Luis Canseco-Márquez

• Maestro en Ciencias
• National Autonomous University of Mexico

El Municipio de San Pedro Totolápam se localiza dentro de la región fisiográfica conocida como Montañas y Valles del Centro. Esta región se caracteriza por presentar un mosaico de cadenas montañosas. El clima tropical que la región posee, ha dado como resultado que la zona esté dominada por comunidades de selva baja caducifolia, aunque hacia las pa...

Well-documented natural history allows for thorough study of a species’ ecology and evolution. However, inadequate natural history data hamper such studies for many species. For example, diet plays a major role in the evolution of species and traits, but thorough quantitative dietary information is often lacking for many groups. Garter snakes (Tham...

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...

Se reporta la presencia de Anolis cymbops y Anolis petersii en una nueva localidad de la región de Sierra Negra, Puebla. Estos registros cubren un vacío en la distribución de ambas especies.

Aportamos nuevos registros de distribución para la serpiente chatilla Loxocemus bicolor en el Estado de Oaxaca. Estos registros representan nuevo registro Municipal y nuevo intervalo altitudinal. También aportamos información sobre su dieta.

We describe a new species of plethodontid salamander of the genus Pseudoeurycea from the Sierra de Zongolica, Veracruz, Mexico. The new species is distinguished from all other species in the genus by morphological and genetic features and by coloration. Based on a mtDNA phylogeny, the new species belongs to the Pseudoeurycea juarezi group and is mo...

Geophis laticollaris and G. russatus are rare Mexican snakes currently known in the scientific literature only from their holotypes. However, fieldwork conducted in the states of Guerrero and Oaxaca by us and other workers during the last decades has made a few specimens of each taxon available for study. We review the taxonomic status of G. russat...

We describe a new species of Knob-scaled Lizards of the genus Xenosaurus from the Sierra de Jurez of Oaxaca, Mxico. Although this new species was identified as a distinct, undescribed lineage (and sister taxon to X. grandis) by previous molecular phylogenetic studies of the genus, we documented that it also differs from all of its congeners by a un...

A new snake species of the genus Rena is described from northern Jalisco, Mexico. The new species represents an isolated member of the R. dulcis group in the extreme southwest Mesa Central of the country. We redefine the R. dulcis and R. humilis groups within the genus Rena. The status of the other species allocated to these groups is discussed.

En esta nota se reporta una nueva localidad para Geophis lorancai, especie endémica de los estados de Puebla y Veracruz y se discute brevemente su potencial tolerancia a la perturbación.

Oaxaca is Mexico's richest state in terms of herpetozoan species, but it is also one of the top ten states with the highest rates of deforestation in the country. Therefore, having update checklists of the herpetofauna that inhabit a region and the threats they face are the ground for establishing good conservation policies for these species. The h...

The Selva Zoque region is characterized by a great variety of ecosystems for which there is little information about reptile species diversity and their conservation status. This study is the first assessment of the species richness, composition, and conservation status of reptiles of this region. Additionally, this information is compared with tha...

The presence of the Cofre de Perote Salamander, Isthmura naucampatepetl, in the state of Puebla, Mexico, is confirmed based on a population found during recent forestland surveys. The new population is the largest known for the species, including at least 26 individuals. Information about the size, weight, and color pattern variations is provided f...

The Altas Montañas region in west-central Veracruz has been recognized as an important area for the discovery of new species of amphibians and reptiles since the 1940's and has been considered a biologically important "hotspot" for its richness and endemism of species. We performed extensive sampling in La Colonia Agrícola Rincón de las Flores (CAR...

Incilius cristatus is distinguished from other toad species by presenting prominent crests. It is classified as a critically endangered species by the IUCN, and under special protection by NOM-059-SEMARNAT-2010. Also, it is an endemic species of Mexico. In this note, we report a predation event of I. cristatus by Sumichrast's Garter Snake, Thamnoph...

