Eleotridae
mud sleeper
Butis koilomatodon
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.
Eleotridae
Butis koilomatodon
Soleidae
Austroglossus pectoralis
Clariidae
Clarias anguillaris
Sciaenidae
Argyrosomus japonicus
Distichodontidae
Nannocharax multifasciatus
Syngnathidae
Dunckerocampus multiannulatus
Platytroctidae
Normichthys operosus
Cichlidae
Aulonocara gertrudae
Epinephelidae
Epinephelus gabriellae
Peristediidae
Paraheminodus murrayi
Sparidae
Sparodon durbanensis
Congridae
Conger cinereus
Mochokidae
Synodontis albolineatus
Blenniidae
Omobranchus punctatus
Cichlidae
Oreochromis mweruensis
Cichlidae
Myaka myaka
Blenniidae
Parablennius incognitus
Myctophidae
Lampanyctus vadulus
Cyprinidae
Labeo trigliceps
Blenniidae
Ecsenius nalolo
Cyprinidae
Namaquacypris hospes
Cichlidae
Thoracochromis buysi
Mullidae
Parupeneus nansen
Ophichthidae
Ophichthus bonaparti
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.