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Acteon tornatilis : ウィキペディア英語版 | Acteon tornatilis
''Acteon tornatilis'', common name the "lathe acteon", is a species of medium-sized sea snail, a predatory marine gastropod mollusc in the family Acteonidae, the barrel bubble snails.〔Gofas, S. (2014). Acteon tornatilis (Linnaeus, 1758). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138691 on 2014-12-12〕 ==Description== ''Acteon tornatilis'' has a shell reaching a length of . The body size reaches . This sea snail is the major representative of the Acteonidae in European waters. The basic colour of the shells is pink or pale brown with white bands. The shell is thick, glossy and ridged transversely, with 6-7 large whorls, filled with alternating wider light brown spiral bands and smaller pinkish stripes. The outer lip is white. The shell is elongate and ovate with a sharp apex. The aperture is narrow at the posterior notch but wider at the base. The columella is slightly thickened and twisted.
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