Phantasmarana

Phantasmarana is a genus of frogs in the family Hylodidae. The genus is endemic to the Atlantic Forest of southeastern Brazil.

Members of this genus are associated with fast-flowing rivers. They are difficult to collect because they are easily disturbed and plunge into the torrential waters. Their teeth of are fanglike and larger than those of their close relatives. This might be associated with their predatory habits: at least two species are known prey on small vertebrates as well as invertebrates. The tadpoles are aquatic. Phantasmarana are relatively large frogs, with adults attaining lengths up to in snout–vent length.