Figure 4 from: Silva GSC, Roxo FF, Luz E. Ochoa LE, Oliveira C (2016) Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon. ZooKeys 598: 129-157. https://doi.org/10.3897/zookeys.598.7400

Figure 4 - Dorsal view of the caudal peduncle in Microplecostomus forestii sp. n., LBP 19017, 29.0 mm SL, showing the presence of a series of unpaired median plates that form a post-dorsal ridge.