Revision of the characters of Centrolenidae (Amphibia: Anura: Athesphatanura), with comments on its taxonomy and the description of new taxa of glassfrogs
Abstract.--Anurans of the family Centrolenidae are a diverse clade of arboreal frogs distributed across tropical America. Knowledge of their taxonomy, systematics, ecology, behavior, morphology, and other evolutionary aspects of their biology is deficient. Relationships among centrolenid species remain largely unresolved, with no satisfactory phylogenetic hypothesis, and none of the current genera has compelling evidence of monophyly. Further, understanding the phylogeny of glassfrogs is constrained by species-level taxonomic problems, including incorrect description of characters, incomplete analyses of intraspecific variation, and lack of appreciation of species diversity. Herein, we define and analyze the 23 characters that are useful, in combination, in diagnosing centrolenid species, and thereby provide a reference for the use of future workers. We propose revised classifications for the parietal and visceral peritoneal pigmentation, liver form and coloration of its associated hepatic peritoneum, nuptial excrescences, and hand ornamentation. We comment on the generic and species-level taxonomy of Centrolenidae, proposing the recognition of a new genus and describing a new species from Ecuador. We treat Hyla ocellifera Boulenger as a synonym of Centrolene prosoblepon (Boettger), Hyalinobatrachium cardiacalyptum McCranie & Wilson as a synonym of Hyalinobatrachium chirripoi (Taylor), and Hyalinobatrachium crybetes McCranie and Wilson as a synonym of Hyalinobatrachium colymbiphyllum (Taylor). We also present an annotated list of the species of glassfrogs from the Republic of Ecuador with some distributional remarks.
Resumen.--Los anuros de la familia Centrolenidae forman un clado diverso de ranas arbóreas distribuidas a lo largo de América tropical. El conocimiento sobre su taxonomía, sistemática, ecología, comportamiento, morfología y otros aspectos biológicos y evolutivos es deficiente. Las relaciones entre las especies de centrolénidos permanecen ampliamente sin resolver, sin hipótesis filogenéticas satisfactorias y todos los géneros actuales tienen evidencia clara de su no-monofília. Más aún, el entendimiento de la filogenia de las ranas de cristal está limitado por problemas taxonómicos al nivel de especies, incluyendo la descripción incorrecta de caracteres, análisis incompletos de la variación intraespecífica y la falta de apreciación de la diversidad de especies. En este trabajo, nosotro definimos y analizamos los 23 caracteres que son útiles, en combinación, para diagnosticar todas las especies de centrolénidos, proveyendo una referencia para el uso de futuros investigadores. Proponemos clasificaciones revisadas para la pigmentación de los peritoneos parietal y visceral, la forma del hígado y la coloración del peritoneo hepático asociado, las excrescencias nupciales y las ornamentaciones manuales. Comentamos sobre la taxonomía a nivel genérico y específico de Centrolenidae, proponiendo el reconocimiento de un nuevo género y la descripción de una nueva especie de Ecuador. Colocamos a Hyla ocellifera Boulenger como un sinónimo de Centrolene prosoblepon (Boettger); a Hyalinobatrachium cardiacalyptum McCranie & Wilson como sinónimo de Hyalinobatrachium chirripoi (Taylor); y a Hyalinobatrachium crybetes McCranie and Wilson como sinónimo de Hyalinobatrachium colymbiphyllum (Taylor). Presentamos una lista anotada de las especies de ranas de cristal de la República del Ecuador con algunos comentarios sobre su distribución.
Cita / Citation: Cisneros-Heredia, D. F. & R. W McDiarmid. 2007. Revision of the characters of Centrolenidae (Amphibia: Anura: Athesphatanura), with comments on its taxonomy and the description of new taxa of glassfrogs. Zootaxa 1572: 1-82.
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31 agosto 2007
27 agosto 2007
Centrolene durrellorum sp. nov.
A new species of glassfrog of the genus Centrolene from the foothills of Cordillera Oriental of Ecuador (Anura: Centrolenidae)
Abstract.--A new species of frog of the family Centrolenidae is described from Ecuador, Centrolene durrellorum sp. nov. This new taxon is the first species of the genus Centrolene known to inhabit the central and southern foothills of the Cordillera Oriental of Ecuador. The new species is diagnosed from other centrolenid taxa by its moderate body size (25.7–26.1 mm adult males), uniform coloration (green in life, pale lavender in preservative), rounded snout in dorsal and lateral views, presence of medium-sized straight humeral spines with a moderate spiny point in adult males and absence of guanophores on the visceral peritonea.
