The orinoco drainage & Gulf of Paria fish = Astronotus miklojii and is formally described as such.
The oscar from Rio Caqueta (Rio Japura in Colombia) is currently designated as Astronotus sp. Jurua.
The Rio Negro oscar is what was formally known as rubrocellatus and is know designated as Astronotus sp. Negro. This fish is rarely collected sadly, as it also has a unique pattern.
Astronottus crassipinnis which has a very distinct look and is easy to recognize is what come out of the Rio Araguaia, Paraguay, Rio Guapore near Mato grosso.
Astronotus ocellatus will likely be broken up even more due to the fish from the eastern parts of Brazil and in french guainna also awaiting formal description and currently being designated as Astronotus sp. “East”.
The oscars in peru and Argentina will likely be something new as well.
Each has enough physical and gentic difference to deem the new dseignations. When you se ethem all in person in bulk and regularly you can start to see the differences to an extant. Trying to pin a location blindly is not so easy. Crassipinnis being the most unique is the easiest to ID.
The orinoco basin has been closed to collection since April 1. it just reopened on june 1. So nothing wild has come out of that region during that time.
Brazil has more or less been close since J1 when IBAM went on strike. very, very few fish have exported out of Brazil in 2024 unfortunately.