(Leptopelis calcaratus)
Leptopelis calcaratus is a species of frog in the family Arthroleptidae. It is found in southeastern Nigeria, Cameroon, the southwestern Central African Republic, Equatorial Guinea (including the island of Bioko), Gabon, the Republic of the Congo, and the Democratic Republic of the Congo. Common name Efulen forest treefrog has been coined for it (part of the type series originated from Efulan).