Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Charadrahyla taeniopus is a endemic frog species to Mexico that has been reported in the states of Hidalgo, Puebla and Veracruz, Mexico. Herein we report it from San Luis Potosí for the first time. These records represent an extension of 92 km from the closest locality in northern Hidalgo and represent the northernmost records of the species.

This note provides the first record of the Mexican caecilian (Dermophis mexicanus) in Costa Rica. The known distribution of this species covered from southeastern Mexico to central Nicaragua. The morphological and genetic review of an individual found in Cóbano, Puntarenas, on the Nicoya Peninsula confirms its presence in Costa Rica and increases the distribution of the species 260 km to the south.

Tropical salamanders of the Plethodontidae family are organisms for which there is no clear information about their geographical distribution, ecological aspects and the environmental conditions in which they can live. Ecological niche modeling is considered a useful tool to predict areas of environmental suitability, as well as the geographic distributions of understudied species. In this work, a search was carried out for reliable historical records, in open access data networks, as well as in scientific articles on the presence of Oedipina parvipes and Oedipina complex, which together with the implementation of climatic variables, allowed the performance of modeling of ecological niche of these species under the maximum entropy principle of MaxEnt using the Kuenm package. Our results predict areas of high environmental suitability for different regions of Central and South America, highlighting the Panama Canal and the Colombian Pacific as the most optimal places for the presence of these species of salamanders. This work shows the need for research in different fields in understudied regions where the presence of these species that do not have records or whose records are not completely reliable is predicted. Identifying the potential distribution areas of these species is of utmost importance so that informed decisions can be made for the conservation of vulnerable species that may be affected by human activities.

Se reporta por primera vez Hyloscirtus platydactylus para el municipio Rangel del estado Mérida, en los Andes venezolanos. Constituye el primer registro de este taxón para la Zona de Vida bosque seco Montano y el mayor récord de elevación para la especie. Veintiocho ejemplares post-metamórficos y una docena de renacuajos fueron encontrados durante la temporada de lluvias local mediante búsquedas visuales en pequeños manantiales rodeados de vegetación en estadios intermedios de sucesión ecológica. El nuevo registro es importante porque llena un vacío en la distribución de la especie y presenta evidencia de su presencia en un área con características ecológicas diferentes a las de las otras áreas donde ya era conocida. Este descubrimiento de H. platydactylus reviste singular importancia para la conservación de los remanentes de vegetación natural que permanecen en esta región andina de Venezuela y que son importantes en términos de la representación de su fauna y flora características. Hyloscirtus platydactylus carece grandemente de información ecológica y biológica, y está clasificada como Vulnerable (VU) en la lista roja de especies de la IUCN.

Spauligodon aff. lamothei is described based on specimens collected from the long intestine of Homonota horrida in the province of Neuquén, Argentina. The species is assigned to Spauligodon because of the presence lateral alae in males, absent in females. In males, the caudal alae is present and starts at the level of precloacal papillae and is embedded in the adcloacal papillae. In females, the caudal alae is absent, and the vulvar opening is located in the anterior part of the body just behind the excretory pore in postbulbar position. Spauligodon aff. lamothei differs from the rest of the species assigned to Spauligodon by the position of the vulva, number of tail filament spines in males and females, geographic distribution and host type. This species is the third of the genus recorded in Argentina parasitizing lizards.

The traditional knowledge that human groups have about fauna is being lost, generating the need to collect the cultural information they have about their natural resources in order to rescue that knowledge for the sustainable management of ecosystems before the loss of species. The objective of this work was to document the traditional knowledge and practices that human communities in the State of Mexico have about amphibians and and to assess if there is a current relationship between the loss of traditional knowledge of amphibians with respect to their habitat and the loss of resource knowing the perception of people with respect to their habitat. Open and semi-structured interviews were applied, supported by a photographic catalog for the identification of amphibian species. The use and utilization of twelve species was documented. The axolotls and frogs are the amphibians most used in medicine and food. There are also breeding sites for bullfrogs (Aquarana catesbeiana), which are purchased locally for didactic use in schools, while tadpoles and frogs are also used locally for food and adult frogs are captured and sold on request. Knowledge and traditional practices may be being lost either because of economic activities or because of the decrease in amphibian populations due to contamination and the drying out of aquatic bodies.

The expansion of the distribution range of the Amazonian pygmy gecko Pseudogoinatodes guianensis is carried out based on a record from Colombia in the eastern flank of the Eastern Cordillera.

The Baird's patch-nosed snake (Salvadora bairdi) is a non-venomous species endemic to Mexico, included in the official regulation Nom-059 under the category of special protection (Pr). This species has a relatively wide geographical distribution, which includes the Sierra Madre Occidental and the Transmexican Volcanic Belt. In this report, we present a new maximum length for this species based on an individual recorded in the State of Mexico.

We describe the first cases of albinism in tadpoles of the Cloud Forest Stream Frog Ptychohyla euthysanota. On August 11, 2023, three albino P. euthysanota tadpoles were found in conjunction with 11 tadpoles showing the typical phenotype of the species at Reserva Natural “Refugio del Quetzal”, located at the southern foothill of the Atitlán volcano, Municipality of Santa Bárbara, Suchitepéquez, Guatemala.