The Mask Swamp Frog has long, slender legs. Its toes are not flattened into disks. Skin rough and uniformly brown over back. A black mask covers most of the tympanum.
Nocturnal, insectivores and semi-aquatic, usually seen on banks of small streams.
7 cm SV.
Restricted to a few areas but common.
Malay Peninsula, Borneo, Sumatra and Java.