海洋里有一种迷人的生物叫海蝴蝶。实际上,海蝴蝶是适应了两极附近环境的海洋蜗牛,它们的正式名字叫翼足螺。虽然说叫螺,但它们有些已经没有壳了,有些虽然有壳却纤细透明。海蝴蝶的翅膀是一对或多对翼状瓣,实际上是它们的侧足。它们用翼状瓣在水中游荡。海蝴蝶个头很小,一般都在1厘米以内。别看它们个头不大,却以其他小动物为食呢。海蝴蝶通过位于翅膀上方布满黏液的网获取食物。它们一般 There is a fascinating creature in the sea called sea butterfly. In fact, the sea butterfly is a sea snail adapted to the environment in the vicinity of the poles. Their official name is the winged snail. Although called snail, but some of them have no shell, and some although the shell is slender and transparent. Sea butterfly wings are one or more pairs of wing-shaped petals, in fact, their lateral feet. They wander in water with wing valves. Sea butterfly small, generally less than 1 cm. Do not look at them small, but to other small animals to feed it. Sea butterflies get their food through a network of mucous located above their wings. They are generally