Pará Thin-toed Frog

The adult male frog measures 99-129 mm in snout-vent length and the adult female frog 118-140 mm. The dorsum is dark with marks on it. There are dark triangles on the lips, sometimes touching the eyes.

Scientists have observed this frog in primary, closed-canopy rainforest. They have also been observed in forests that have undergone some selective logging. Scientists have reported these frogs in protected areas, including Tapajos National Forest.

Scientists believe this frog builds a foam nest for its eggs, like its congeners. After the eggs hatch, the tadpoles are washed into bodies of water.