Laboratório de Genética Evolutiva, Instituto de Biología Subtropical "Claudio Juan Bidau" (CONICET-UNaM), Posadas, Misiones, Argentina.
División Herpetología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"-CONICET, Buenos Aires, Argentina.
PLoS One. 2019 Sep 25;14(9):e0222131. doi: 10.1371/journal.pone.0222131. eCollection 2019.
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.
目前,Scinax 属包括 120 多种物种,分为两个主要分支,即 S. catharinae 和 S. ruber 分支。后者包括 75 个物种,其中大多数仍未分配到任何物种群,而 12 个物种属于 S. rostratus 和 S. uruguayus 群。本文对目前属于 S. uruguayus 群的两个物种进行了分类学综述,讨论了该群的一些假定表型同功特征。虽然 S. pinima 和 S. uruguayus 被认为是不同的物种,但这主要基于有限的证据,并且有几位作者怀疑它们的独特性。我们对 S. pinima 和 S. uruguayus 的现有标本的研究证实,这两个物种都是基于表型证据有效且可识别的物种。此外,我们的研究结果表明,以前仅在其模式产地已知的 S. pinima 的分布范围比以前认为的要广泛得多(包括巴西的 Paraná、Santa Catarina 和 Rio Grande do Sul 州),这一发现,加上这里提出的生物学信息,使我们可以建议将该物种从 IUCN 红色名录的“数据不足”类别移至“低危”类别。此外,我们还描述了一个以前被报道为 S. aff. pinima 和 S. uruguayus 的新物种,来自阿根廷东北部和巴西南里奥格兰德州的一些地点。所有物种都通过成体和幼体形态学、骨骼学、发声、细胞学和自然史进行诊断和特征描述。