Original description as Apistogramma similis:
ZooBank:4EF24D6C-44BB-40C9-B0A0-0205E975BD44.
- Staeck, Wolfgang. 2003. "Cichliden Lexikon, Teil 3: Südamerikanische Zwergbuntbarsche". Dähne Verlag, Ettlingen, Germany. 3:219 p (crc00995)
Conservation: Apistogramma similis is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2016).