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Lirularia canaliculata : ウィキペディア英語版 | Lirularia canaliculata
''Lirularia canaliculata'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae. ==Description== The height of this small shell measures 3 mm. It is broadly umbilicated, pearly and beautifully prismatic. The spire is depressed-conical. It contains five whorls, the first two are smooth, the remainder spirally lirate, and ornamented beneath the channelled sutures with a series of white tubercles, here and there marked with brown. The body whorl is encircled by chestnut-dotted carinae. The base of the shell contains a purple-brown zone. The umbilicus is perspective, margined by a somewhat tubercular cord. The aperture is subcircular. 〔 (Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia ) (described as ''Minolia canaliculata'')〕
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