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
27 agosto 2007
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
29 mayo 2007
Cochranella amelie sp. nov.
NUEVA PUBLICACION / NEW PUBLICATION:
An enigmatic new species of Glassfrog (Amphibia: Anura: Centrolenidae) from the Amazonian Andean slopes of Ecuador
Abstract.--We describe a new species of frog of the family Centrolenidae, Cochranella amelie n. sp., from the central Amazonian Andean slopes, collected at the Oglan River, Province of Pastaza, Ecuador. This new species shows a very unusual combination of characters (lavender dorsum in preservative, absence of a humeral spine in adult males, transparent parietal peritoneum, white visceral peritonea, and bulbous liver). The relationships of this new species of Glassfrog are uncertain, and its assignment to Cochranella is preliminary.
Resumen.--Describimos una nueva especie de rana de la familia Centrolenidae, Cochranella amelie n. sp., de los flancos Andinos Amazónicos centrales, colectada en el Río Oglán, Provincia de Pastaza, Ecuador. Esta nueva especie presenta una muy inusual combinación de caracteres (dorso de color lavanda en preservante, ausencia de espina humeral en machos adultos, peritoneo parietal transparente, peritoneos viscerales blancos, e hígado bulboso). Las relaciones de esta nueva especie de Rana de Cristal son inciertas y su asignación a Cochranella es preliminar.
Cita / Citation: Cisneros-Heredia, D. F. & P. Meza-Ramos. 2007. An enigmatic new species of Glassfrog (Amphibia: Anura: Centrolenidae) from the Amazonian Andean slopes of Ecuador. Zootaxa 1485: 33-41.
Mas información: http://www.cisneros-heredia.org/public
An enigmatic new species of Glassfrog (Amphibia: Anura: Centrolenidae) from the Amazonian Andean slopes of Ecuador
Abstract.--We describe a new species of frog of the family Centrolenidae, Cochranella amelie n. sp., from the central Amazonian Andean slopes, collected at the Oglan River, Province of Pastaza, Ecuador. This new species shows a very unusual combination of characters (lavender dorsum in preservative, absence of a humeral spine in adult males, transparent parietal peritoneum, white visceral peritonea, and bulbous liver). The relationships of this new species of Glassfrog are uncertain, and its assignment to Cochranella is preliminary.
Resumen.--Describimos una nueva especie de rana de la familia Centrolenidae, Cochranella amelie n. sp., de los flancos Andinos Amazónicos centrales, colectada en el Río Oglán, Provincia de Pastaza, Ecuador. Esta nueva especie presenta una muy inusual combinación de caracteres (dorso de color lavanda en preservante, ausencia de espina humeral en machos adultos, peritoneo parietal transparente, peritoneos viscerales blancos, e hígado bulboso). Las relaciones de esta nueva especie de Rana de Cristal son inciertas y su asignación a Cochranella es preliminar.
Cita / Citation: Cisneros-Heredia, D. F. & P. Meza-Ramos. 2007. An enigmatic new species of Glassfrog (Amphibia: Anura: Centrolenidae) from the Amazonian Andean slopes of Ecuador. Zootaxa 1485: 33-41.
Mas información: http://www.cisneros-heredia.org/public
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