Did you do an Image search on Google? When I entered the search terms
   
mudcat "flathead catfish"

(use the double quotes around phrases) and clicked Image on the tab at the top of the search box I found these two pix.

Using the proper scientific name might bring up a few more pix as well.



      flatcat.gif

flatcat.gif
356 x 116 pixels - 28k
www.dnr.state.oh.us/wildlife/fishing/aquanotes/flatcat.html



      flatcat.jpg

334 x 164 pixels - 11k
                                                www.dnr.state.oh.us/wildlife/resources/aquanotes/pub116.htm

Helen