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Vaceuchelus scrobiculatus : ウィキペディア英語版 | Vaceuchelus scrobiculatus
''Vaceuchelus scrobiculatus'' is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae. ==Description== The height of the shell attains 8 mm. The imperforate, dull white shell has an ovate-conic, subventricose shape. The apex rather obtuse. The shell is ornamented with strong spiral subnodose ribs, decussated by elevated rib-striae cutting the interstices into square pits, of which there are 3 or 4 series on the third whorl, 4 on the penultimate, and 7 on the last. The five whorls are rounded and separated by a deep, subcanaliculate suture. The oblique aperture is rounded, and sub-pearly. The outer lip is duplicate. It has an acute edge. it is crenulated, and sulcate inside. The simple columella is vertical.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia )〕
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