Cita / Citation: Cisneros-Heredia, D. F. 2007. A new species of glassfrog of the genus Centrolene
from the foothills of Cordillera Oriental of Ecuador. Herpetozoa 20 (1/2): 27-34.
Mas información: http://www.cisneros-heredia.org/public
Abstract.--A new species of frog of the family Centrolenidae is described from Ecuador, Centrolene durrellorum sp. nov. This new taxon is the first species of the genus Centrolene known to inhabit the central and southern foothills of the Cordillera Oriental of Ecuador. The new species is diagnosed from other centrolenid taxa by its moderate body size (25.7–26.1 mm adult males), uniform coloration (green in life, pale lavender in preservative), rounded snout in dorsal and lateral views, presence of medium-sized straight humeral spines with a moderate spiny point in adult males and absence of guanophores on the visceral peritonea.
Cita / Citation: Cisneros-Heredia, D. F. 2007. A new species of glassfrog of the genus Centrolene
from the foothills of Cordillera Oriental of Ecuador. Herpetozoa 20 (1/2): 27-34.
Mas información: http://www.cisneros-heredia.org/public
23 agosto 2007
Cochranella buenaventura sp. nov.
A NEW SPECIES OF GLASSFROG (CENTROLENIDAE) FROM THE SOUTHERN ANDEAN FOOTHILLS ON THE WEST ECUADORIAN REGION
Abstract.--Cochranella buenaventura sp. nov. is described from the southern foothills of the Cordillera Occidental, Andes of Ecuador. The new species inhabits the Seasonal Foothill Evergreen forests of the province of El Oro, in the West Ecuadorian biogeographic region. This species is distinguished from other species of glassfrogs by having a truncate snout in dorsal and lateral views, reduced webbing between fingers, absence of guanophores on the digestive visceral peritonea, but present on the renal capsule, absence of humeral spine, green dorsum in life with scattered pale yellow spots, bright yellow hands and feet discs, and moderate body size (20.9-22.4 mm snout-vent length in adult males).
Cita / Citation: Cisneros-Heredia, D. F. & M. H. Yánez-Muñoz. 2007. A NEW SPECIES OF GLASSFROG (CENTROLENIDAE) FROM THE SOUTHERN ANDEAN FOOTHILLS ON THE WEST ECUADORIAN REGION. South American Journal of Herpetology 2(1): 1-10.
Mas información: http://www.cisneros-heredia.org/public
Abstract.--Cochranella buenaventura sp. nov. is described from the southern foothills of the Cordillera Occidental, Andes of Ecuador. The new species inhabits the Seasonal Foothill Evergreen forests of the province of El Oro, in the West Ecuadorian biogeographic region. This species is distinguished from other species of glassfrogs by having a truncate snout in dorsal and lateral views, reduced webbing between fingers, absence of guanophores on the digestive visceral peritonea, but present on the renal capsule, absence of humeral spine, green dorsum in life with scattered pale yellow spots, bright yellow hands and feet discs, and moderate body size (20.9-22.4 mm snout-vent length in adult males).
Cita / Citation: Cisneros-Heredia, D. F. & M. H. Yánez-Muñoz. 2007. A NEW SPECIES OF GLASSFROG (CENTROLENIDAE) FROM THE SOUTHERN ANDEAN FOOTHILLS ON THE WEST ECUADORIAN REGION. South American Journal of Herpetology 2(1): 1-10.
Mas información: http://www.cisneros-heredia.org/public
07 agosto 2007
Atractus modestus
NUEVA PUBLICACION / NEW PUBLICATION:
Rediscovery and redescription of the rare Andean snake Atractus modestus
Abstract.--Atractus modestus was described based on a single specimen from western Ecuador, and since its original description there have been no further records for this species. During the examination of Ecuadorian collections, we found additional specimens of this poorly known snake. In this paper, we redescribe the holotype of A. modestus, describe the hemipenis and report new specimens, localities, and data on meristic and morphometric variation in the species. We also compare and diagnose this species from all others members of this highly diverse genus.
Cita / Citation: Passos, P., D. F. Cisneros-Heredia & D. Salazar-V. 2007. Rediscovery and redescription of the rare Andean snake Atractus modestus. Herpetological Journal 17: 1-6.
