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Lauria cylindracea : ウィキペディア英語版 | Lauria cylindracea
''Lauria cylindracea'', common name "the common chrysalis snail", is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Lauriidae. ==Description== For terms see gastropod shell The 3-4 x 1.8 mm shell is oval with a blunt apex and 5-6 weakly convex whorls. The last whorl has the largest diameter.The aperture with parietalis and with or without angular tooth. The margin is white, sharp and reflected in fully grown specimens, usually with a whitish parietal callus. The umbilicus is open and narrow. The shell colour is brown, transparent and shiny. It is weakly striated. Juveniles have additional folds visible from outside the shell. The animal is dark with lighter sides and foot. The upper tentacles are short, the lower tentacles very short.The animal crawls with the shell in a high and almost straight position.
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「Lauria cylindracea」の詳細全文を読む
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