27-28 mm. Dorsal colour variable: uniformly brown, or with partly or almost entirely green back. Flanks black or partly greenish, with relatively large green flank blotches. No sharply delimited rostral stripes and no flashmarks. Iris with light pigment in its upper part. Ventrally black with blue spots and without red colour. Throat without continuous horseshoe marking (Glaw and Vences 2007).
Similar species: M. pulchra and M. baroni differ by reddish ventral colour (Glaw and Vences 2007).
Taken with permission from Glaw and Vences (2007).
The Guibé's Mantella (Mantella nigricans) is a species of frog in the family Mantellidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist lowland forests and rivers. It is threatened by habitat loss.
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Anjanaharibe, Mananara-Nord, Manongarivo (1240 m elevation), Marojejy, Tsararano.It occurs between 100-1,240 m asl on the ground along streams in rainforest and forest edge, but not in severely degraded habitats (Raxworthy and Andreone 2008).
Habits: Along streams in primary rainforest. Active during the day on the ground (Glaw and Vences 2007). Breeding takes place in streams, where the larvae develop (Raxworthy and Andreone 2008).
Calls: Series of short single-click notes (Glaw and Vences 2007).
Locally abundant but decreasing. It occurs in several protected areas (Raxworthy and Andreone 2008).