small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates 同义词：amphioxus,
The lancelets (from "lancet"), also known as amphioxus, comprise some twenty-two species of fish-like marine chordates with a global distribution in shallow temperate (as far north as Scotland) and tropical seas, usually found half-buried in sand. They are the modern representatives of the subphylum Cephalochordata, formerly thought to be the sister group of the craniates.
例句与用法
1.
The nationally protected lancelet are also found here 国家保护动物文昌鱼亦在该处出没。
2.
Amphioxus or lancelet , a cephalochordate , is the extant invertebrate chordate considered to be the closest relationship to the vertebrates 文昌鱼被认为是和脊椎动物亲缘关系最近的动物。
3.
Amphioxus or lancelet , a cephalochordate , has long been regarded as the living invertebrate most closely related to the proximate invertebrate ancestor of vertebrates 在动物的进化历程中，文昌鱼是介于无脊椎动物与脊椎动物之间的过渡类型。
您当前位置：