They are likely Heros severus. The bars are correct -- most Heros severus have a half-seventh bar as some of yours show. But in my F1 fry I also get fish that are totally missing the half bar, or the half bar appears on a bar other than bar seven. So there is a lot of variation in that.
I'm not sure if they are wild-caught or not. The last picture appears to show a fish with an underdeveloped upper lip, which I would expect to see in tank-bred fish, though it's entirely possible those deformities show up in wilds too.