Photo of "A. schoutedeni" - the figure 640 of A. schoutedeni from "Susswasserfische aus aller Welt", by Sterba, 1959, first edition.
According to Jouke van der Zee (pers comms, 2014): "This picture shows A. polli. This species has a very characteristic colour pattern of the anal fin. A. schoutedeni is a fish that resembles A. castaneum."