• Webster's Revised Unabridged Dictionary
    • n. pl Rhynchocephala (Zoöl) 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.
    • ***
Century Dictionary and Cyclopedia
    • rhynchocephala A family of abdominal fishes having a produced snout, including Centriscus, Mormyrus, and Fistularia.
    • rhynchocephala In herpetology, same as Rhynchocephalia.
    • ***


Webster's Revised Unabridged Dictionary
NL., fr. Gr. "ry`gchos snout + kefalh` head