buccal valve
oral valve (the flap attached just inside the jaws which stop water escaping from the mouth during exhalation, helping to maintain a unidirectional flow. Usually a valve is found just inside the ring of teeth in the jaw)

Dictionary of ichthyology. 2009.

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  • oral valve — the flap attached just inside the jaws which stop water escaping from the mouth during exhalation, helping to maintain a unidirectional flow. Usually a valve is found just inside the ring of teeth in the jaw. Also called a buccal valve oral… …   Dictionary of ichthyology

  • breathing valve — oral valve (the flap attached just inside the jaws which stop water escaping from the mouth during exhalation, helping to maintain a unidirectional flow. Usually a valve is found just inside the ring of teeth in the jaw. Also called a buccal… …   Dictionary of ichthyology

  • mandibular valve — the buccal flap attached to the inside of the lower jaw which helps keep water from flowing out of the mouth during respiration …   Dictionary of ichthyology

  • maxillary valve — the buccal flap attached to the inside of the upper jaw which helps keep water from flowing out of the mouth during respiration …   Dictionary of ichthyology

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