Proteracanthus is a monospecific genus of marine ray-finned fish belonging to the family Ephippidae, the spadefishes and batfishes. The only species in the genus is Proeracanthus sarissophorus which occurs in coral reefs around Malaysia, Borneo, and Sumatra. This species is also known as the harpoon spadefish, or in Malaysia as drummer, knightfish, rudderfish or sea chub. This species grows to a length of 32.5 centimetres (12.8 in) SL.

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