It is also named Rigatella. It's a small sized species, enlarge expecially on Toscana and Lazio. The number of the breeding farm is still limited,because of the restrict market in the above - mentioned places.
HELIX ASPERSA
It is also named Zigrinata or Maruzza, in France it is named Petit-gris or Chagrine', in Spain it is known as caracolas.
It is perhaps the more enlarge on the mediterranean zone, because it is acclimate in warm places where there is the influence of maritime climate.
Its conically shell looks convex upward and ample down, with 3-4 helix. This species is more then the 70 % of the heritage of breeding of edible snails in Italy. it is selected because it grows to maturity quickly: after only 12 mounth of nutrition.
The Helix snail is a food rich in protein of great biological value (12%), it contains a small quantity of fat (0,9%) and glucide. The mineral nutritive substance are plenty contained: expecially cuprum, calcium, magnesium and zinc; so it is proper in case of insufficiency of proteine as a result of debilitating of diseases in old person, on pregnancy and breast-feeding, after operations, in case of anaemia.