Lake Malawi, also known as Lake Nyasa in Tanzania and Lago Niassa in Mozambique, is an African Great Lake and the southernmost lake in the East African Rift system, located between Malawi, Mozambique and Tanzania.
The Chinese mystery snail, black snail, or trapdoor snail, is a large freshwater snail with gills and an operculum, an aquatic gastropod mollusk in the family Viviparidae. The Japanese variety of this species is black and usually a dark green, moss-like alga covers the shell.
Buccochromis atritaeniatus is a species of haplochromine cichlid. It is found in Lake Malawi in Malawi, Mozambique, and Tanzania. Its natural habitat is freshwater lakes and intermediate and sandy areas and has been caught between 10 and 40 meters; it feeds on Haplochromines and hunts in pairs or large groups. Breeding males are found in colonies at depths about 30 meters and, while breeding, build sandcastle nests on steeply sloping sandy shores. The only known threat is fisheries and is known as Haplochromis mbowe in the fishing trade. Although FishBase and the Catalog of Fishes recognise this species, the IUCN treats it as a junior synonym of Buccochromis nototaenia.
Bellamya constricta is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
Bellamya ecclesi is a species of large freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae. This species is found in Malawi and Mozambique. Its natural habitat is freshwater lakes.
Bellamya phthinotropis is a species of large freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
Bellamya robertsoni is a species of large freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
Bellamya trochlearis is a species of large freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
Bulinus nyassanus is a species of small air-breathing freshwater snail with a sinistral shell, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ramshorn snails and their allies. This species is endemic to Lake Malawi in Africa, where found both in shallow and relatively deep water. Its shell generally reached a size of up to around 14 mm × 11 mm.
Gabbiella stanleyi is a species of small freshwater snails with an operculum, aquatic prosobranch gastropod mollusks in the family Bithyniidae.
Melanoides nyassana is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Thiaridae.
Melanoides pergracilis is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Thiaridae.
Melanoides polymorpha is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Thiaridae.
Melanoides pupiformis is a species of freshwater snail, gastropod in the Thiaridae family. It is endemic to Lake Malawi. Its natural habitat is freshwater lakes. It is threatened by habitat loss.
Melanoides truncatelliformis is a species of gastropod in the Thiaridae family. It is endemic to Lake Malawi. Its natural habitat is freshwater lakes.
Melanoides turritispira is a species of gastropod in the Thiaridae family. It is endemic to Lake Malawi. Its natural habitat is freshwater lakes. It is threatened by habitat loss.
Potamonautes lirrangensis, the Malawi blue crab, is a species of freshwater crab in the family Potamonautidae. This common and widespread species is found in Lake Malawi, Lake Kivu, the upper Congo River Basin and Malagarasi River in the Democratic Republic of the Congo, Malawi, Rwanda, and Tanzania. In the freshwater aquarium trade it is sometimes sold under the synonym Potamonautes orbitospinus.
Bellamya is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Viviparidae.
Bellamya unicolor is a species of large freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
