1.a large, dark gray salamander.
1.large aquatic salamanders: hellbenders; giant salamanders.
大型水生蝾螈;大鲵鱼;巨蝾螈。
2.North America's biggest salamanders, hellbenders can grow as long as 2. 5 feet (0. 7 meter) (file photo).
北美最大的蝾螈,隐鳃鲵可长至2.5英尺(0.7米)(资料图片)。