Me, too. I found one pic that claims to be a platysilurus of some sort but has a broad horizontal bar down the length of the body. Don't know what to expect at this point.
Some links I've found that don't help much but make for fun browsing:
By jove, I think you're onto something! Looks like an aging progression. I do see the spots merging into a band. That's cool with me. I'm just still curious as to whether my fish is truly malarmo or possibly another platysilurus.