Sphaenorhynchus is a genus of frogs in the family Hylidae. They are also known as lime treefrogs or hatchet-faced treefrogs. They are found in the Amazon and Orinoco River basins of South America, the

The Guianas, also spelled Guyanas or Guayanas, are a geographical region in north-eastern South America. In contemporary use, the term usually refers to "the three Guianas": Guyana, Suriname, and Fren