頸部能展開扇狀頸圈的爬蟲類，受到威脅時會展開頸圈並張口嚇阻對手。體型細長、四肢強健，能在樹上與地面迅速移動。以昆蟲及小型動物為食，棲息於乾燥地區或森林邊緣地帶。
A reptile that can open a large fan-shaped frill around its neck. When it feels a threat, it opens its frill and opens its mouth to surprise the opponent. It has a long, slender body and strong legs, and can move fast both on trees and on the ground. It eats insects and small animals and lives in dry regions or forest edges.