The non-native freshwater fishes of Hong Kong: diversity, distributions, and origins Author Chan, Jeffery C. F. Author Tsang, Alphonse H. F. Author Yau, Sze-man Author Hui, Tommy C. H. Author Lau, Anthony Author Tan, Heok Hui Author Low, Bi Wei Author Dudgeon, David Author Liew, Jia Huan text Raffles Bulletin of Zoology 2023 2023-02-22 71 128 168 journal article 10.26107/RBZ-2023-0012 2345-7600 7815765 82C3DAD3-0920-4430-A93D-9F887A58DC1A Hemichromis cf. camerounensis (Bitja-Nyom, Agnèse, Pariselle, Bilong-Bilong, Gilles & Snoeks) ( Fig. 29 , [LU]) Fig. 29. Hemichromis camerounensis , 86.4 mm SL, Lower Aberdeen Reservoir. Distribution. Lower Aberdeen Reservoir (GBIF.org, 2021; current survey); Upper Aberdeen Reservoir (current survey). Native range. Africa. Remarks . Identified as the newly described Hemichromis cf. camerounensis due to the presence of two red opercular spots accompanied by a large black spot, separating it from all other Hemichromis species ( Bitja-Nyom et al., 2021 ). However, DNA barcoding of the cytochrome b gene is necessary to confirm its identity, as some populations of Hemichromis elongatus are known to have the same feature ( Bitja-Nyom et al., 2021 ).