RT Journal Article T1 A tale of two bellies : systematics of the oval frogs (Anura: Microhylidae: Elachistocleis) A1 Novaes e Fagundes, Gabriel A1 Lyra, Mariana L. A1 Loredam, Vinicius S. A. A1 Carvalho, Thiago R. A1 Haddad, Celio F. B. A1 Rodrigues, Miguel T. A1 Baldo, Diego A1 Barrasso, Diego A. A1 Loebmann, Daniel A1 Avila, Robson W. A1 Brusquetti Estrada, Francisco Adolfo A1 Prudente, Ana L. C. A1 Wheeler, Ward C. A1 Orrico, Victor Goyannes Dill A1 Peloso, Pedro AB Oval frogs (Elachistocleis) have a broad geographic distribution covering nearly all of South America and parts of Central America. They also have a large inter- and intraspecific variation of the few morphological characters commonly used as diagnostic traits among species of the genus. Based on molecular data, we provide the most complete phylogeny of Elachistocleis to date, and explore its genetic diversity using distance-based and tree-based methods for putative species delimitation. Our results show that at least two of the most relevant traditional characters used in the taxonomy of this group (belly pattern and dorsal median white line) carry less phylogenetic information than previously thought. Based on our results, we propose some synonymizations and some candidate new species. This study is a first major step in disentangling the current systematics of Elachistocleis. Yet, a comprehensive review of morphological data is needed before any new species descriptions can be properly made. PB Oxford University Press SN 0024-4082 YR 2022 FD 2022-08-24 LK http://hdl.handle.net/20.500.14066/4284 UL http://hdl.handle.net/20.500.14066/4284 LA eng NO Gabriel Novaes-e-Fagundes, Mariana L Lyra, Vinicius S A Loredam, Thiago R Carvalho, Célio F B Haddad, Miguel T Rodrigues, Diego Baldo, Diego A Barrasso, Daniel Loebmann, Robson W Ávila, Francisco Brusquetti, Ana L C Prudente, Ward C Wheeler, Victor Goyannes Dill Orrico, Pedro Peloso, A tale of two bellies: systematics of the oval frogs (Anura: Microhylidae: Elachistocleis), Zoological Journal of the Linnean Society, Volume 197, Issue 3, March 2023, Pages 545–568, https://doi.org/10.1093/zoolinnean/zlac057 NO Corresponding author: Victor Goyannes Dill Orrico; victordill@gmail.com NO Consejo Nacional de Ciencia y Tecnología DS MINDS@UW RD 22-jul-2024