A review of the elusive bicolored iris Snouted Treefrogs (Anura: Hylidae:Scinax uruguayus group)

The genus Scinax currently includes more than 120 species, recovered in two major clades, the S. catharinae and the S. ruber clades. The latter comprises 75 species, most of which remain unassigned to any species groups, while 12 are included in the S. rostratus and S. uruguayus groups. In this pape...

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Bibliographic Details
Published in:PloS one 2019-09, Vol.14 (9), p.e0222131
Main Authors: Baldo, Diego, Araujo-Vieira, Katyuscia, Cardozo, Dario, Borteiro, Claudio, Leal, Fernando, Pereyra, Martín O, Kolenc, Francisco, Lyra, Mariana L, Garcia, Paulo C A, Haddad, Célio F B, Faivovich, Julián
Format: Article
Language:English
Subjects:
Amphibians
Animal Distribution
Animals
Anura - anatomy & histology
Anura - classification
Anura - genetics
Argentina
Biology and Life Sciences
Brazil
Cytogenetics
Female
Frogs
Genetic aspects
Larva - anatomy & histology
Male
Medicine and Health Sciences
Methylene blue
Morphology
Morphology (Biology)
New species
People and places
Phenotype
Pigmentation
Scinax
Species Specificity
Vocalization, Animal
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Summary:The genus Scinax currently includes more than 120 species, recovered in two major clades, the S. catharinae and the S. ruber clades. The latter comprises 75 species, most of which remain unassigned to any species groups, while 12 are included in the S. rostratus and S. uruguayus groups. In this paper we present a taxonomic review of the two species currently included in the S. uruguayus group, discussing some putative phenotypic synapomorphies of this group. Although S. pinima and S. uruguayus have been considered as distinct species, this has been based on scant evidence, and several authors doubted of their distinctiveness. Our study of available specimens of S. pinima and S. uruguayus corroborates that both are valid and diagnosable species based on phenotypic evidence. Furthermore, our results show that S. pinima previously known only from its type locality, has a much widespread distribution than previously thought (including the Brazilian states of Paraná, Santa Catarina, and Rio Grande do Sul), which, added to the biological information presented here allows to suggest the removal of this species from the "Data Deficient" IUCN Red List category to "Least Concern". Also, we describe a new species formerly reported as S. aff. pinima and S. uruguayus from NE Argentina and some localities from the Brazilian State of Rio Grande do Sul. All species are diagnosed and characterized using adult and larval morphology, osteology, vocalizations, cytogenetics, and natural history.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0222131