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We analyzed the thermal ecology and activity patterns of the lizard community from the Restinga of Jurubatiba, Rio de Janeiro, Brazil. The broadest activity was that of Tropidurus torquatus, a sit-andwait forager, while the active foraging teiid Cnemidophorus littoralis had the shortest activity. The nocturnal gekkonid Hemidactylus mabouia was found active during the day only during early morning and late afternoon, when environmental temperatures are low. Body temperature was highest for Cnemidophorus littoralis and lowest for the two Mabuya species. The patterns found here are discussed and compared to those of congeneric species in other habitats in Brazil.Key words: thermal ecology, lizard community, activity patterns, restinga habitat. RESUMOEcologia termal e padrões de atividade da comunidade de lagartos da restinga de Jurubatiba, Macaé, RJForam analizados a ecologia termal e os padrões de atividade da comunidade de lagartos da restinga de Jurubatiba, Rio de Janeiro, Brasil. A espécie com atividade mais extensa foi Tropidurus torquatus, um forrageador "senta-e-espera", enquanto o forrageador ativo Cnemidophorus littoralis teve a atividade mais restrita. O geconídeo noturno Hemidactylus mabouia foi encontrado ativo durante o dia apenas no início da manhã e no final da tarde, quando as temperaturas ambientais estão baixas. A temperatura corpórea foi mais alta para Cnemidophorus littoralis e mais baixa para as duas espécies de Mabuya. Os padrões aqui encontrados são discutidos e comparados com os de espécies congenéricas em outros habitats no Brasil.Palavras-chave: ecologia termal, comunidade de lagartos, padrões de atividade, restinga.

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The helminth fauna of two sympatric congeneric skinks (Mabuya agilis and M. macrorhyncha) from two distinct "restinga" habitats (Praia das Neves and Grussaí) in southeastern Brazil were studied, totalling four data sets (sample sizes ranging from 11 to 28). A total of ten helminth species were associated with the skinks: Raillietiella sp., Paradistomum parvissimum, Pulchrosomoides elegans, Oochoristica ameivae, Hexametra boddaertii, Parapharyngodon sceleratus, Physalopteroides venancioi, Physaloptera sp., an unidentified acuariid nematode and an unidentified centrorhynchid acanthocephalan. Except for Hexametra boddaertii (found only in Grussaí) and Pulchrosomoides elegans (found only in Praia das Neves), all helminth species were present at both localities. Half of the helminth species were present only as larvae and, in most cases, appear to represent paratenic parasitism. Overall prevalences of infection were high for both host species in both localities. Mabuya agilis tended to have richer and more diverse infracommunities than M. macrorhyncha. Some parameters of infection by individual helminth species seem to be related to the ecology of each Mabuya species. The parasite faunas were qualitatively very similar among species and/or localities, but quantitative similarities were more varied, due to differential representativeness of individual helminth species among host populations. The helminth communities of both skink species can be classified as non-interactive, being composed of site-specialists and immature stages of non-lizard parasites.

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ABSTRACT. Predation on bats by snakes is relatively infrequently reported in the literature, though it may actually not be an uncommon phenomenon, since bat colonies represent a potential concentration of food for many medium-sized or large snakes. Herein we describe four events of bat predation by snakes and present a review of predation records of snakes on bats in the Neotropics compiled from the literature. A total of 20 species of snakes have been recorded so far as predators of bats in the New World tropics, with boiids being represented by the greatest number of cases. Due to the semi-arboreal habits of most of its species, their large size and their usual preference for mammalian prey, the Boiidae are probably the main reptilian predators of bats in the Neotropics, though predation by colubrids may also be relatively frequent. Two types of predatory events can be pointed out: (1) on active bats outside refuges or exiting them, and (2) on animals (active or inactive) inside refuges. The former strategy is apparently used mainly by boiids, whereas the latter strategy appears to be the one most used by large colubrids.