New Records and an Updated List of Amphibians from Ba Den Mountain, Tay Ninh Province, Vietnam

Ba Den Mountain is one of the highest granitic mountains in southern Vietnam and hosts a great diversity of natural habitats and biodiversity potential. In the decades leading up to 2023, only 12 species of amphibians were recorded living on Ba Den Mountain, indicating an incomplete understanding of the amphibian diversity in the area. In 2023 and 2024, we conducted field trips to survey amphibians on Ba Den Mountain, Tay Ninh Province, Vietnam. Based on morphological examination, this study presents an updated checklist of 19 amphibian species from this area. Nine of them were recorded for the first time in Ba Den Mountain: Glyphoglossus guttulatus, Microhyla butleri, Microhyla mukhlesuri, Micryletta erythropoda, Hylarana montosa, Hylarana erythraea, Chirixalus nongkhorensis, Kurixalus sp., and Theloderma vietnamense. Three frogs were new provincial records: Hylarana montosa, Chirixalus nongkhorensis, and Kurixalus sp. Regarding its conservation status, Glyphoglossus molossus is listed as a Near Threatened species on both the IUCN Red List (2025) and Vietnam Red List of Threatened Species (IEBR 2025). The mountain’s biodiversity is being threatened by tourism development without appropriate conservation measures in place. More surveys and further research are suggested to determine the impact of tourism not only amphibian survival but also on other animal and plant species.