Lanistes ovum explained

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^{[1] [2] [3]} and South Africa.^[4]

Habitat

These snails are found at an altitude of between 0 and 920 m (3,018 feet).^[5]

Notes and References

1. http://www.applesnail.net/content/species/lanistes_ovum.htm Lanistes Ovum
2. https://books.google.com/books?id=iX81vNPrs_4C&dq=lanistes+ovum&pg=PA430 Freshwater Snails of Africa and Their Medical Importance
3. http://biosurvey.conservation.org/portal/server.pt/gateway/PTARGS_0_2_125281_0_0_18/RAP%2027_Botswana_1.pdf#page=58
4. Appleton C. C., Forbes A. T.& Demetriades N. T. (2009). "The occurrence, bionomics and potential impacts of the invasive freshwater snail Tarebia granifera (Lamarck, 1822) (Gastropoda: Thiaridae) in South Africa". Zoologische Mededelingen 83. http://www.zoologischemededelingen.nl/83/nr03/a04
5. http://zipcodezoo.com/Animals/L/Lanistes_ovum/ Lanistes Ovum