Abstract
Anomaloglossus praderioi was originally described as Colostethus praderioi by E. La Marca in 1998 on the basis of two male specimens. The present paper provides a redescription of the species on the basis of new material from Maringma Tepui in Guyana and an additional specimen from Sierra de Lema in Venezuela. The redescription includes descriptions of the tadpole and vocalisation. Anomaloglossus praderioi is a medium-sized species mainly distinguished from its known congeners in having Fingers I, II and IV equal in length, the tip of Finger IV barely reaching the base of the distal subarticular tubercle on Finger III when fingers are adpressed, Fingers II and III with preaxial keel-like lateral folds, toes basally webbed with folded flaplike fringing except on Toes IV-V, symmetrical cloacal tubercles present, thin pale dorsolateral stripe present from tip of snout to tip of urostyle, ventrolateral stripe inconspicuous, never straight, oblique lateral stripe absent, throat in male grey to very dark grey, almost solid black, with black blotches, throat in female bright orange, almost immaculate. The tadpole is dark brown to black, exotrophic, benthic, LTRF 2(2)/3. The advertisement call consists of long trains of a single note repeated at a rate of 61-76 notes/min with a dominant frequency ranging from 3,562 to 3,856 Hz. The species is reported from eastern Venezuela and western Guyana and inhabits montane medium-canopy forest at elevations between 1,310-1,950 m above sea level.
Highlights
The genus Anomaloglossus currently contains 23 species, of which 20 are cis‐Andean and three are trans‐Andean
Spec‐ imens were deposited in the collections of the Institut Royal des Sciences Naturelles de Belgique (IRSNB), tissue samples were deposited in the Amphibian Evo‐ lution Lab, Biology Department, Vrije Universiteit Brussel
The problem is exacerbated when authors do not examine holotypes and faithfully follow original descriptions as a basis for diagnosing new species
Summary
The genus Anomaloglossus currently contains 23 species, of which 20 are cis‐Andean and three are trans‐Andean. The majority of taxa have restricted distributions in the Guiana Shield. The monophyly of the genus is supported by the presence of the me‐ dian lingual process (Grant et al, 2006). The few trans‐Andean species are placed in the genus Anomaloglossus due to the synapomorphic presence of the median lingual process, but they have not yet been included in quantitative phylogenetic analyses be‐ cause of lack of material (Grant et al, 2006; Myers & Grant, 2009). Anomaloglossus species are fascinat‐ ing animals displaying interesting diversity in their reproductive biology.
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