Frogs in "Sylvirana" are mostly medium sized with strong bodies. They have markings behind their eyes like frogs in "Papurana". Their upper lips are gray, off-white, or mottled in color. The back is shagreened with spicules, or it can be warty. The folds of skin on the sides of their backs are medium sized and well developed. They are either pale or the same color as the back. The sides of their bodies have dark coloration below ridges that fade to pale and have dark spots with clear edges. Male frogs have paired vocal sacs that may be inside their bodies or outside their bodies.