硬鳞的

Darwin discussed about some anomalous forms in fresh water basins, which belong to the remnants of some interesting orders. Because these anomalous forms exhibit the anomaly of geographical distribution e.g. Ganoid fishes, or morphological anomaly such as Ornithorhynchus and Lepidosiren , they may be called living fossils. It is believed that Darwin presented the facts of the above anomalous forms, and used the term "living fossil" in order to further illustrate the subject of "Circumstances Favorable for the Production of New Forms Through Natural Selection" in Chapter IV. The term "living fossil" appears on page 486 again in the last Chapter, i.e. Chapter XIV "Recapitulation and Conclusion", where Darwin emphasized the significance of so-called "living fossils".

第一次在该书第四章"自然选择"（第107页）：为了在该章深刻阐述"通过自然选择产生生物新类型的有利条件"这一主题，达尔文谈到了淡水流域中残存着地理分布或形态上很异常的一些生物，如：硬鳞鱼、鸭嘴兽和美洲肺鱼，可以称之为"活化石"；第二次是在该书最后一章"复述与结论"（第486页），达尔文对"活化石"的作用进行了小结。

Large dark grouper with a thick head and rough scales.

长着大头和硬鳞的大型深色石斑鱼。

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

北美洲原始的食肉性鱼，体表有硬鳞，长嘴，牙齿呈针状。

A smooth trunkfish swims through its coral habitat off Grand Turk Island in the Caribbean.

一条硬鳞鱼游泳通过它的珊瑚栖息地在大特克岛之外位于洲和加勒比海地区。

Solitary in nature, the trunkfish blows water out of its mouth to expose prey such as mollusks, crustaceans, worms, and sponges.

孤立的本质上，硬鳞鱼打击了水来自它的嘴去暴露猎物，例如软体动物类，甲壳类，蠕虫和海绵动物。

Sturgeons, are primitive chondrosteans fish. Although morphologically similar with shark, they were classified to Class Actinopterygii.

鲟 为古老的软骨硬鳞鱼类，其外形与鲨鱼相近，却是属於条鳍鱼纲、软骨硬鳞亚纲、鲟形目。

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.

无刺河豚，也称为硬鳞鱼或角鱼，以它们的独特四四方方剖面图和bonelike ， 6侧面的板块，覆盖它们大部分的身体和保护它们免受天敌。

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.

硬鳞鱼 ，又称为trunkfish或cowfish ，是众所周知的它们的特色的箱子般四方形的矮胖的轮廓和骨头样，六面棱鳞以覆盖它们自己的身体和保护它们免遭猎食者。

Any of various fishes of the family Cyprinidae.boxfishes; filefishes; globefishes; ocean sunfishes; triggerfishes; puffers.

热带产的一种硬鳞鱼；豚鱼；河豚；海翻车鱼；热带鱼的一种；河豚科鱼类。

Their jaw s and face form a sharp-toothed beak, and their body is encased in an armour of diamond-shaped, thick scales.

两颚与面部形成一个有尖牙的喙，鱼体覆以菱形光亮而厚的硬鳞。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。