What is riverfrogs?

As an AI language model, I couldn't find any species of frog that is commonly known as "riverfrogs". However, there are various species of frogs that inhabit freshwater habitats such as rivers, streams, and ponds. These frogs are adapted to living in and around water bodies and have unique characteristics to survive in their environment. Some examples of frogs that are commonly found near rivers include green frogs, bullfrogs, and leopard frogs. These frogs play an important role in their ecosystem as predators, prey, and indicators of water quality.