Cecil.
Maybe it's just salesmanship as far as I know there are no European strains of P. flavescens (yellow perch), on the other hand if the fish they are selling are truly P. fluviatilis (Eurasian perch) I wouldn't be surprised if the U.S. Fish and Wildlife people would like to have a pointed chat with these folks about where they got them from and how they got into the country. One telling characteristic of fluviatilis is a small black triangle and associated thick fin rays at the posterior end of the anterior (spiny)dorsal fin. Now I'm not an expert on the legal implications of exotic imports but I do know that if our (Wisconsin) DNR ever caught wind that someone was culturing an exotic outdoors or worse yet selling an exotic for culture there would be BIG trouble. After looking at the catalogue it's hard to say just what they are selling. Has any one on Pond Boss bought these fish and do they have the fluviatilis marking?

Jim
not making waves just waving goodbye