浮浪幼体腔肠动物其扁平的，能自由浮游的，有纤毛的幼体。
钟虫一种钟虫属有纤毛的原生动物，具有铃状的身体，常连在一个植物或其它物体的细茎上并居住于水下。
Any of various ciliate protozoans of the genus Vorticella, having a bell-shaped body and living underwater on a slender stalk often attached to a plant or other object.
内层的黏膜有纤毛，向内突出以挡住微粒。
An inner mucous membrane has cilia (see cilium) that project inward to trap particles.
内层的黏膜有纤毛，向内突出以挡住微粒。
An inner mucous membrane has cilia (see cilium) that project inward to trap particles.
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