Cycloramphus asper is a species of frog in the family Cycloramphidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest and rivers.
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: CS1 maint: multiple names: authors list (link) Cycloramphus asper is a species of frog in the family Cycloramphidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest and rivers.