Phantasmarana massarti is a species of frog in the family Hylodidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest and rivers. It was formerly placed in the genus Megaelosia, but was reclassified to Phantasmarana in 2021. References Phantasmarana Endemic fauna of Brazil Amphibians of Brazil Taxonomy articles created by Polbot Amphibians described in 1930