Thursday, October 27, 2022

[Herpetology • 2022] Chiasmocleis abofoa • A New Species of Chiasmocleis Méhely, 1904 (Anura: Microhylidae) from the Peruvian Amazonia


Chiasmocleis abofoa 
Rojas-Padilla, Gagliardi-Urrutia, Rios-Alva & Castroviejo-Fisher, 2022

We describe a new species of Chiasmocleis from the Amazonian forest of Peru. The new species is characterized by its medium size (snout-to-vent length = 18.2–20.8 mm in females, and 16.5 mm in one male), hands and feet with slightly developed fridges in females (more developed in male), and presence of a femoral line in all individuals. We also infer its phylogenetic position using DNA sequences of fragments of the mitochondrial genes for 16S rRNA and cytochrome oxidase subunit 1 (COI), and describe the mineralized skeleton through 3D models generated by computed tomography (CT-scan). Based on our results, we discuss the variation of some osteological characters traditionally used in the systematics of the genus.

Keywords: Amphibia, CT-scan, morphology, osteology, phylogeny, subgenus, taxonomy 

Holotype adult female of Chiasmocleis abofoa sp. nov.  (CRBIIAP 2507) in life.
Dorsolateral (A), ventral (B), and dorsal (C) views.

 Adult male paratype of Chiasmocleis abofoa sp. nov. (CRBIIAP 2506) in life.
 Dorsolateral (A), ventral (B), and dorsal (C) views.

  Localization of the type locality of Chiasmocleis abofoa sp. nov. 

  Individuals of Chiasmocleis abofoa sp. nov. on a pond in their natural habitat.
Two females non-collected females (A) and the male paratype, CRBIIAP 2506, (B) floating near to palm tree leaves.

Chiasmocleis abofoa sp. nov.

Omar Rojas-Padilla, Giussepe Gagliardi-Urrutia, Ehiko J. Rios-Alva and Santiago Castroviejo-Fisher. 2022. A New Species of Chiasmocleis Méhely, 1904 (Anura: Microhylidae) from the Peruvian Amazonia. Zootaxa. 5195(1); 24-50. DOI: 10.11646/zootaxa.5195.1.2