from the GNU version of the Collaborative International Dictionary of English

  • A group of fishes, established by Agassiz, characterized by having scales with a pectinated margin, as in the perch. The group is now generally regarded as artificial.

from The Century Dictionary and Cyclopedia

  • In L. Agassiz's system of classification, one of four orders of the class fishes, containing those in which the scales are ctenoid or pectinate.


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