M 40-45 mm, F 40-45 mm. Weakly expressed outer dorsolateral folds, no inner dorsolateral folds, interocular tubercles, supraocular spines, nor heel tubercles. Dorsal skin smooth. Colouration variable but most individuals with a distinct light stripe along the upper lip.
Similar species: Gephyromantis redimitus and G. cornutus also call along brooks in forest, but have single subgular vocal sacs and mostly two black tubercles between the eyes. Tibiotarsal articulation of G. redimitus reaches only beyond the eye. G. leucomaculatus has a smaller inner metatarsal tubercle, lacks the light band along the upper lip, and calling males are not found along brooks. It is especially similar to G. zavona.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar, Mayotte
Andapa, Andrakata, Benavony, Lokobe, Manongarivo, Marojejy, Montagne d’ Ambre, Nosy Be, Tsararano, Tsaratanana (Andampy campsite).
It occurs from near sea level up to 900m (Raxworthy and Vences 2008).
Life History, Abundance, Activity, and Special Behaviors
Habits: Males call at night from the vegetation, 0.5-2 m above the ground, close to streams. In intact and degraded rainforest as well as in secondary vegetation.
Calls: A long regular series of unharmonious notes.
Trends and Threats
This species is listed as least concern in view of its wide distribution, tolerance of a degree of habitat modification, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category (Raxworthy and Vences 2008).
Taken with permission from Glaw and Vences (2007).
Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
Raxworthy, C. and Vences, M. (2008). Gephyromantis granulatus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 18 March 2009.
Written by Miguel Vences and Frank Glaw (m.vences AT tu-bs.de), Assistant Professor and Curator of Vertebrates at the Institute for Biodiversity and Ecosystem Dynamics in the Zoological Museum at the University of Amsterdam
First submitted 2000-11-27
Edited by Catherine Aguilar (2009-04-07)
Species Account Citation: AmphibiaWeb 2009 Gephyromantis granulatus <http://amphibiaweb.org/species/4601> University of California, Berkeley, CA, USA. Accessed Sep 23, 2017.
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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 23 Sep 2017.
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