Auchenionchus is a genus of labrisomid blennies endemic to the Pacific waters off of Chile.

[1] Auchenionchus contains these currently recognized species:[1] The generic name is a compound of the Greek auchen meaning "neck" or "nape" and onchos meaning "tubercle" or "protuberance", this is presumed to refer to the tiny nuchal tentacle of the type species.

[2]

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