204.

TYPE LOCALITY: Paraguay, Paraguari, Yaguaron (of neotype) .

DISTRIBUTION: S Veracruz (Mexico) to Uruguay and N Argentina.

SYNONYMS: aenobarbus, argentatus, arsinoe, isidori, leucogaster, mundus.

COMMENTS: Subgenus Leuconoe . Includes argentatus; see LaVal (1973a:25).