Paramacrodon Frog

The paramacrodon frog, also called the masked swamp frog, has long slender hind legs and unexpanded tips on its fingers and toes. The back is rough-skinned and uniformly brown, a black mask covers most of the tympanum in many individuals, and the abdomen is yellow. These characters distinguish it from the larger, more robust Malesian frog despite both being forest-dwelling members of Limnonectes (Singapore National Parks Board).

It is nocturnal and associated with freshwater swamp forest, where observers usually find it along the banks of small streams. Ants and spiders are recorded prey, its larval stages remain undescribed, and field accounts note that it does not appear to call. Published range summaries cover the Malay Peninsula, Sumatra, Borneo and Natuna Besar but not Sulawesi, so the species' inclusion in this regional checklist needs verification (Singapore National Parks Board; Lim 1989).