Original description as Pelmatochromis longirostris:
- Boulenger, George Albert. 1903. "Descriptions of new freshwater fishes from southern Cameroon". Annals and Magazine of Natural History. (Ser. 7) vol. 12: pp. 435-441 (crc00336)
Conservation: Parananochromis longirostris is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2010).