Redescripción de Cochranella megista (Rivero, 1985) y ampliación de la distribución de nueve ranas de cristal (Anura: Centrolenidae) en Colombia

Abstract

En 1980, Marco Antonio Serna colectó dos ejemplares de una inusual rana de cristal en el noroccidente del Departamento de Antioquia, Colombia. Dichos ejemplares exhibían algunas características sobresalientes entre las cuales llamó la atención su gran tamaño. Aparentemente solo uno de estos ejemplares (el holotipo hembra) fue enviado para su identificación a Juan A. Rivero, quien la describió bajo el nombre de Centrolenella megistra (Rivero, 1985). Sin embargo, escasa información concerniente a la especie ha sido reportada en la literatura desde la descripción original, más allá de su re-asignación genérica. En este trabajo, presentamos una redescripción de esta especie, con una adecuada delimitación de sus características, asignamos un neotipo, presentamos algunos datos sobre su distribución e historia natural y justificamos el cambio de su epíteto específico de "megistra" a "megista". Adicionalmente, reportamos algunas localidades que amplían los rangos de distribución de nueve especies de ranas de cristal de Colombia, Hyalinobatrachium fleischmanni, Centrolene andinum C. petrophilum, C. hybrida, C. buckleyi, C. quindianum, Cochranella adiazeta, C. daidalea y C. susatamai.<br>In 1980, Marco Antonio Serna collected two individuals of an unusual glassfrog from Departamento de Antioquia, Colombia. These specimens exhibit some peculiar characteristics, including a large body size. It seems that only one of these specimens was sent to Juan A. Rivero for its identification; Rivero (1985) described the species under the name of Centrolenella megistra. Herein, we redescribe and designate a neotype of Cochranella megista (Rivero, 1985). Also, we justify the change of its specific epithet "megistra" to "megista", according to the original intention of Rivero. Finally, we report new localities that extend the distributional ranges of Hyalinobatrachium fleischmanni, Centrolene andinum C. petrophilum, C. hybrida, C. buckleyi, C. quindianum, Cochranella adiazeta, C. daidalea and C. susatamai in Colombia

Amphibians from Serrania de Las Quinchas, in the mid-Magdalena river valley, Colombia

“…Only 1 individual was found, close to a stream in tropical humid forest at 890 m (Station 3). This species is endemic to the Sub Andean and Andean Forests of the Western Slope of the Cordillera Oriental (Rada and Guayasamin 2008). And this is the first record of the species in the department of Boyacá, since it was only reported previously on the mid Magdalena region, on the eastern slope of the Cordillera Central in the Cundinamarca, Santander and Tolima, at elevations between 1120 and 2060 m (Bernal and Lynch 2008).…”

Phylogenetic position of “Cochranella” megista (Anura: Centrolenidae) and first records for Ecuador

“…018-2017-IC-FAU-DNB/MAE and No. MAE-DNB-CM-2018-0105 by the Ministerio del mbiente de c ador e identification of preserved specimens as Cochranella" megista was based on the following diagnostic traits: large body size (SVL in adults > 30 mm), green dorsum with black spots, lack of humeral spines, and moderate webbing between Fingers III and IV (Rada and Guayasamin 2008); no ot er assfro from acific s opes of t e ndes of Ecuador and Colombia has the aforementioned combination of traits. The study was carried out in accordance with the guidelines for use of live amp ibians and repti es in fie d and ab researc (Beaupre et al 2004), compiled by the American Society of Ichthyologists and Herpetologists (ASIH), the Herpetologists' League (HL), and the Society for the Study of Amphibians and Reptiles (SSAR).…”

“…One such species is "Cochranella" megista, a relatively large assfro c rrent no n on from t e acific slopes of the Colombian Andes, from the Departments of Antioquia, Chocó, Risaralda, and Valle del Cauca at elevations of 1,400-2,100 m a.s.l. (Rivero 1985, Acosta-Galvis 2000, Rada and Guayasamin 2008, IUCN SSC Amphibian Specialist Group 2017). Little is known about this taxon with only 12 observations reported since the type specimen and Neotype (MHUA 5851;Rada and Guayasamin 2008) were collected in 1980 (Rivero 1985).…”

“…(Rivero 1985, Acosta-Galvis 2000, Rada and Guayasamin 2008, IUCN SSC Amphibian Specialist Group 2017). Little is known about this taxon with only 12 observations reported since the type specimen and Neotype (MHUA 5851;Rada and Guayasamin 2008) were collected in 1980 (Rivero 1985). A photo record of C. megista on iNaturalist (2012) corresponds to a fie d observation made d rin t e co ection effort that yielded the ICN specimens in the 1990s (M. Rada pers.…”

Uncovering hidden specific diversity of Andean glassfrogs of theCentrolene buckleyispecies complex (Anura: Centrolenidae)

“…The taxon Centrolene buckleyi ( Boulenger, 1882 ) has a large distribution inhabiting montane primary and secondary forests in high tropical Andean zones (1,900–3,300 msnm), as well as inter-Andean scrubland and Páramo environments of Colombia, Ecuador, and northern Peru ( Duellman & Wild, 1993 ; Guayasamin et al, 2006 ; Rada & Guayasamin, 2008 ; Guayasamin & Funk, 2009 ) ( Fig. 1 ).…”