Of swimming creatures that are destitute of feet, some have winglets or fins, as fishes: and of these some have four fins, two above on the back, two below on the belly, as the gilthead and the basse;
一些没有脚的动物有小翼或者,如鱼;这样的动物有些有四
,
上,
部,如乌颊鱼和BASSE;