A superior mouth is a
mouth
In animal anatomy, the mouth, also known as the oral cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on ...
that opens upward, with the lower
jaw more anterior than the upper jaw. This is an effect typically seen in
fish. This usually means that the fish feeds from the surface of the body of water in which it dwells. A superior mouth is associated with fish in more stationary waters, such as those in
lake ecosystems.
References
Diseases of oral cavity, salivary glands and jaws
Fish anatomy
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