Oreosomatidae
Ox-eyed oreo
Oreosoma atlanticum
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.
Oreosomatidae
Oreosoma atlanticum
Mormyridae
Mormyrops zanclirostris
Blenniidae
Hypleurochilus aequipinnis
Carapidae
Onuxodon parvibrachium
Polymixiidae
Polymixia berndti
Neoscopelidae
Scopelengys tristis
Pomacentridae
Plectroglyphidodon fasciolatus
Sternoptychidae
Argyropelecus affinis
Diplophidae
Diplophos taenia
Anguillidae
Anguilla obscura
Rhinochimaeridae
Rhinochimaera africana
Gobiidae
Wheelerigobius maltzani
Antennariidae
Antennarius pictus
Serranidae
Serranus papilionaceus
Rajidae
Raja microocellata
Muraenidae
Gymnothorax pictus
Cichlidae
Aulonocara steveni
Labridae
Bodianus atrolumbus
Platytroctidae
Barbantus curvifrons
Acanthuridae
Acanthurus leucocheilus
Gobiidae
Eviota nebulosa
Pomacentridae
Pomacentrus trichrourus
Psychrolutidae
Cottunculus thomsonii
Sparidae
Pagellus bogaraveo
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.