No presente estudo foi analisado a dieta de Enyalius perditus Jackson, 1978 e suas variações de acordo com disponibilidade de alimento no Parque Estadual do Ibitipoca, Minas Gerais, Brasil. Três áreas de matas foram amostradas, utilizando-se armadilhas de queda e adesivas para captura dos lagartos e itens-presa disponíveis. Os lagartos (n= 55) foram dissecados e o conteúdo estomacal analisado. O Índice de eletividade mostrou que larvas foram importantes volumetricamente na dieta de E. perditus, enquanto que formigas e isópodos foram importantes numericamente. A quantidade de itens nas dietas de machos e fêmeas diferiram estatisticamente, talvez como uma conseqüência da maior quantidade de formigas ingeridas pelas fêmeas e isópodos e larvas pelos machos. Baseado no comportamento alimentar, os machos são mais semelhantes aos forrageadores ativos e as fêmeas, aos predadores senta-e-espera.

The present study was carried out to describe the diet, and its variations according to food availability, in Enyalius perditus Jackson, 1978 from Parque Estadual do Ibitipoca, State of Minas Gerais, Brazil. Three areas were chosen in the forest fragments; pit falls and glue traps were used to capture lizards and their preys. Lizards (n=55) were dissected in order to analyze the stomach content. The Electivity Index showed that insect larvae were volumetrically important in the diet of E. perditus, while ants and woodlices where numerically important. The quantity of diet items have differed significantly between males and females, perhaps, as a consequence of the higher quantity of ants ingested by female lizards and larvae ingested by males lizards. Based upon alimentary behavior, the male lizards resemble the active forragers and the females sit and wait forragers.

A specimen of Enyalius perditus Jackson, 1978 collected in a pitfall trap installed at the Parque Estadual do Ibitipoca, Municipality of Lima Duarte, State of Minas Gerais, Brazil, on 19 March 1997, showed a transversal rupture of the skin, on dorsum of posterior region of the head, just joining the ear openings. In captivity, the continuance of the shedding scain spent approxima-tely one hour and forty minutes. The pieces of skin were removed in the sequence: head, venter, arms and flanks, legs, tail, and finally the tip of the fingers. The removed skin was eaten at the end of each stage.

The taxonomic status of Pseudis fusca Garman and P. bolbodactyla A. Lutz is revalidated, and here they are considered full species. The rediscovery of P. fusca is related, and a redescription of the species is presented. The redescription, the designation of the lectotype, and the description of the tadpole of P. bolbodactyla are provided. Pseudis tocantins sp.n. is described from the Tocantins river basin. The geographical distribution of these three species is discussed.

This paper compares some morphological parameters of Hyla bipunctata Spix, 1824 adults from two populations, one from Itaguaí (Rio de Janeiro) and the other from Linhares (Espírito Santo). Some morphometric data of the morphological variation between those populations are studied.

Hyla gouveai n. sp. is described and illustrated and it is closest to the bigger individuals of the species in the group "circumdata", not presenting, however, the characteristic pattern of dark transversal bands on the posterior inner coxal surface.

Tadpoles of Hyla bipunctata Spix and H. meridiana Lutz are described and illustrated, both belonging to the "microcephala" group, occurring in the State of Rio de Janeiro. In spite of the large resemblance existent between the tadpoles of these species, they can be distinguished by morphologic aspects, coloration and dimensions on several stages. In "microcephala" group, by the verified in the tadpoles now studied and in those of others species figured in the literature, we can emphasize singular aspects as the absence of comeus denticles and papillae in the mouth, alongside of the prolonged form of the body with xiphicercal tail.