鱼体形状是鱼类学的重要内容，目前国内外一般仅用一个正视图和文字说明来绘述。
The fish shape as an important part of ichthyology, is only described with one view and additional notes at home and abroad presently.
可是受到自己马萨诸塞州文化的限制，他只好玩了这种温和点的植物学和鱼类学游戏。
But, restrained by his Massachusetts culture, he played out the game in this mild form of botany and ichthyology.
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