Snail - Snail

Japanese: タニシ(田螺) - タニシ

A snail shell of the family Snailidae. Four species are native to Japan. The Ootanishi (6.5cm tall) lives in rivers and lakes from southern Hokkaido to Kyushu, the Marutanishi (6cm) inhabits lakes and rice paddies from Hokkaido to Kyushu, Ishigaki Island, and the Korean Peninsula, and the Himetanishi (3.5cm) inhabits ponds from Honshu to Kyushu. The Nagatanishi (5cm) is endemic to the Lake Biwa water system. All have grey-black bodies and brown opercula. They are ovoviviparous, laying young shells in the summer and hibernating in the mud in the winter. The opercula fits snugly around the shell opening, so it can withstand drying out. They are edible. The Himetanishi is used as animal feed.

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

タニシ科の巻貝。日本産は４種。オオタニシ（高さ6.5cm）は北海道南部〜九州の河川，湖沼に，マルタニシ（6cm）は北海道〜九州，石垣島，朝鮮半島の湖沼や水田に，ヒメタニシ（3.5cm）は本州〜九州の池沼にすむ。ナガタニシ（5cm）は琵琶湖水系特産種。いずれも体は灰黒色，ふたは褐色。卵胎生で，夏に幼貝を産み，冬は泥中に入って越冬。ふたは殻口にぴったり合うため乾燥にも耐える。食用になる。ヒメタニシは飼料用。

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