Extremely small, M 10-11 mm. Tympanum rather indistinct, about 2/5-3/4 of eye diameter. Tibiotarsal articulation reaches the tympanum. Fingers and toes extremely reduced, only one finger and three toes clearly recognizable. Skin on the back smooth. Back reddish brown, with several small dispersed black spots (Glaw and Vences 2007).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar
Marojejy. Specimens from Andasibe may in fact belong to a differentiated species (Glaw and Vences 2007). It has been recorded from near sea level up to 1300 m asl (Glaw and Vallan 2008).
Life History, Abundance, Activity, and Special Behaviors
Habits: Calling males were found during the day and evening in the forest leaf litter. Characteristic for this species are the normally extremely slow movements. When disturbed, however, they move faster and can jump up to 20 cm (Glaw and Vences 2007).
Calls: Regular series of chirping notes of very high frequency (Glaw and Vences 2007).
Trends and Threats
A major threat to this species is the receding of its forest habitat due to subsistence agriculture, timber extraction, charcoal manufacture, livestock grazing and expanding human settlements (Glaw and Vallan 2008).
Possible reasons for amphibian decline
General habitat alteration and loss
Habitat modification from deforestation, or logging related activities
Intensified agriculture or grazing
Taken with permission from Glaw and Vences (2007) and Glaw and Vallan (2008).
Glaw, F. and Vallan, D. (2008). Stumpffia tridactyla. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 21 April 2009.
Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
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 2001-10-29
Edited by Catherine Aguilar (2010-07-19)
Species Account Citation: AmphibiaWeb 2010 Stumpffia tridactyla <http://amphibiaweb.org/species/2366> University of California, Berkeley, CA, USA. Accessed Nov 15, 2019.
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Citation: AmphibiaWeb. 2019. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 15 Nov 2019.
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