In the last decades research efforts studying Amazonian biodiversity have increased
substantially, with many new localities surveyed, new specimens collected, and some new …

We present distribution data of all Alopoglossidae and Gymnophthalmidae lizards known
from the Brazilian Amazonia, totaling 54 species-level taxa, belonging to 17 genera and two …

Morphology is among the most important traits influencing the interaction of individual
animals with their environments. Fossoriality reflects this functional association between …

Here we present the results of a herpetofauna survey carried out in the municipality of Porto
Walter, southwest Amazon, Brazil, characterized by the presence of forested and deforested …

A checklist of the amphibians and reptiles of 35 localities situated in the northern Peruvian
dry forest valley of the Marañón River and its tributaries, containing 14 species of …

In vertebrates, true parthenogenesis is found only in squamate reptiles and (mostly)
originates via interspecific hybridization after secondary contact. In many cases …

We describe a new genus and two new species of gymnophthalmid lizards based on
specimens collected from Brazilian Amazonia, mostly in the" arc of deforestation". The new …

Recent efforts to improve sampling of Brazilian biodiversity have yielded a number of
undescribed species of amphisbaenids. Herein, we describe a new species of small, two …

Calcified spines in the hemipenial surface occur convergently in several gymnophthalmid
lizard species and in advanced snakes. Based on the pronounced degrees of limb reduction …

Howler monkeys (genus Alouatta) exhibit the most extensive distribution among
platyrrhines, comprising Mesoamerican and South American species groups, with the South …