Rather small (males 19-20 mm). Hand without webbing, foot webbing 1(1), 2i(1.5-1.75), 2e(1), 3i(2.25-2.5), 3e(1.5-2), 4i/e(2.5-3), 5(1.5); webbing sum is 14-16. Vomerine teeth absent; lateral metatarsalia partially connected. Dorsal skin smooth. Colouration very variable.
Similar species: See B. wittei.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Madagascar
Ambohitantely, An’Ala, Andasibe, Anjanaharibe, Ankeniheny, Besariaka near Moramanga, Fierenana, Mandraka, Manombo, Ranomafana, Sainte Luce, Vevembe, Vohiparara. Occurs from 800-1,200m asl (IUCN 2008). Often in relatively large and rather exposed swamps at the forest edge, but also in small puddles in forest. Often in shallow flooded waters with dense fern vegetation.
Life History, Abundance, Activity, and Special Behaviors
Habits: Calling males were heard during day and night in swamps and shallow pools, sitting in low vegetation (20-50 cm high) above the water, often underneath leaves. Males sometimes form enormous explosive choruses after heavy rains. Mating behaviour was seen at Andasibe and is similar to B. wittei. When the leaf is narrow, the male's hands attach to the underside of the leaf. This position can be mistaken with head clasping.
Call: A call consists of 2-3 unharmonious, intense chirping notes. We never heard long note series as in B. wittei. Frequency is between 4 and 7 kHz.
Eggs and tadpoles: Egg masses at Andasibe were attached ca. 0.7 m above water surface on leaves. Tadpoles complete their development in the swamps. Tadpoles from Andasibe assigned to this species measure 7-10 mm total length in stage 25, 24-28 mm in stages 39-41. Tooth formula is 1/5+5//3, sometimes 1/4+4//3. Young measure 8-10 mm body length (Blommers-Schlösser 1979).
Blommers-Schlösser, R.M.A. (1979). ''Biosystematics of the Malagasy frogs. I. Mantellinae (Ranidae).'' Beaufortia, 29(352), 1-77.
Datong, Y., and Shunqing, L. (2004). Cynops cyanurus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 11 March 2009.
Glaw, F. and Vences, M. (1994). Amphibians and Reptiles of Madagascar. M. Vences and F. Glaw Verlags GbR., Köln.
Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
Originally submitted by: Frank Glaw and Miguel Vences (first posted 2000-11-03)
Edited by: Kellie Whittaker (2010-07-19)
Species Account Citation: AmphibiaWeb 2010 Blommersia blommersae <https://amphibiaweb.org/species/4585> University of California, Berkeley, CA, USA. Accessed Sep 22, 2023.
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Citation: AmphibiaWeb. 2023. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 22 Sep 2023.
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