Longnose Harlequin Frog (Atelopus longirostris)

The longnose harlequin frog is a species of true toad in the family Bufonidae endemic to the western slopes of the northern Ecuadorian Andes, in Imbabura, Cotopaxi, Pichincha, and Santo Domingo de los Tsachilas provinces, historically at elevations between 900 and 1,925 meters. It has a slender body with long limbs and a sharply pointed snout, a brown dorsum marked with yellow or cream rounded spots, dark brown to black flanks, and a whitish belly with brown coloring on the throat and chest, with males measuring 30 to 35 millimeters and females 41 to 47 millimeters. It breeds in streams within lowland and montane tropical rainforest, and after more than two decades with no confirmed sightings, blamed on chytridiomycosis, climate change, and habitat loss, it was rediscovered in March 2016 in isolated forest patches surrounded by heavily modified farmland. The IUCN lists it as critically endangered.