Nice link ewok ... between those pics and Taz's, I think I am liking those sev's more so even than the rot's ...
And you are right ... ie I have some Crenicichla sp. 'wallacii' from the Rio Atabapo. In other words, looks exactly like Crenicichla wallacii but no one is quite sure if it's an extension of the previously known range, or a new closely related species. Sometimes you'll see it as 'sp. affin' as well, latin obviously enough for 'has affinity with species' then the name.