Osmeriformes

Osmeriformes is an order of ray-finned fish that includes the true or freshwater smelts and allies, such as the galaxiids and noodlefishes. Osmeriformes are small to mid-sized slender fish. Their maxilla is usually included in the mouth's gape, and most of them have an adipose fin as is often found in the Protacanthopterygii. Despite the term "freshwater smelts", the members of the Osmeriformes are generally marine, or amphidromous or anadromous migrants. Even the sedentary freshwater species in this family are usually tolerant of considerable changes in salinity. For more information, visit the Wikipedia entry Get back to Actinopterygii

Ayu

New Zealand grayling