Pentanchidae
lined catshark
Halaelurus lineatus
FISH SPECIES
Discover fish with recorded distributions in Africa, across inland lakes, ancient river systems and coastal waters.
01 / NATURAL HISTORY
African ichthyofauna is famous for the rapid adaptive radiation of Rift Lake cichlids alongside archaic, relic lineages like lungfish and bichirs. These species demonstrate remarkable evolutionary resilience across dramatic tropical dry and wet cycles.
02 / LIFESTYLE
In the Great Rift Valley lakes (Victoria, Tanganyika, and Malawi), hundreds of cichlid species partition microscopic spatial zones—from rock-scraping mbuna to shell-dwelling dwarfs and scale-eating specialists. In contrast, riverine species navigating the Congo and Nile systems endure massive seasonal water level drops, with some surviving dry periods through aestivation or facultative air-breathing.
OBSERVATION INDEX
03 / SPECIES
Discover representative species illustrating the ecological diversity, morphologies and adaptations of this group.
Pentanchidae
Halaelurus lineatus
Microdesmidae
Ptereleotris grammica
Acanthuridae
Acanthurus lineatus
Labridae
Anampses lineatus
Cyprinidae
Enteromius brachygramma
Synaphobranchidae
Haptenchelys texis
Cichlidae
Steatocranus casuarius
Muraenidae
Gymnothorax chilospilus
Pseudochromidae
Pseudochromis kristinae
Cichlidae
Haplochromis xanthopteryx
Congridae
Gnathophis habenatus
Apogonidae
Apogon caudicinctus
Cichlidae
Lethrinops microstoma
Cichlidae
Nimbochromis livingstonii
Mormyridae
Marcusenius livingstonii
Gobiidae
Cabillus lacertops
Synodontidae
Synodus saurus
Myctophidae
Notoscopelus caudispinosus
Gobiidae
Hetereleotris tentaculata
Poeciliidae
Plataplochilus loemensis
Gobiidae
Bryaninops loki
Mormyridae
Hippopotamyrus castor
Blenniidae
Entomacrodus solus
Mullidae
Parupeneus macronemus
04 / FIELD NOTES
The Great Lakes of East Africa witnessed explosive evolutionary radiations where a few ancestral species diverged into hundreds of ecologically specialized species in remarkably short geologic time spans.
Certain species, like the African lungfish, can burrow into muddy riverbeds and secrete a protective mucous cocoon to aestivate for months until rains restore the waterway.