大家在查：大西洋蓝鳍金枪鱼噬人鲨乌鲳鳍条鱼鳍攀鲈辐鳍鱼纲地球资源技术卫星优势种群落结构

硬鳞

硬鳞

硬鳞(ganoid scale)是原始硬骨鱼所具有的鳞片，来源于真皮。呈菱形，其表面珐琅质层(闪光层)和底部的骨质层都很厚，而中 …

Their jaws and face form a sharp-toothed Beak , and their Body is encased in an armour of diamond-shaped , thick scales .

dentine A hard mesodermal material in teeth and some scales (cosmoid, ganoid and placoid scales ) produced by odontobasts.