| NOUN | animal | amphioxus, lancelet | small translucent lancet-shaped burrowing marine animal |
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| Meaning | small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates. | |
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| Synonym | lancelet | |
| Member of | genus Amphioxus | type genus of the Amphioxidae |
| Broader | cephalochordate | Fish-like animals having a notochord rather than a true spinal column |
| Spanish | branchiostoma lanceolatum | |
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