Incilius cristatus is distinguished from other toad species by presenting prominent crests. It is classified as a critically endangered species by the IUCN, and under special protection by NOM-059-SEMARNAT-2010. Also, it is an endemic species of Mexico. In this note, we report a predation event of I. cristatus by Sumichrast's Garter Snake, Thamnoph...

The Cuban Brown Anole (Anolis sagrei) is native to the Bahamas, the Cuba Archipelago, and Little Cayman, but is now among the world's most widely distributed invasive lizards. In Mexico, the species has been reported from the states of Campeche, Chiapas, Jalisco, Quintana Roo, Tabasco, Tamaulipas, Veracruz, and Yucatán. However, no complete compend...

We report the first records of five species of hylid frogs from the Mexican state of Tabasco: Charadrahyla chaneque (Duellman, 1961), Duellmanohyla chamulae (Duellman, 1961), Exerodonta bivocata (Duellman & Hoyt, 1961), Quilticohyla zoque (Canseco-Márquez et al. 2017), and Ptychohyla macrotympanum (Tanner, 1957). These species are associated with s...

Rhadinaea marcellae Taylor, 1949 is known from only 12 specimens. Based on recent fieldwork and research in scientific collections and databases, we report 14 new records of R. marcellae, bringing the total number of verified occurrences up to 26, updating our understanding of this secretive species' distribution in the tropical and cloud forests o...

Distributional and natural history notes for Bromeliohyla dendroscarta (Anura: Hylidae) in Veracruz, Mexico. Two new locality records are reported for the critically endangered hylid frog, Bromeliohyla dendroscarta, in Veracruz, Mexico. The frogs were found in semideciduous tropical forest, an ecotone of semideciduous tropical forest and mountain c...

This paper reports tree new locations, two new habitats and an increase in the altitudinal range known for the Anolis schiedii, endemic species from the state of Veracruz.

Chersodromus is an endemic Mexican genus of snakes characterized by fused prefrontals shield. Only two species were previously known within the genus, C. liebmanni and C. rubriventris. We describe two new congeners, one from the Sierra Madre Oriental of northern Puebla and another from the Atlantic lowlands of the Chimalapas region in southeastern...

According to the IUCN red list half of Mexican amphibian species are in one of three categories for extinction risk. The hylids Bromeliohyla dendroscarta and Megastomatohyla mixomaculata are listed as threatened, and have been observed infrequently during the last few decades. We report recent observations of both species from the Sierra Negra regi...

Charadrahyla esperancensis, a new species of tree frog, is described from the cloud forest of Sierra d Juárez on the northern slopes of Oaxaca. This species is sympatric with C. nephila and is distinguished by the presence of a protuding snout with a distinctive downward slope posterior to the nostril in lateral view, with an evident rostral keel,...

We describe a new species of treefrog of the genus Ptychohyla from southern Mexico occurring to the east of the Isthmus of Tehuantepec. This new species can be distinguished from Mexican congeners by a combination of a pale pink iris and the presence of nuptial excrescences in breeding males. Including this new taxon, the number of species of Ptych...

We describe a new species of treefrog of the genus Ptychohyla from southern Mexico occurring to the east of the Isthmus of Tehuantepec. This new species can be distinguished from Mexican congeners by a combination of a pale pink iris and the presence of nuptial excrescences in breeding males. Including this new taxon, the number of species of Ptych...

We encountered what appeared to be an adult male Atropoides nummifer (total length ~720 mm; Fig. 1) that soon after defecated. The analysis that revealed the remains of ventral scales, dorsal scales, and cranial bones (quadrate, maxilla, and fangs) of a snake of the family Viperidae. The comparison of individual dorsal scales, confirms the identifi...

The Uxpanapa-Chimalapas region, with one of the most extensive and best preserved tropical forest areas in Mexico, is undergoing major anthropogenic changes, and only some portions of the territory are under the protection of local communities. Although the biodiversity of the region is known to be high, no study has yet analyzed the diversity of a...

