from the GNU version of the Collaborative International Dictionary of English
- n.pl. An order of reptiles having biconcave vertebræ, immovable quadrate bones, and many other peculiar osteological characters. Hatteria is the only living genus, but numerous fossil genera are known, some of which are among the earliest of reptiles. See hatteria. Called also Rhynchocephalia.
from The Century Dictionary and Cyclopedia
- A family of abdominal fishes having a produced snout, including Centriscus, Mormyrus, and Fistularia.
- In herpetology, same as Rhynchocephalia.
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