Haplochromis

Haplochromis and related genera from Africa’s Lake Victoria region represent the largest cichlid fish genus and the most species awaiting description. These fishes provide textbook examples of adaptive radiations and the role of hybridisation in speciation and evolution. While being very speciose and morphologically as well as ecologically very diverse in Africa, there is only one species native to Asia, which is distantly related to the “Lake Victoria Region Superflock.”

Further reading. Meier et al. 2017 (phylogeny, species diversity, evolution); Moser et al. 2018 (fast speciation).