Histiobranchus is a genus of eels in the family Synaphobranchidae.
It currently contains the following species: Histiobranchus australis (Regan, 1913) Histiobranchus bathybius (Günther, 1877) (deepwater arrowtooth eel) Histiobranchus bruuni Castle, 1964 (Bruun's cutthroat eel) Synonyms Histiobranchus infernalis Gill, 1883; valid as Histiobranchus bathybius
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