M 24-26 mm, F 26-31 mm. Tibiotarsal articulation reaches the eye, sometimes the nostril. Hand without webbing, foot webbing 1(1), 2i(1), 2e(1), 3i(2), 3e(1.5), 4i/e(2), 5(1). Dorsal skin slightly to moderately granular, usually with dorsolateral folds. Colouration dorsally variable, often light brown with darker markings, with or without vertebral stripe. Males with a weakly distensible single subgular vocal sac and distinct, relatively large femoral glands (Glaw and Vences 2007).
Taken with permission from Glaw and Vences (2007) and Vences and Vallan (2008).
Glaw, F., and Vences, M. (2007). Field Guide to the Amphibians and Reptiles of Madagascar. Third Edition. Vences and Glaw Verlag, Köln.
Vences, M. and Vallan, D. (2008). Mantidactylus alutus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 31 March 2009.