Lizards of Brazilian Amazonia (Reptilia: Squamata)

Eighty-nine species of lizards, six of which polytypic (forming a total of 97 taxa), are presently known from Brazilian Amazonia. This number includes six species and one subspecies described as new to science in this paper: Stenocercus fimbriatus, Lepidoblepharis hoogmoedi, Leposoma osvaldoi, L. snethlageae, Tretioscincus oriximinensis, Tupinambis longilineus, and Anolis nitens tandai. Stenocercus dumerilii is resurrected from the synonymy of S. tricristatus. Bachia cophias is considered a junior synonym of B. flavescens. B. peruana is a new record from Brazil. Anolis nitens has priority over A. chrysolepis. The Amazonian Tupinambis is shown to be T. teguixin (of which T. nigropunctatus is a junior synonym). The name T. merianae should be used for T. teguixin sensu Boulenger (1885b). Mabuya ficta is a junior synonym of M. bistriata, while the name M. nigropunctata should be used for M. bistriata sensu Vanzolini & Williams (1980). Of all species extensive descriptions and ecological data, if available, are presented. A zoogeographical analysis based on the combined distribution maps of the various species shows a main division in Amazonia of a western and an eastern fauna. A southwestern group is also recognised and, although defined by a smaller number of species, a Guianan group. The lizard fauna from Rondônia shows multiple affinities. The distribution of lizards in enclaves of open formations in Amazonia does not support the idea of continuous areas of savannas throughout Amazonia in relatively recent times

On two new species of Pseudogonatodes Ruthven, 1915 (Reptilia: Squamata: Gekkonidae), with remarks on the distribution of some other sphaerodactyl lizards

Two new species of Pseudogonatodes Ruthven, 1915, are described, one from the Rio Juruá Basin, in the state of Acre, Brazil (Amazonian rainforest), the other from Rancho Grande, in the state Aragua, Venezuela (cloud forest). Both have granular dorsals and relatively numerous fourth toe lamellae, of which the third (from tip to base of toe) is not distinctly larger than the two distal ones. The species from the Rio Juruá is small, with dark belly, and recognised, among other characteristics, by its tall, conical to flat-conical dorsals. That from Rancho Grande is relatively large, with low number of ventrals, and mental with a straight or convex posterior segment medially, among other distinctive characteristics. Some remarks on the geographic distribution of sphaerodactyl lizards in South America are presented, including a new record for Coleodactylus meridionalis. Duas novas espécies de Pseudogonatodes Ruthven, 1915 são descritas, uma procedente da bacia do rio Juruá, estado do Acre, Brasil (floresta amazônica), a outra de Rancho Grande, estado Aragua, Venezuela (floresta nublada). Ambas as espécies possuem escamas dorsais granulares e lamelas do quarto artelho relativamente numerosas, entre as quais a terceira lamela (a partir da extremidade distal do artelho) não é especialmente aumentada em relação às duas distais. A espécie do Rio Juruá é pequena, com ventre escuro, e reconhecível, entre outros caracteres, pelas escamas dorsais altas e cônicas a cônico-achatadas. A espécie de Rancho Grande é relativamente grande, com um baixo número de escamas ventrais, e margem posterior da mental com um segmento mediano formando uma linha transversal reta ou convexa, entre outros caracteres distintivos. São apresentadas também algumas observações sobre a distribuição geográfica de lagartos Sphaerodactylidae na América do Sul, incluindo um novo registro para Coleodactylus meridionalis