Recent post had similar looking patterned poly sold as delhezi. Check out posts 50-55 and compare the pattern to yours. Seems like a ansorgii/endli cross.
http://www.monsterfishkeepers.com/forums/threads/polypterus-ornate-overeating.666217/page-6
http://www.monsterfishkeepers.com/forums/threads/polypterus-ornate-overeating.666217/page-6