The Bony-Tongued Fishes - Taxonomic Update

What this episode covers

The bony-tongued fishes make up the order Osteoglossiformes. This order is a relatively primitive or basal order of ray-finned fishes. The group contains a wide variety of fishes from the giant arapaima of the amazon the tiny feather-fin knife-fishes and freshwater butterflyfish. The classification of the order comes from a few morphological similarities. In particular, most fish in this group have a kind of bony-tongue. Often this tongue has teeth on it and is used to crush down against the teeth on the top of the mouth.

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