Original description as Paratilapia thomasi:
- Boulenger, George Albert. 1915. "Descriptions of new freshwater fishes from Sierra Leone". Annals and Magazine of Natural History. (8) 15; p 202-204 (crc00008)
Conservation: Anomalochromis thomasi is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2010).