...代表动物—文昌鱼 我国厦门、青岛;临沂地区海滨都产(Branchiosloma belcheri)也称双尖 鱼 (Amphioxns) 或海矛 (Lancelet) 体长一般 50mm, 美国的圣地亚哥 (San Diego) 产的加洲文昌鱼可达 100mm,是最长的(已知) 。
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Amphioxus or lancelet, a cephalochordate, has long been regarded as the living invertebrate most closely related to the proximate invertebrate ancestor of vertebrates.
文昌鱼是现存的与脊椎动物原始祖先最接近的头索动物,一直被认为是研究脊椎动物起源和进化的模式动物。
参考来源 - 文昌鱼promethin·2,447,543篇论文数据,部分数据来源于NoteExpress
N any of several marine animals of the genus Branchiostoma (formerly Amphioxus), esp B. lanceolatus, that are closely related to the vertebrates: subphylum Cephalochordata (cephalochordates) 蝓鱼 (Also called amphioxus)
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