Original description as Hemichromis serranus:
- Pfeffer, G. J. 1896. "Die Thierwelt Ost-Afrikas und der Nachbargebiete". Möbius, K. (Ed.) Deutsch-Ost-Afrika Die Thierwelt Deutsch-Ostafrikas Wirbelthiere. i-xviii + pp. 1-72 (crc00089)
- Haplochromis acutirostris Regan, 1922, with type locality at Bunjako, Uganda, Lake Victoria. Determiner: van Oijen et al., 1991
Conservation: Haplochromis serranus is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (DD) data deficient (2010). Haplochromis serranus has been brought to the hobby and some were kept in Europe, we are making an effort to recover as many of the predators species that have been vanished from the lake by the Nile Perch predation. Haplochromis serranus has been collected last in 1993 so there is a chance that some still survive in areas with cover such as bog plant areas and rocks reefs.