| one or two species? on the case of hyperolius discodactylus ahl, 1931 and h. alticola ahl, 1931 (anura: hyperoliidae). | in 1931, ernst ahl described two species of reed frogs inhabiting montane forests of the albertine rift in east africa, hyperolius alticola and h. discodactylus, which were synonymized two decades later by raymond laurent. since then, this revision has been questioned repeatedly, but taxonomists have been reluctant to make a conclusive decision on the matter, especially since the type material of h. alticola was reported as being lost. here, we examine the rediscovered type material of h. altico ... | 2014 | 24871178 |