polyacanthus, Tilapia Boulenger [G. A.] 1899:124, Pl. 45 (fig. 6) [Annales du Musee du Congo (Ser. Zoologie) v. 1 (fasc. 5); ref. 589] Pweto, Lake Mweru, Democratic Republic of Congo. Holotype (unique): MRAC 225. •Valid as Haplochromis polyacanthus (Boulenger 1899) -- (van Oijen et al. 1991:166 [ref. 20956]). •Valid as Schwetzochromis polyacanthus (Boulenger 1899) -- (Roberts & Kullander 1994:132 [ref. 21382], Greenwood & Kullander 1994:164 [ref. 21378]). •Valid as Orthochromis polyacanthus (Boulenger 1899) -- (De Vos & Seegers 1998:376 [ref. 23662], Schedel et al. 2014:148 [ref. 33459], Schedel et al. 2018:336 [ref. 36087]). Current status: Valid as Orthochromis polyacanthus (Boulenger 1899). Cichlidae: Pseudocrenilabrinae. Distribution: Democratic Republic of Congo. Habitat: freshwater.