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Cyclostrema spiculigerum : ウィキペディア英語版 | Cyclostrema spiculigerum
''Cyclostrema spiculigerum'' is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.〔(J.C. Melvill (1912), Descriptions of 33 new Gastropoda from the Persian Gulf, the Gulf of Oman and North Arabian Sea; Proceedings of the Malacological Society of London v. 10 (1912-1913) )〕 ==Description== The height of the shell attains 2 mm, its diameter 3 mm. The small, white shell has a depressed discoidal shape and shows a deep umbilicus. It contains 4 whorls, including the two apical whorls. The aperture is round. The thin peristome is continuous. This species is remarkable for the coronal of equidistal abbreviated spicules, which denote the uppermost and most strongly developed of the spiral lirae in the two lowest whorls.〔
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「Cyclostrema spiculigerum」の詳細全文を読む
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