A new species of the Geophis dubius group is described from the mountains of the Sierra Zongolica in west-central Veracruz and the Sierra de Quimixtlán in central-east Puebla. The new species is most similar to G. duellmani and G. turbidus, which are endemic to the mountains of northern Oaxaca and the Sierra Madre Oriental of Puebla and Hidalgo, re...

Table 2. Selected characters in the species of the Geophis dubius group.

Table S1. Specimens examined.

México es uno de los países con la mayor riqueza de especies de reptiles, sin embargo, para muchas de ellas se desconoce la ecología básica y su área de distribución real. En este estudio se documenta la presencia de Coleonyx elegans, una especie de lagartija protegida por la normatividad ambiental mexicana, en el norte de Veracruz, ampliando el lí...

Se confirma la presencia de la tortuga Chelydra rossignonii para Oaxaca, en el afluente del río Sarabia, proveniente de la vertiente del golfo, a la altura de la localidad de San Isidro Lachigushe.

We report the first record of Thorius troglodytes from the González-Ortega locality, La Fragua, Puebla, México in a pine-oak forest fragment, on the border with the state of Veracruz. This record represents a new locality in the state and extends the distribution of this species 70 km north of the nearest known locality.

A partir del trabajo de campo realizado en diferentes localidades, se aporta nueva información relacionada con la distribución geográfica de la rana arborícola Anotheca spinosa en México, que cubre vacíos en la distribución previamente conocida. El hallazgo de esta especie en el sureste de Puebla representa el primer registro en el estado. La distr...

Se registran 3 ejemplares de Tantillita lintoni para la región de Uxpanapa-Chimalapas, los cuales representan el primer registro de esta especie para el estado de Oaxaca y la segunda localidad conocida para el estado de Veracruz.

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Based on morphological identification and a molecular analysis of specimens collected in the urban zone of Playa del Carmen in the state of Quintana Roo, we report the first record of the invasive greenhouse frog (Eleutherodactylus planirostris) in the Mexican Caribbean. The presence of E. planirostris in the Yucatán Peninsula suggests an urgent ne...

Resumen Se describe una nueva especie del género de colúbridos Geophis del norte de Puebla, México. La nueva especie posee la mayoría de los caracteres diagnósticos del grupo G. dubius, pero difiere de todas las demás especies de Geophis por presentar la loreal más corta que la longitud combinada de la prenasal y postnasal, una escama postocular, u...

A new species of Lepidophyma is described from the Sierra Negra in southern Puebla. This new species is known only from the type locality and is characterized by a combination of several characters (number of dorsal scales, total of femoral pores, number of lateral tubercles, number the dorsal interwhorls separated the whorls, number of the paraver...

We describe the diversity of reptiles in the state of Veracruz, Mexico, with information on the endemic species, threatened species, and priority conservation sites in the state.

We reported the second record for Puebla of Ophryacus undulatus.

In México, Hyalinobatrachium fleischmanni is distributed in the states of Guerrero, Veracruz, Oaxaca, Chiapas, and Puebla. We provide records from the Sierra Norte of Puebla, which also represent a range extension of 172 km from the only locality known in that state and representing the species' northernmost distributional record.

In México, Hyalinobatrachium fleischmanni is distributed in the states of Guerrero, Veracruz, Oaxaca, Chiapas, and Puebla. We provide records from the Sierra Norte of Puebla, which also represent a range extension of 172 km from the only locality known in that state and representing the species' northernmost distributional record.

En México la rana Eleutherodactylus leprus está distribuida en los estados de Veracruz, Tabasco, Oaxaca, Chiapas y Puebla. Se presenta un registro de esta especie en la Sierra Norte de Puebla, el cual representa una ampliación del área de distribución de 177 km al norte de la localidad más cercana en este estado

Until recently, the diversity and distribution patterns of the her-petofauna within the state of Puebla, México, were not well known (Canseco-Márquez et al. 2000). However, with the discovery of new distributional records (e.g., Canseco-Márquez et al. 2003, 2004, 2005; Canseco-Márquez and Gutiérrez-Mayén 2006; García-Vázquez et al. 2006; Solano-Zav...

