FIGURE 2 in External morphology, chondrocranium, hyobranchial skeleton, and external and internal oral features of Rhinoderma rufum (Anura, Rhinodermatidae)

FIGURE 2. Morphology of the external and internal oral structures of Rhinoderma rufum: Oral disc (A), upper jaw sheath (B), labial teeth (D); Oral roof: prenarial papillae (E), median ridge and postulations of the oral roof arena (F), right narina (G), row of the lateral papillae of oral roof arena (H), papillae of the posterior border of the oral roof arena (I); Oral floor: right papillae of the oral floor arena (J), lingual bud and lingual papillae (K), oral floor arena and posterior papillae (L), ventral velum (M). Upper jaw sheath of Rhinodermadarwinii (C).The specimens of both species are in Stage 32.