leptocardia definition

  • noun-plural:
    • the cheapest course of Vertebrata, including only the Amphioxus. The center is represented only by a straightforward pulsating vessel. The bloodstream is colorless; the brain, renal organs, and limbs tend to be desiring, and the anchor is represented just by an easy, unsegmented notochord. See amphioxus.
  • others:
    • Same as Leptocardii.

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