This species is known only from the Serra do Mar in the states of São Paulo and Santa Catarina, in southern Brazil. It occurs up to 1,000m asl. Records from the state of Paraná require confirmation.
Habitat and Ecology
This species is associated with fast-flowing streams in primary and old secondary forest. The larvae develop out of the water in the splash zone of waterfalls.
It is locally common in Santa Catarina State, where the populations appear to be stable where suitable habitat survives. There is little recent information from São Paulo State.
The major threats to the known sites for this species are probably related to habitat loss due to tourism, dam construction and human settlement. A wider set of threats, such as agricultural development and logging, might impact other sites where this species has not yet been discovered.
It occurs in some protected areas, but not in any that are adequately managed.
Paulo Garcia, Vanessa Verdade 2004. Cycloramphus izecksohni. In: IUCN 2014