Definitions
from The Century Dictionary.
- One of the many names applied to the acranial vertebrates (Pharyngobranchia, Leptocardia, or Acrania) represented by the genus Amphioxus or Branchiostoma, the lancelets: so named from the cirri surrounding the mouth.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) The lowest group of vertebrates; -- so called from the cirri around the mouth; the Leptocardia. See
amphioxus .
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