Lanistes ovum

Lanistes ovum is a species of freshwater snail with an operculum, an African apple snail, an aquatic gastropod mollusk in the family Ampullariidae.
The shell coiling in this species is left-handed, aka sinistral.
This species of snail is widely found in Botswana, Congo, Chad, Ghana, Cameroon, Gambia, Angola, Namibia, Niger, Nigeria, Tanzania, Mozambique, Zimbabwe and South Africa.
Habitat.
These snails are found at an altitude of between 0 and 920 m (3,018 feet).