Spiral-horned antelopes are a type of African antelope that are characterized by their long, curved horns. Two examples of spiral-horned antelopes are the Eland (6 letters) and the Nyala (6 letters). The Eland is the largest species of antelope and is found in savannas and woodlands of East and Southern Africa. The Nyala is native to Southern Africa and is known for its reddish-brown coat and white stripes.