Mormyridae
Cornish jack
Mormyrops anguilloides
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.
Mormyridae
Mormyrops anguilloides
Gobiesocidae
Lepadogaster purpurea
Carangidae
Uraspis secunda
Pomacentridae
Abudefduf saxatilis
Torpedinidae
Tetronarce cowleyi
Pomacentridae
Pomacentrus agassizii
Centriscidae
Notopogon lilliei
Trichiuridae
Tentoriceps cristatus
Aploactinidae
Ptarmus jubatus
Lophotidae
Lophotus lacepede
Lutjanidae
Pristipomoides filamentosus
Emmelichthyidae
Erythrocles monodi
Plesiopidae
Plesiops coeruleolineatus
Arhynchobatidae
Bathyraja tunae
Platycephalidae
Cociella crocodilus
Ophichthidae
Brachysomophis crocodilinus
Polypteridae
Polypterus teugelsi
Apogonidae
Fowleria aurita
Bothidae
Neolaeops microphthalmus
Gobiidae
Priolepis compita
Myctophidae
Diaphus diadematus
Holocentridae
Sargocentron diadema
Tetraodontidae
Canthigaster coronata
Kneriidae
Parakneria fortuita
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.