Original description as Heterogramma ortmanni:
ZooBank:89ED13F5-7259-4599-B650-F481238FAFC6.
- Eigenmann, Carl H. 1912. "The freshwater fishes of British Guiana, including a study of the ecological grouping of species, and the relation of the fauna of the plateau to that of the lowlands". Memoirs of the Carnegie Museum. 5:1:i-xxii + 1-578 (crc00216) (abstract)
Conservation: Apistogramma ortmanni is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.