M 32-34 mm, F 38-41 mm. A relatively large Brygoomantis from north-western Madagascar. Tibiotarsal articulation reaches the eye. Hand without webbing, foot webbing 1(0.5-0), 2i(1), 2e(0-0.5), 3i(1-2), 3e(0-1), 4i(1.5-2), 4e(1-1.5), 5(0). Terminal discs of fingers and toes slightly enlarged. Dorsal skin coarsely granular, with weakly developed dorsolateral folds. Colour dorsally brown, typically rather uniform, sometimes with a few dark markings or a light vertebral band or stripe. Venter dirty whitish with brown pigment, especially on the chest. Males with distinct femoral glands, yellowish in breeding specimens, and a weakly distensible single subgular vocal sac.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar
Ambilobe, Ankarafantsika (Ampijoroa, Antsiloky, Lac Tsimaloto), Berara forest, Lokobe, Manongarivo, Nosy Be. It occurs from sea level to 1,600m asl in slow-flowing streams of rainforest, heavily degraded areas, and open swampy areas. It also inhabits agricultural land (Nussbaum and Vences 2008).
Life History, Abundance, Activity, and Special Behaviors
Habits: Found along streams and in swamps. Males call from hidden positions during the day and often from more open sites on the stream border or in the stream at night. Eggs are deposited in the leaf litter or on rocks next to the water, tadpoles are flushed into the stream after hatching and develop there.
Calls: A series of 4-5 pulsed notes of low intensity.
Breeding takes place in slow-flowing streams (Nussbaum and Vences 2008).
Trends and Threats
It occurs in many protected areas (Nussbaum 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.
Nussbaum, R. and Vences, M. (2008). Mantidactylus ulcerosus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 29 April 2009.
Originally submitted by: Miguel Vences and Frank Glaw (first posted 2000-11-30)
Edited by: Henry Zhu (2009-05-06)
Species Account Citation: AmphibiaWeb 2009 Mantidactylus ulcerosus <https://amphibiaweb.org/species/4628> University of California, Berkeley, CA, USA. Accessed Jun 9, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 9 Jun 2023.
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