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''Archachatina marginata'', common name the Giant West African Snail or Banana rasp snail, is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinidae. They can grow up to 20 cm long, and live up to 10 years. ==Distribution== This species occurs in Western Africa: Cameroon through Democratic Republic of the Congo and can be found in the Caribbean, in Martinique. How the species reached Martinique is unknown, but it is possible they were intentionally introduced as "pets" or by workers returning from West Africa. The natural spread of this species is very slow, however, unintentional spread by individuals for food and as folk medicine is very common. The USDA is routinely checking for the species in the luggage of travelers from West Africa, Nigeria particularly, Ghana and Cameroon. This species has not yet become established in the United States, but it is considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore it has been suggested that this species be given top national quarantine significance in the United States.〔Cowie R. H., Dillon R. T., Robinson D. G. & Smith J. W. (2009). "Alien non-marine snails and slugs of priority quarantine importance in the United States: A preliminary risk assessment". ''American Malacological Bulletin'' 27: 113-132. (PDF ).〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Archachatina marginata」の詳細全文を読む スポンサード リンク
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