Rhombophryne guentherpetersi (Guibé 1974)

A medium-sized terrestrial microhylid, 32-35 mm in length. Colouration in life is unknown. In preservative, the colouration is uniformly light to reddish brown, with dark, sometimes longitudinal, spots on the flanks. Venter light, with indistinct darker markings. Skin on the back is more or less granular. Tympanum rather indistinct, about 1/3-2/5 of eye diameter. Tibiotarsal articulation reaches the insertion of the arm. Fingertips are not enlarged and finger 2 is shorter than finger 4. Hands and feet are both without webbing. Similar Species: Plethodontohyla tuberata has a more granular dorsal skin. Rhombophryne testudo has short barbels around the lower lip.For references in the text, see here

Terra Typica: Tsaratanana mountains (2600 m altitude).

Call, eggs and tadpoles are unknown.