The Congo River, formerly also known as the Zaire River, is the second-longest river in Africa, shorter only than the Nile, as well as the third largest river in the world by discharge volume, following the Amazon and the Ganges rivers. It is also the world's deepest recorded river, with measured depths of around 220 m (720 ft). The Congo-Lualaba-Chambeshi River system has an overall length of 4,700 km (2,900 mi), which makes it the world's ninth-longest river. The Chambeshi is a tributary of the Lualaba River, and Lualaba is the name of the Congo River upstream of Boyoma Falls, extending for 1,800 km (1,100 mi).
Lake Tanganyika is an African Great Lake. It is the second-oldest freshwater lake in the world, the second-largest by volume, and the second-deepest, in all cases after Lake Baikal in Siberia. It is the world's longest freshwater lake. The lake is shared among four countries—Tanzania, the Democratic Republic of the Congo (DRC), Burundi, and Zambia, with Tanzania (46%) and DRC (40%) possessing the majority of the lake. It drains into the Congo River system and ultimately into the Atlantic Ocean.
Opsaridium loveridgii is a species of ray-finned fish in the family Cyprinidae. It is found only in Tanzania. Its natural habitats are rivers and freshwater lakes.
Opsaridium is a genus of cyprinid fish found in Africa. Currently, 12 species are in this genus.
Opsaridium microcephalum is a species of ray-finned fish in the family Cyprinidae found in Malawi, Mozambique, and Tanzania. Its natural habitats are rivers and freshwater lakes.
The lake salmon or mpasa is an African species of freshwater fish, endemic to Lake Malawi, in the family Cyprinidae found in Malawi, Mozambique, and Tanzania. Its natural habitats are rivers and freshwater lakes.
The dwarf sanjika is an African freshwater fish species in the family Cyprinidae. It is found in Malawi and Mozambique, living in Lake Malawi and the lower Zambezi River.
Opsaridium splendens is a species of ray-finned fish in the family Cyprinidae found in Burundi and Tanzania. Its natural habitat is rivers. It is threatened by habitat loss.
Synodontis congicus is a species of upside-down catfish native to the Democratic Republic of the Congo and the Republic of the Congo where it occurs in the upper and middle Congo Basin. It was first described by Belgian ichthyologist Max Poll in 1971. The first specimen was found near the town of Gangala-na-Bodio, Democratic Republic of the Congo, in the Dungu River. The meaning of the specific name "congicus" is "From the Congo".
Synodontis greshoffi is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo. It was first collected by M.A. Greshoff in Pool Malebo on the upper Congo River, and the species was named for him by the author of the first paper written about the species, Belgian ichthyologist Louise Schilthuis, in 1891.
Synodontis notatus, known as the onespot squeaker, the one-spot synodontis, or the domino syno, is a species of upside-down catfish native to the Congo Basin of the Democratic Republic of the Congo, and the Republic of the Congo. It was first described by French zoologist Léon Vaillant in 1893. The specific name "notatus" comes from the Latin word for "marked", as with a spot.
Synodontis nummifer, known as the two spot synodontis, is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo. It was first described by the Belgian-British zoologist George Albert Boulenger in 1899, based upon a holotype discovered in Léopoldville, Belgian Congo. The specific name "nummifer" comes from the Latin for "to bear a coin", which refers to the large spots on its sides.
Hydrocynus goliath, also known as the goliath tigerfish, giant tigerfish, or mbenga, is a very large African predatory freshwater fish of the family Alestidae.
The West African bichir or retropinnis bichir, is a freshwater fish in the family Polypteridae, is found in the central Congo River basin and Ogooué River in Africa. It is a long, slender fish that grows to a maximum length of about 34 cm (13 in).
Opsaridium boweni is a species of ray-finned fish in the family Cyprinidae. It is found in the Lulua River in Democratic Republic of the Congo.
Opsaridium engrauloides is a species of ray-finned fish in the family Cyprinidae. It is found the Ubangi in the Central African Republic.
Opsaridium leleupi is a species of ray-finned fish in the family Cyprinidae. It is found in the upper Lualaba River in Democratic Republic of the Congo.
Opsaridium maculicauda is a species of ray-finned fish in the family Cyprinidae. It is found in the Kasai River in Democratic Republic of the Congo.
The barred minnow is a species of cyprinid fish found in river systems from the Democratic Republic of Congo, south to Namibia, Zimbabwe and far northern areas of South Africa.
Phenacogrammus aurantiacus is a species of freshwater fish in the African tetra family. Individuals of the species may reach a length of 10.0 cm (3.9 in). The fish has silvery sides with a central broad dark band that starts just behind the gills and runs to the caudal fin. The colour of the band varies greatly in intensity between individuals of the species.
