A medium-sized frog; males 29-35 mm, females 36-40 mm. Colour in life unknown. In preservative, back brownish with large longitudinal black markings. Lower side of the legs and venter white, with distinct black markings. Throat dark, with irregular white spots forming a white median stripe. Skin smooth. Nostrils slightly nearer to tip of snout than to eye. Tympanum distinct, about 1/2-2/3 of eye diameter. Tibiotarsal articulation reaches at least the eye. Lateral metatarsalia connected. Hand without webbing; webbing of the foot 1(1.5), 2i(2), 2e(1), 3i/e(2), 4i(3), 4e(2.5), 5(1). Fingers with well developed terminal disks. Femoral glands clearly visible in males. A very distinctive colouration with green-brown longitudinal bands and markings on the dorsum.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar
Andohahela, Chaines Anosyennes. It occurs between 1,200-1,800m asl among rock outcrops in montane rainforest (Raxworthy and Cadle 2008).
Life History, Abundance, Activity, and Special Behaviors
Habits: Males call during the day from the ground along streams, in rainforest at relatively high elevations.
Calls: A fast series of short melodious click notes.
Trends and Threats
Endangered: extent of occurrence is less than 5,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat. It occurs in Parc National d'Andohahela and the Réserve Spéciale de Kalambatritra (Raxworthy and Cadle 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).
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 Cadle, J. (2008). Spinomantis guibei. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. . Downloaded on 05 May 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 Henry Zhu (2009-05-05)
Species Account Citation: AmphibiaWeb 2009 Spinomantis guibei <http://amphibiaweb.org/species/4602> University of California, Berkeley, CA, USA. Accessed Nov 12, 2018.
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Citation: AmphibiaWeb. 2018. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 12 Nov 2018.
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