硬鳞

长着大头和硬鳞的大型深色石斑鱼。

Large dark grouper with a thick head and rough scales .

记甘肃明水侏罗纪两类新的硬鳞鱼

New Jurassic ganoid fishes from northwestern Gansu , China

鲟鱼和长嘴鱼都是硬鳞鱼。

Fishskin disease Sturgeons and gars are ganoid .

类似鲨鱼之类的板状硬鳞。

As the hard flattened scales of e.g.sharks .

美洲沿海热带水域中长有大眼睛和硬鳞的红色鱼。

Red fishes of American coastal tropical waters having very large eyes and rough scales .

北美洲原始的食肉性鱼，体表有硬鳞，长嘴，牙齿呈针状。

Primitive predaceous North American fish covered with hard scales and having long jaws with needle-like teeth .

陆龟的背甲高而呈圆盖形；后肢粗大，形如象腿；前肢覆以硬鳞。第一对腿上有大钳子的大型可食用海生甲壳动物。

" Tortoises have a high , domed shell , heavy elephant-like hind legs , and hard-scaled forelegs . " large edible marine crustaceans having large pincers on the first pair of legs .

箱鲀，又称硬鳞鱼或角鱼，为人熟悉的除了它别具特色的方形身体外，还有它呈六边形生长，覆盖几乎整个身体的鱼骨，帮助它抵御捕食者。

Boxfish , also known as trunkfish or cowfish , are known for their distinctive boxy profiles and for the bonelike , six-sided plates that cover much of their bodies and protect them from predators .