Mesonauta mirificus Kullander & Silfvergrip 1991

This species is distinguished from its congeners by its colour pattern: bar 6 including a light vertical stripe that usually divides the bar into two narrow parallel stripes below the middle of the side, and narrow dark horizontal lines along the side. It is similar to M. egregius in having bar six doubled, but with 8 or 9 (vs. 6 or 7) anal fin spines (Ref. 86444).

In blackwater rivers, among plants (Ref. 40602).

Mesonauta mirificus is a species of cichlid fish native to the western Amazon basin in Peru and Colombia. It is typically found near plants in blackwater rivers and reaches a length up to 9.7 cm (3.8 in).