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Box and whisker plots showing snout-vent length variation in adult Rhinella margaritifera (upper Amazon) and Rhinella alata (Chocó and Panama). The central bar indicates the median, the interquartile range is shown by the box length, and the range is shown by the short horizontal lines (whiskers). SVL = snout-vent length. The black cross is the holotype of Rhinella alata.
