Abstract
Frog species from the genus Hylodes Fitzinger occur mainly in southeastern Brazil (Frost, 2010). Of the 24 species of genus only 13 species have their tadpoles described (see Discussion below). Hylodes babax was known from the type-locality at Caparaomountain range (Heyer, 1982), and has recently been recorded from two new localities: Parque Estadual da Serra do Brigadeiro, in the Mantiqueira mountain range, and Floresta Estadual do Uaimii, in the southern Espinhaco mountain range (Pirani et al. 2010).Herein, we describe the tadpole of H babax collected in a permanent stream in Floresta Estadual do Uaimii (20°29'66" S 43°57'47" W, 1021 ma. s. 1.), Municipality of Ouro Preto, Minas Gerais, in the Quadrilatero Ferrifero mountain region, southernmost edge of the Serra do Espinhaco Range, southeastern Brazil. Tadpoles were collected in a stream where only this Hylodes species was registered during a one year monitoring study. Also, several adults of H. babax, including some calling males, were observedalong the same stream where the tadpoles were collected (calls of one male were recorded, which helped to confirm the species identity). We killed tadpoles in 5% lidocaine solution; we prepared and preserved them in 10% formalin. Voucher tadpoles are inthe herpetological collection of Museu de Zoologia Joao Moojen, Universidade Federal de Vigosa (MZUFV), Vigosa, state of Minas Gerais, Brazil. External morphology descriptions, proportions and measurements were based on fourteen tadpoles in stage 25 (Gosner 1960) (MZUFV lot 172).
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