Guibemantis liber
—
Free Madagascar Frog

Our guide identified this as the opposite gender of the Guibemantis pulcher we had seen a few minutes earlier. But the species account for G. pulcher in Glaw and Vences describes both genders as green, so I had to do some more researching to try to identify this one. I'm not completely certain that I've identified it correctly, so please send me email if you think I've gone astray.
Here is a list of all the reptiles and frogs I saw on this trip to Madagascar.
Printed references:
- Glaw, F., Vences, M. 2007. A Field Guide to the Amphibians and Reptiles of Madagascar, Third Edition
- Glaw, F., Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar, Second Edition