Are perch ray-finned or lobe-finned fish?
http://en.wikipedia.org/wiki/Actinopterygii They are ray-finned. Search for 'perch' on that page and it says on there =]
True Yellow Perch (perca flavescens) originated in many areas of the Northern Hemisphere, especially in the Great Lakes region of the United States. That said, no fish name is more misused on restaurant menus than "perch". If in a restaurant, you see the word "perch" on a menu, and it is clarified as "Ocean Perch", "Rock Perch", "New England Perch", or "White Perch", it is a different, and almost invariably, inferior fish. Look for "Lake…
Bony fish belong to the Class Sarcopterygii (if lobe-finned) and the Class Actinopterygii (if ray-finned). Coelacanths and lungfish are lobefinned and about all other bony fish are ray-finned. The two classes used to be combined as Class Osteichthyes. There are many superorders and orders in the bony fish classes.