帆水母

浮体是一个扁平的蓝色椭圆形圆盘，长可达约10厘米，其上有一片通常被描述为三角形、斜向横贯其上的薄帆，边缘垂挂着短的蓝色触手。

The sail of Velella velella helps it drift at an angle to the wind and occurs in two opposite forms. According to the US National Park Service, left-handed forms are usually found in the Northern Hemisphere and right-handed forms in the Southern Hemisphere; this is a general pattern, not an absolute rule.

以获批时所用的语言显示，因为这段文字尚未经过中文审核。