海兔 hǎi tù Ovula ovum 海蛞蝓

海蛞蝓不是蛞蝓，又称海麒麟，是螺类的一种，海兔科海洋腹足纲厚鳃亚纲，其头上的两对触角突出如兔耳。海蛞蝓属浅海生活的贝类。它是软体动物家族中的一个特殊的成员。它们的贝壳已经退化为内壳。背面有透明的薄薄的壳皮，壳皮一般呈白色，有珍珠光泽。

海蛞蝓是雌雄同体的生物，海底栖息，体裸露，雌雄两个生殖孔间有卵精沟相连。海兔分布于世界暖海区域，中国暖海区也有出产这种动物。海蛞蝓是科学家发现的第一种可生成植物色素叶绿素的动物。 

2021年3月，日本研究人员发现了一种海蛞蝓，能够自断头部，并从残存的头部再生身体。此前人们已知涡虫等水生生物能再生失去的身体，而这是首次发现有复杂身体构造的生物能够进行身体再生 

百度翻译提供：

The sea slug is not a slug, also known as the sea unicorn, but a kind of snail. The sea slug belongs to the marine gastropoda pachybranchia of the sea hare family, and its two pairs of antennae on its head protrude like rabbit ears. Sea slug is a kind of shellfish living in shallow sea. It is a special member of the mollusc family. Their shells have degenerated into inner shells. There is a transparent thin shell on the back, and the shell is generally white with pearl luster.