FIGURE 2 in Cranial anatomy of tadpoles of five species of Scinax (Hylidae, Hylinae)

FIGURE 2. Scanning electron photomicrographs (SEM) of the oral discs of Scinax species. (A) S. uruguayus stage 37, frontal view showing lower jaw sheath, lower labial tooth rows, and widely-spaced mental marginal papillae; (B) S. aromothyella stage 31, detail of multicusped labial teeth; (C) S. acuminatus stage 39, detail of the lower labial tooth rows and mental gap; (D) S. acuminatus stage 39, detail of upper labial tooth with cusps reduced or absent. Bars (A, C) = 0.25 mm and (B, D) = 0.05 mm.