Mas información: http://www.cisneros-heredia.org/public
Rediscovery and redescription of the rare Andean snake Atractus modestus
Abstract.--Atractus modestus was described based on a single specimen from western Ecuador, and since its original description there have been no further records for this species. During the examination of Ecuadorian collections, we found additional specimens of this poorly known snake. In this paper, we redescribe the holotype of A. modestus, describe the hemipenis and report new specimens, localities, and data on meristic and morphometric variation in the species. We also compare and diagnose this species from all others members of this highly diverse genus.
Cita / Citation: Passos, P., D. F. Cisneros-Heredia & D. Salazar-V. 2007. Rediscovery and redescription of the rare Andean snake Atractus modestus. Herpetological Journal 17: 1-6.
Mas información: http://www.cisneros-heredia.org/public
Hyalinobatrachium ruedai
NUEVA PUBLICACION / NEW PUBLICATION:
Primer registro de Hyalinobatrachium ruedai en Ecuador con notas sobre otras especies congenericas
Resumen.--Reportamos el primer registro de Hyalinobatrachium ruedai para Ecuador, extendiendo su distribución desde Colombia hasta los flancos centrales de la Cordillera Oriental de Ecuador. El análisis del material adicional y de la serie tipo de H. ruedai nos permite discutir su variación morfológica y de coloración. Algunas características previamente conocidas solo para taxones del Macizo Guayanés (ej. iris bicolor) son reportadas en H. ruedai. Se recomienda no subdividir al grupo H. fleischmanni en subgrupos. Comentamos el estado taxonómico de algunas especies de la región Pacífica de Ecuador, caracterizamos a H. petersi y reconocemos que actualmente bajo los nombres Hyalinobatrachium fleischmanni y H. valerioi hay al menos tres especies aún no descritas.
Abstract.--We report the first record of Hyalinobatrachium ruedai for Ecuador, extending its distribution range from Colombia to the central slopes of the Cordillera Oriental of Ecuador. Analysis of additional material and the type series of H. ruedai let us to comment on its morphological and coloration variation. Some characters previously known just from taxa of the Guiana Shield (eg. bicolored iris) are reported from H. ruedai. We suggest to maintain undivided the H. fleischmanni group, without recognition of subgroups. We comment on the taxonomic status of some species from the Pacific region of Ecuador, characterizing H. petersi, and recognizing that currently under the names Hyalinobatrachium fleischmanni y H. valerioi there are at least three new species.
Cita / Citation: Cisneros-Heredia, D. F. & R. W. McDiarmid. 2007. Primer registro de Hyalinobatrachium ruedai en Ecuador con notas sobre otras especies congenericas. Herpetotropicos 3 (1): 21-28.
Mas información: http://www.cisneros-heredia.org/public
Primer registro de Hyalinobatrachium ruedai en Ecuador con notas sobre otras especies congenericas
Resumen.--Reportamos el primer registro de Hyalinobatrachium ruedai para Ecuador, extendiendo su distribución desde Colombia hasta los flancos centrales de la Cordillera Oriental de Ecuador. El análisis del material adicional y de la serie tipo de H. ruedai nos permite discutir su variación morfológica y de coloración. Algunas características previamente conocidas solo para taxones del Macizo Guayanés (ej. iris bicolor) son reportadas en H. ruedai. Se recomienda no subdividir al grupo H. fleischmanni en subgrupos. Comentamos el estado taxonómico de algunas especies de la región Pacífica de Ecuador, caracterizamos a H. petersi y reconocemos que actualmente bajo los nombres Hyalinobatrachium fleischmanni y H. valerioi hay al menos tres especies aún no descritas.
Abstract.--We report the first record of Hyalinobatrachium ruedai for Ecuador, extending its distribution range from Colombia to the central slopes of the Cordillera Oriental of Ecuador. Analysis of additional material and the type series of H. ruedai let us to comment on its morphological and coloration variation. Some characters previously known just from taxa of the Guiana Shield (eg. bicolored iris) are reported from H. ruedai. We suggest to maintain undivided the H. fleischmanni group, without recognition of subgroups. We comment on the taxonomic status of some species from the Pacific region of Ecuador, characterizing H. petersi, and recognizing that currently under the names Hyalinobatrachium fleischmanni y H. valerioi there are at least three new species.
Cita / Citation: Cisneros-Heredia, D. F. & R. W. McDiarmid. 2007. Primer registro de Hyalinobatrachium ruedai en Ecuador con notas sobre otras especies congenericas. Herpetotropicos 3 (1): 21-28.
Mas información: http://www.cisneros-heredia.org/public
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