A Genetic confidence score (GIS) was defined for each species group by weighted consideration of known sequences (see File S1 for equation details). Univariate pairwise comparisons of external (B) and cranial measurements (C) of Molossus species present in Argentina (and Brazil) based on genetically confirmed specimens (M. fluminensis, M. melini, M. molossus, and Molossus sp. nov.). Box-and-whisker plots show data distributed across quartiles, the vertical lines indicate the ranges, and outliers are shown as separate data points. *, **, and *** represent significant pairwise differences among species.