Friday, March 13, 2020

[Herpetology • 2019] Anomaloglossus mitaraka • A New Species of Anomaloglossus (Anura: Aromobatidae) of the stepheni group


Anomaloglossus mitaraka
Fouquet, Vacher, Courtois, Deschamps, Ouboter, Jairam, Gaucher, Dubois & Kok, 2019


Abstract
Anomaloglossus is a species-rich genus of frogs endemic to the Guiana Shield that still harbors several unnamed species. Within the A. stepheni species group (which includes four valid nominal species), A. baeobatrachus has an uncertain taxonomic status, notably because the holotype was an unvouchered specimen depicted in a popular journal. Another member of this group, A. leopardus, was only superficially described, lacking information on the sex of specimens in the type series and on advertisement call. Therefore, these two taxa need clarifications in order to allow the description of the extant undescribed species. In this paper, we redescribe A. baeobatrachus based on newly collected material from the species type locality and provide information about its reproductive ecology. We also provide an amended definition of A. leopardus using newly collected material from its type locality. These two species form a clade along with a third species from the Eastern Guiana Shield, which is also described herein. The reproductive biology of A. baeobatrachus and A. stepheni is very similar. Both species have endotrophic and nidicolous tadpoles, despite being distantly related, suggesting independent evolution of this breeding mode. The new species and A. leopardus, on the other hand, have exotrophic tadpoles.

Keywords: Amphibia, Amazonia, Endemism, Endotrophy, Guiana Shield, Reproductive mode, Taxonomy

Anomaloglossus mitaraka sp. nov. male AF2878 carrying tadpoles to the water. 

Anomaloglossus mitaraka sp. nov. 
Anomaloglossus sp. “Mitaraka” Vacher et al. 2017 

Etymology. The specific epithet is a noun in apposition and refers to the type locality (Mitaraka, French Guiana). 


Antoine Fouquet, Jean-Pierre Vacher, Elodie A. Courtois, Chloé Deschamps, Paul Ouboter, Rawien Jairam, Philippe Gaucher, Alain Dubois and Philippe J.R. Kok. 2019. A New Species of Anomaloglossus (Anura: Aromobatidae) of the stepheni group with the Redescription of A. baeobatrachus (Boistel and de Massary, 1999), and An Amended Definition of A. leopardus Ouboter and Jairam, 2012. Zootaxa. 4576(3); 439-460. DOI: 10.11646/zootaxa.4576.3.2

Chez les grenouilles, s’hybrider en ayant des modes de reproduction distincts c’est possible !

Antoine Fouquet, Berengère Ferrier, Jordi Salmona, et al., 2019Phenotypic and Life-history Diversification in Amazonian Frogs despite Past Introgressions. Molecular Phylogenetics and Evolution. 130; 169-180. DOI: 10.1016/j.ympev.2018.09.010