Definition of Physostomi
in some classifications
: an order of teleost fishes comprising those in which the air bladder when present is joined with the esophagus by an open duct and the ventral fins when present are abdominal, including the salmons, herrings, carps, catfishes, and others, and being more or less nearly equivalent to Isospondyli — compare malacopterygii physoclisti
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Origin and Etymology of physostomi
New Latin, from phys- + -stomi
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