26 March 2024 | Stephen Mahony1,2, Rachunli G. Kamei2,3, Rafe M. Brown4, Kin Onn Chan4
The paper "Unnecessary Splitting of Genus-Level Clades Reduces Taxonomic Stability in Amphibians" by Stephen Mahony, Rachunliu G. Kamei, Rafe M. Brown, and Kin Onn Chan critically evaluates the practice of splitting genus-level clades in amphibians, particularly in four families: Dicroglossidae, Microhylidae, Ranidae, and Rhacophoridae. The authors argue that many of these splits are based on weak phylogenetic evidence and problematic diagnostic characters, leading to taxonomic instability and confusion. They provide case studies to illustrate the issues, such as the splitting of *Phrynoglossus* into *Occidozyga*, *Oreobatrachus*, and *Frethia* in Dicroglossidae, and *Nanohyla* from *Microhyla* in Microhylidae. The authors advocate for the use of the subgenus rank to address these issues, suggesting that it can provide informative partitions for research without compromising taxonomic stability. They emphasize the need for taxonomists to consider the practical implications of their work on downstream applications, such as conservation and education, and to avoid unnecessary taxonomic inflation. The paper concludes by highlighting the importance of robust and critical nomenclatural frameworks to guide future taxonomic decisions.The paper "Unnecessary Splitting of Genus-Level Clades Reduces Taxonomic Stability in Amphibians" by Stephen Mahony, Rachunliu G. Kamei, Rafe M. Brown, and Kin Onn Chan critically evaluates the practice of splitting genus-level clades in amphibians, particularly in four families: Dicroglossidae, Microhylidae, Ranidae, and Rhacophoridae. The authors argue that many of these splits are based on weak phylogenetic evidence and problematic diagnostic characters, leading to taxonomic instability and confusion. They provide case studies to illustrate the issues, such as the splitting of *Phrynoglossus* into *Occidozyga*, *Oreobatrachus*, and *Frethia* in Dicroglossidae, and *Nanohyla* from *Microhyla* in Microhylidae. The authors advocate for the use of the subgenus rank to address these issues, suggesting that it can provide informative partitions for research without compromising taxonomic stability. They emphasize the need for taxonomists to consider the practical implications of their work on downstream applications, such as conservation and education, and to avoid unnecessary taxonomic inflation. The paper concludes by highlighting the importance of robust and critical nomenclatural frameworks to guide future taxonomic decisions.