M 21-23 mm, F unknown. Three distinct dermal tubercles above each eye. Tibiotarsal articulation reaches tympanum. Fourth finger as long as second, third toe distinctly longer than fifth. Fingers and toes short, inner toe very reduced. Dorsal skin slightly granular. Back light brown with hourglass-marking and small dark spots. Tympanic region with a whitish streak (Glaw and Vences 2007).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar
Occurs in Ankeniheny, Mandraka (Glaw and Vences 2007) at 900-1400 m asl (Raxworthy and Vences 2008). Found in leaf litter of primary rainforest, secondary forest and pine forest (Glaw and Vences 2007).
Life History, Abundance, Activity, and Special Behaviors
Habits: Terrestrial, in forest leaf litter. Calls after dusk and during the day, especially shortly after rain (Glaw and Vences 2007).
Calls: A series of 5-12 frequency-modulated melodious notes, lasting 1.5-4.5 seconds (Glaw and Vences 2007).
Trends and Threats
This species has a fragmented distribution within a narrow altitudinal range. It is found in three protected areas: Parc National de Zahamena, Parc National de Mantadia and Parc National d'Andringitra (Raxworthy and Vences 2008). Its forest habitat is being lost due to increasing agriculture and grazing, logging, charcoal manufacture, invasion and spread of eucalyptus, and expanding human settlement.
Possible reasons for amphibian decline
General habitat alteration and loss
Habitat modification from deforestation, or logging related activities
Intensified agriculture or grazing
Subtle changes to necessary specialized habitat
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). Rhombophryne coronata. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 15 April 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 2009-04-15
Edited by Kellie Whittaker (2010-07-19)
Species Account Citation: AmphibiaWeb 2010 Rhombophryne coronata <http://amphibiaweb.org/species/6396> University of California, Berkeley, CA, USA. Accessed Nov 15, 2018.
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Citation: AmphibiaWeb. 2018. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 15 Nov 2018.
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