Abstract
We describe two new species of semiarboreal frogs from the northern central east coast of Madagascar which occur syntopically, at least on the island of Nosy Boraha. The two species are morphologically closest to Blommersia wittei, but differ in advertisement calls and molecular phylogenetic relationships. One of the new species has a remarkable femoral gland structure, as these are shifted towards the distal part of the thigh, close to the knee joint. The new species are apparently microendemic to a small stretch of Madagascar's east coast and have so far not been found at higher elevations. Since both new species are tolerant of habitat disturbance and occur in anthropogenically altered habitats, such as plantations and villages, we propose an IUCN threat status of Least Concern despite their restricted extent of occurrence.
Published Version
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