Original description as Tilapia mariae:
- Boulenger, George Albert. 1899. "A revision of the African and Syrian fishes of the family Cichlidae. Part II". Proceedings of the Zoological Society of London. pp 98-143 (1-47); (crc00051)
- Tilapia dubia Lönnberg, 1904, with type locality at Lake Barombi-ba-Kotta, Cameroon Mountain, Cameroon. Determiner: Stiassny, 1991
- Tilapia meeki Pellegrin, 1911, with type locality at Grand-Bassam Lagoon, Ivory Coast. Determiner: Cadwallader et al., 1983
Conservation: Pelmatolapia mariae is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2010).