Madagascar Frog

M 23-24 mm, F 24 mm. Tibiotarsal articulation reaches at least beyond the eye, sometimes slightly beyond snout tip. No webbing between fingers, a trace of webbing between toes. Inner metatarsal tubercle protruding, but smaller than in G. silvanus. Dorsal skin relatively smooth with a number of granules. Dorsally olive greenish to light brown with indistinct brown markings. Iris copper (Glaw and Vences 2007).Taken with permission from Glaw and Vences (2007) and Stuart et al. (2008).

Anjanaharibe, forest near Andranofotsy, Marojejy (Glaw and Vences 2007). It occurs between sea level and 700m asl, in pristine rainforest (Stuart et al. 2008).

Habits: Active during the day among boulders in small rainforest streams. Males were observed calling during the day from hidden positions among such rocks (Glaw and Vences 2007). It is not known whether this species breeds by larval or direct development (Stuart et al. 2008).Calls: A long series of short click notes, each repeated after short variable intervals (Glaw and Vences 2007).

Vulnerable. Considered locally abundant but decreasing. This species is found in three protected areas: Parc National de Marojejy, Parc National de Masoala, and Réserve Spéciale d’Anjanaharibe-Sud. It requires pristine rainforest. The main threat is habitat loss, due to subsistence agriculture and grazing, logging, charcoal manufacture, invasion and spread of eucalyptus, and expanding human settlement (Stuart et al. 2008).

Gephyromantis rivicola, commonly known as the lesser stream Madagascar frog, is a species of frog in the family Mantellidae. It is endemic to Madagascar. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.