• Webster's Revised Unabridged Dictionary
    • n. pl Percesoces (Zoöl) An order of fishes including the gray mullets (Mugil), the barracudas, the silversides, and other related fishes. So called from their relation both to perches and to pikes.
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Century Dictionary and Cyclopedia
    • percesoces A group of fishes so called because its species partake of the characters of and are intermediate between the perciform and esociform fishes In Cope's classification, an order of physoclistous fishes having the scapular arch suspended from the skull, ventral fins abdominal in position, and branchial arches well developed, their bones being generally present in full number excepting the fourth superior pharyngeal, and the third upper pharyngeal being much enlarged and complex.
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Webster's Revised Unabridged Dictionary
NL., fr. L. perca, a perch + esox, -ocis, a pike