Definitions for osmeriformes

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  1. Osmeriformes

    Osmeriformes is an order of ray-finned fish that includes the true or freshwater smelts and allies, such as the galaxiids and noodlefishes; they are also collectively called osmeriforms. They belong to the teleost superorder Protacanthopterygii, which also includes pike and salmon, among others. The order's name means "smelt-shaped", from Osmerus + the standard fish order suffix "-formes". It ultimately derives from Ancient Greek osmé + Latin forma, the former in reference to the characteristic aroma of the flesh of Osmerus. In the classification used here, the order Osmeriformes contains 2 suborders, 6 families, some 20 genera and about 90 species. Other authors choose a slightly different arrangement, but whether treated as suborders or superfamilies, the division in two lineages is generally maintained. The "marine" smelts and allies were formerly included here as suborder Argentinoidei; they are now usually considered more distantly related than it was believed and treated as order Argentiniformes. When the marine smelts were included here, the subdivisions of the Osmeriformes were down-ranked by one.

U.S. National Library of Medicine

  1. Osmeriformes

    An order of fish including smelts, galaxiids, and salamanderfish.

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