M 27 mm, F 31 mm. Hand without webbing, foot webbing 1(0.5), 2i(1), 2e(0.5), 3i(2), 3e(1), 4i/e(2), 5(1). Tympanum in males very large, fully translucent, enabling observers to "look through the head" of the specimen; females with a smaller tympanum. Males with a slightly distensible single subgular vocal sac and distinct femoral glands. Dorsal skin smooth to very slightly granular. Dorsally greenish with brown markings, and with silvery white spots on the flanks. Ventrally silvery white with two black streaks on the throat; limbs and throat edges translucent green (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.
- Glaw, F. and Vallan, D. (2008). Mantidactylus argenteus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 08 April 2009.