Manuel E. Acevedo

Background The genus Metlapilcoatlus was recently erected to include six species of stout venomous snakes, known as the jumping pitvipers, which inhabit mountainous areas of Mesoamerica. This group maintains affinity with Atropoides picadoi, another jumping pitviper with restricted distribution in Costa Rica and Panama. Although the venom of A. pic...

Systematic assessments of species extinction risk at regular intervals are necessary for informing conservation action1,2. Ongoing developments in taxonomy, threatening processes and research further underscore the need for reassessment3,4. Here we report the findings of the second Global Amphibian Assessment, evaluating 8,011 species for the Inter...

Systematic assessments of species extinction risk at regular intervals are necessary for informing conservation action1,2. Ongoing developments in taxonomy, threatening processes and research further underscore the need for reassessment3,4. Here we report the findings of the second Global Amphibian Assessment, evaluating 8,011 species for the Inter...

New record of Hemidactylus garnotii for Guatemala.

Significance: Bothriechis represents a monophyletic basal genus of eleven arboreal palm-pitvipers that range from southern Mexico to northern South America. Despite palm-pitvipers' putative status as diet generalists, previous proteomic analyses have revealed remarkable divergence between the venoms of Costa Rican species, B. lateralis, B. schlege...

Dieses mittelamerikanische Land erstreckt sich zwischen den Küsten vom Atlantik und Pazifik. Ein Viertel der Landesoberfläche ist Hochland der Sierra de los Cuchumatanes im Norden und der Sierra Madre de Chiapas im Süden mit zum Teil aktiven Vulkanen. Das Klima des Hochlandes ist mild und mit Nebelwald und Berg-Regenwald bedeckt. Die Regenzeit begi...

We describe Incilius aurarius sp. nov., a new species of toad known from several localities on the humid Caribbean slopes of the Sierra de los Cuchumatanes in Huehuetenango, Guatemala, and adjacent highlands of Chiapas, Mexico. This species previously has been confused with populations of Incilius valliceps and Incilius macrocristatus. The new spec...

New salamanders of the genus Oedipina are described from the xeric Motagua Valley in eastern Guatemala, the El Trifinio highlands near the Honduras/El Salvador borders, and the Pacific versant of south-central Guatemala. These new species have been previously associated with known species, but possess distinctive foot morphology, different numbers...

New salamanders in the genera Bolitoglossa and Dendrotriton are described from the highlands of Guatemala. These species are distinguished from their congeners by morphology and molecular differences, including elements of color pattern. These new species of salamanders were collected over the last 30 years, and for many of them the localities of s...

Comparison of recent and historical surveys of frog populations in cloudforest habitat in Sierra de las Minas, Guatemala, indicated population declines and local extirpation of several species. Pathological exams of diseased tadpoles indicated infection by amphibian chytridiomycosis. The local habitat has been severely altered by recent establishme...

We describe a new species of treefrog from the cloud forest of the Sierra de Los Cuchumatanes of northwestern Guatemala. This frog is a member of the fringe-limbed group of hylids and may be distinguished most easily from other members of the group by the poorly developed dermal fringe along the lower outer edge of the forearm and a mere trace of a...

We describe a striking new lizard of the genus Abronia from the Sierra de Los Cuchumatanes of Guatemala. Adults of the new Guatemalan species have a unique body pattern of white or yellow transverse markings on a black background and a suite of morphological characters that differentiate them from all congeners. It is the only species of Abronia kn...