Scanning electron microscopy shows that the buccal apparatus of Hyla pulchella pulchella larvae has a well developed and queratinized horny beack with teeth with a main cuspid. Rostrodont with heterodiontial size. Multicusped labial teeth with 10 to 12 (Mo=10) denticles in each paddle; paddle with a short neck, slightly marked. Tipic dental formulae 1,1-1/1-1,2 and 1,1-1/3 have heen observed at any of the development stages with functional teeth. Oval disc with a row of marginal papilae, and a dorsal gap. Submarginal papilae are absent. Queratodonts morfological variations might go on increasing as they make older.
Echevarría, D. (1992). Microscopía electrónica de barrido del aparato bucal de larva de Hyla pulchella pulchella (Anura: hilydae). Cuadernos de Herpetología, 7 (4), pp. 24-29