Two new syntopic species of glassfrogs (Amphibia, Centrolenidae, Centrolene ) from the southwestern Andes of Ecuador.
PeerJ(2023)
Abstract
We describe two new species of glassfrogs of the genus living in syntopy at La Enramada, province of Azuay, southwestern Ecuador. They were found in a small creek in montane evergreen forests at 2,900 m elevation. The first new species is distinguished from all other members of the genus by having the following combination of characters: dentigerous process of vomer absent; sloping snout in lateral view; thick, white labial stripe and a faint white line between the lip and anterior ¼ of body; humeral spine in adult males; parietal peritoneum covered by iridophores, visceral peritonea translucent (except pericardium); ulnar and tarsal ornamentation; dorsal skin shagreen with dispersed warts; uniform green dorsum with light yellowish green warts; and green bones. The new species is remarkable by being sister to a species from the opposite Andean versant, . The second new species is distinguished from all other by having the following combination of characters: dentigerous process of vomer absent; round snout in lateral view; thin, yellowish labial stripe with a row of white tubercles between the lip and arm insertion, and a yellowish line between arm insertion and groin; uniform green dorsum; humeral spine in adult males; parietal peritoneum covered by iridophores, visceral peritonea translucent (except pericardium); dorsal skin shagreen with dispersed spicules; ulnar and tarsal ornamentation; and green bones. The second new species is sister to and an undescribed species of from southeastern Ecuador. Based on nuclear and mitochondrial DNA sequences, we present a new phylogeny for and comment on the phylogenetic relationships inside the genus.
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Key words
southwestern andes,new syntopic species,ecuador,glassfrogs,centrolenidae
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