Heterognathi

plural noun
Het·er·og·na·thi | \ ˌhetəˈrägnəˌthī \

Definition of Heterognathi 

in some classifications

: an order of teleost fishes that resemble members of the family Cyprinidae but have an adipose fin and teeth in the jaws and that comprise Characidae and related families now usually included in a division of the suborder Cyprinoidea — compare ostariophysi

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History and Etymology for Heterognathi

New Latin, from heter- + -gnathi (plural of -gnathus -gnathous)

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