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Margarites scintillans
''Margarites scintillans'' is a species of sea snail, a marine gastropod mollusk in the family Margaritidae.〔Rosenberg, G. (2012). ''Margarites scintillans'' (Watson, 1879). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=533039 on 2012-09-01〕
==Description==
The height of the shell attains 5 mm. The small, thin, white shell has a very depressedly conoidal shape. It is angulated, and tumid on the base. It has a small umbilicus. The aperture is semioval. Its sculpture is perfectly smooth but for some curved puckerings which radiate from the umbilicus, but very soon die out. Above the middle the body whorl is roundly angulated. The color of the shell is pure white, with a transparent calcareous layer over brilliant fiery pearly nacre. The spire is very depressedly conical. The apex is bluntly rounded, with a minute hyaline, depressed embryonic tip. The 4 whorls are barely convex. The suture is slightly impressed. The aperture is semi oval. The thin outer lip is barely angulated at the periphery. The inner lip is straight, patulous, and right-angled at its junction with the base.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia ) (described as ''Margarita scintillans'')〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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