Subject: What fish breath air thru lungs?

I'm a teacher in Penn.  The kids have me stumped.  What fish breath thru 
lungs?  To be considered a fish aren't gills a part of the classification 
process?  Can these fish survive without water?  Do they need moisture to 
survive?  All the sites I'v seen tell me there are fish that have lungs 
but not what kinds.  Help, Please.  Thanks  By the way catfish, lungfish 
and blowfish are gill breathers, right?   Meredith

Re: What fish breath air thru lungs?