Duellmanohyla
Duellmanohyla lay eggs in mountain streams where the water moves fast. Because they swim, they have some webbing on their front feet and on some of the toes of their back feet. Scientists have not seen any of the frogs lay eggs, but they think the female frogs lay eggs on the plants above the water.  Then the tadpoles fall into the stream. The tadpoles have dangling oral discs that they use to hold on to the bottom of the stream.