Figure 1. Drawings of the anterior region of the cleared-and-stained chondrocranium of Pipa arrabali in dorsal view. A, 35027-A (SVL: 3.51 mm); B, 35055-A (SVL: 3.81 mm); C, 35000-A (SVL: 5.30 mm); D, 35045-C (SVL: 5.67 mm). The structures painted in red represent the bones. The bars correspond to 1 mm.