Figure 2. Principal Component Analysis (PCA) of males (triangles) and females (dots) of Hylodes perere. Dimension1 (Dim1) explains 26.5% and dimension 2 (Dim2) explains 15.8% of the observed variation in the sampling. Morphometric variables: snout-vent length (SVL); head length (HL); head width (HW); eye diameter (ED); upper eyelid width (UEW); interorbital distance (IOD); internarial distance (IND); tympanum diameter (TD); tibia length (TL); thigh length (THL); eye–nostril distance (END); nostril to tip of snout distance (NSD); foot length (FL); third finger disk diameter (FD3); fourth toe disk diameter (TD4); thorax length (TXL); arm width (AW); forearm width (FW); thigh width (TW); and gastrocnemius width (GW).