Se describe una nueva especie de Plectrohyla de la Sierra de Miahuatlán al sur de Oaxaca, México. Se conoce de una sola hembra adulta que fue capturada en un bosque de pino y encino a 2550 metros de elevación. La nueva especie es similar a Plectrohyla cembra en tamaño, habito, y en tener el tímpano parcialmente escondido, pero difiere notablemente...

Se describe una nueva especie de salamandra terrestre del género Pseudoeurycea de las montañas de la Mixteca de Oaxaca. Comparada con los otros miembros del género, la nueva especie es relativamente delgada y con extremidades cortas. La coloración dorsal de esta especie es gris oscuro con manchas café rojizas. La región Mixteca de Oaxaca ha sido po...

A new species of frog of the Eleutherodactylus alfredi group is described from the mountains of Zoquitlán, Puebla, Mexico. It is known from a single adult male only 15.8 mm in snout–vent length. The new species is known from an elevation of 2155 m in oak cloud forest. This new species differs most noticeably from other species in the group by its d...

A new species of Pseudocurycea is described from cloud forests of the Sierra Madre Oriental of Puebla, Mexico. The new species is distinguished from all other Pseudoeurycea by its small size, stout body, short tail, large nostrils, presence of characteristic glandular convergent ridges on the pelvic region and the tail, and by its distinctive limb...

Five specimens of Lepidophyma radula were collected recently near San Pablo Villa de Mitla, Oaxaca. The species had not been collected since its description in 1942. A redescription of the holotype is presented, including new and important taxonomic characters proposed by other workers.

Se describe una nueva especie de serpiente del género Tantilla a partir de un solo espécimen del sur de Nayarit en el Volcán Ceboruco. Esta especie se encuentra más cercanamente relacionada a aquellas del grupo Tantilla calamarina. Con la adición de esta nueva especie, el grupo contiene ahora siete especies, representado por T. calamarina, Tantilla...

Describimos el renacuajo del anuro recientemente descrito Hyla xera, y aportamos información sobre la distribución e historia natural de este hílido endémico del Valle de Tehuacán-Cuicatlán en Oaxaca y en Puebla, México. Esta especie era conocida únicamente de la localidad tipo cerca de Zapotitlán Salinas, Puebla, al sur de Tehuacán, Puebla. A part...

A new species of Lepidophyma from the Biosphere Reserve area of Tehuacan-Cuicatlan, Oaxaca, Mexico, is described. This new species, Lepidophyma cuicateca sp. nov., is known from two areas in the Cuicatlan Valley. Lepidophyma cuicateca sp. nov. is a member of the Lepidophyma gaigeae species Group and is characterized by its small body size, small si...

A new species of Lepidophyma from the Biosphere Reserve area of Tehuacan-Cuicatlan, Oaxaca, Mexico, is described. This new species, Lepidophyma cuicateca sp. nov., is known from two areas in the Cuicatlan Valley. Lepidophyma cuicateca sp. nov. is a member of the Lepidophyma gaigeae species Group and is characterized by its small body size, small si...

FIGURE 4. Type series of Lepidophyma cuicateca illustrating variation in dorsal color pattern.

FIGURE 1. A: Lateral, B: dorsal and C: ventral view of the holotype of Lepidophyma cuicateca (MZFC 16419) from Santa María Texcatitlán, Oaxaca.

FIGURE 2. Specimens in life and habitat of Lepidophyma cuicateca; A: an adult specimen from Santa María Texcatitlán (MZFC 19739); B: Juvenile from Santa María Texcatitlán (Paratype, MZFC 16421); C: an adult from Santiago Dominguillo; D: Habitat at the type locality (Santa María Texcatitlán); E: Habitat in Santiago Dominguillo.

FIGURE 3. Geographic distribution of the members of the Lepidophyma gaigeae Group.