Chilochromis duponti is a species of cichlid endemic to riverine habitats in the Chiloango River basin of Cabinda Province of Angola and the Democratic Republic of the Congo, the Kouilou-Niari River and lower Loeme River in the Republic of Congo, and the Nyanga basin and upper Ngounie River which is part of the Ogooué system in Gabon. The main part of its diet is aquatic vegetation, largely algae, but small amounts of invertebrates are eaten. It is spawns on to the substrate. This species reaches a length of 30 centimetres (12 in) SL. It is the only currently known member of its genus. The specific name honours the Édouard Dupont (1841-1911), a Belgian geologist who was a pioneer of the geological exploration of the Congo Basin and a director of the Brussels Museum.
Microctenopoma ansorgii is a small freshwater fish, known in the aquarium trade as the ornate ctenopoma, orange ctenopoma, ornate climbing perch, pretty ctenopoma, or rainbow ctenopoma. It is related to the more familiar spotted climbing perch, but looks very different. Its body is more elongated and rounded, with fins with red and black stripes; the color intensifies when the fish are displaying, with black bars becoming visible on the body. The ornate ctenopoma spawns at night, laying its eggs on a floating bubble nest like its relatives in the osphronemidae. It lives in the slow-flowing forest streams of the Congo Basin, where it feeds on worms, insect larvae, and other aquatic invertebrates. It is the most common member of its genus in the aquarium trade, where it is known for being a shy, easily bullied fish that needs live or frozen foods and which benefits from the presence of smaller dither fish to encourage it to come out of hiding.
The Lake Rukwa lampeye is a species of fish in the family Poeciliidae. Its natural habitats are intermittent rivers, freshwater marshes, and intermittent freshwater marshes. It is threatened by habitat loss. This species occurs in central Africa in Lake Rukwa, Tanzania, the Malagarasi River, Wembere River system and the upper basin of the Congo River. Its specific name honours the German physician and zoologist Friedrich Fülleborn (1866-1933), who collected the type.
Ctenochromis horei is a species of haplochromine cichlid which is found in East Africa.
Astatotilapia stappersii is a ray-finned fish species in the family Cichlidae. Adults measure about 15 cm (6 inches) in total length.
Mastacembelus cunningtoni is a species of fish in the family Mastacembelidae. It is endemic to the Lake Tanganyika basin, including the Lakes outflow, the Lukuga River as far as the Kisimba-Kilia rapids. It occurs in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. The specific name of this fish honours the British zoologist and anthropologist William Alfred Cunnington (1877-1958), leader of the expedition to Lake Tanganyika which collected the type.
Micralestes stormsi is a species of fish in the family Alestidae. It is found in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. Its natural habitat is rivers.
Microctenopoma damasi is a species of fish in the family Anabantidae. It is found in the Democratic Republic of the Congo and Uganda. Its natural habitat is rivers. This species was formally described in 1939 as Anabas damasi by the Belgian ichthyologist Max Poll, the type locality given was Semliki River at Ishango in the Democratic Republic of Congo. The type was collected by Hubert Damas (1910-1964) of the University of Liège and when he described the species Poll named Damas as co-author, this meant that Damas was the co-author of a specific name which honoured himself.
Nothobranchius kirki, the redfin notho, is a species of killifish from the family Nothobranchiidae which is endemic to Malawi where it occurs in the drainages of Lake Malawi and Lake Chilwa. It inhabits swamps and ephemeral pools. This species can reach a length of 5 centimetres (2.0 in) TL. It can also be found in the aquarium trade. This species was described in 1969 by the South African ichthyologist Rex Jubb from types collected by R. G. Kirk, who was a fish biologist of the Agricultural Research Services part of the Ministry of Natural Resources of Malawi, from a pool adjacent to the Likangala River which forms part of the endorheic basin of Lake Chilwa in Malawi.
Enteromius brazzai is a species of ray-finned fish in the genus Enteromius which occurs in the central Congo Basin and some other rivers in Gabon, Central African Republic and Cameroon.
Enteromius stanleyi is a species of ray-finned fish in the genus Enteromius which is endemic to the Congo River system in the Democratic Republic of the Congo.
The blackback barb is a species of cyprinid fish native to Africa where it is known to occur in shallow, vegetated waters of the Zambezi River system, the Cunene River system and the Zambian portion of the Congo River system. This species can reach a length of 7 centimetres (2.8 in) SL.
Pseudocrenilabrus nicholsi is a species of cichlid native to the Congo Basin in Africa. As other members of the genus Pseudocrenilabrus, it is a mouthbrooder. This species can reach a length of 8.5 centimetres (3.3 in) SL. The specific name honours the American ichthyologist John Treadwell Nichols (1883-1958) who was curator of fishes at the American Museum of Natural History. Nichols originally described this species as Paratilapia ventralis in 1928 but this name had already been used by George Albert Boulenger for another species of cichlid in 1898.
Hypleurochilus langi is a species of combtooth blenny found in the eastern Atlantic ocean, from Senegal to the mouth of the Congo River. This species grows to a length of 7 centimetres (2.8 in) SL. This blenny is euryhaline and it enters mouths of large rivers and occurs among mangroves, it prefers brackish water. The specific name of this blenny honours the German zoologist and taxidermist Herbert Lang (1879-1957) of the American Museum of Natural History, who helped to collect the type.
Polypterus weeksii, the mottled bichir, is a fish in the family Polypteridae found in the central basin of the Congo River. It grows to about 54 cm in head-to-tail length.
Parasicydium bandama is a species of goby native to fast-flowing streams and rivers of Cameroon, Congo, Gabon and the Ivory Coast. This species grows to a length of 5.4 centimetres (2.1 in) TL. This species is the only known member of its genus. The genus refers to this species resemblance to members of the genus Sicydium while the specific name is the name of the Bandama River in the Ivory Coast where the type specimen was collected.
Orthochromis machadoi, the Cunene dwarf happy, is a species of cichlid native to Angola and Namibia, where it is known from the Cunene River system. This species can reach a length of 6.5 centimetres (2.6 in) SL. The specific name of this fish honours the Portuguese zoologist António de Barros Machado (1912-2002) who collected the type in Angola.
Microthrissa royauxi, the royal sprat, is a species of pelagic, freshwater fish from the herring family Clupeidae which is found in the Congo River basin in west Africa. It was described in 1902 by the Belgian-British zoologist George Albert Boulenger. It is of limited importance as a food fish in subsistence fisheries and its conservation status is Least Concern.
Polypterus mokelembembe is a species of the fish genus Polypterus, found in the central basin of the Congo River.
Tilapia baloni is a species of Cichlid native to the Congo River basin of western Zambia. It is named after Polish-Canadian ichthyologist Eugene K. Balon.
