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・ Calliostoma syungokannoi
・ Calliostoma takaseanum
・ Calliostoma takujii
・ Calliostoma tampaense
・ Calliostoma hernandezi
・ Calliostoma heros
・ Calliostoma heugteni
・ Calliostoma hexalyssion
・ Calliostoma hilare
・ Calliostoma hirondellei
・ Calliostoma hirtum
・ Calliostoma houarti
・ Calliostoma houbricki
・ Calliostoma imperiale
・ Calliostoma incertum
Calliostoma indiana
・ Calliostoma insignis
・ Calliostoma interruptus
・ Calliostoma iridescens
・ Calliostoma iridium
・ Calliostoma iris
・ Calliostoma irisans
・ Calliostoma iwamotoi
・ Calliostoma iwaotakii
・ Calliostoma jackelynae
・ Calliostoma jacquelinae
・ Calliostoma jamiesoni
・ Calliostoma javanicum
・ Calliostoma jeanneae
・ Calliostoma joanneae


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Calliostoma indiana : ウィキペディア英語版
Calliostoma indiana

''Calliostoma indiana'' is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.〔Rosenberg, G. (2012). ''Calliostoma indiana'' Dall, 1889. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532524 on 2012-12-07〕
==Description==
''Calliostoma indiana'' is the type of Dall's section Eucasta, characterized by a moderate sulcus near the periphery on the shell, producing a fasciole as in ''Pleurotomaria''. The height of the shell attains 11 mm. The thin shell has a conical shape. It is yellowish, with faint brown articulations on the spirals. It has a minute sinistral nucleus, and six and a half whorls. Its radiating sculpture consists of flexuous iucremental lines, and fine wrinkles, which are more prominent toward the periphery on the body whorl and on the early whorls reticulate the spiral sculpture. On the body whorl these lines extend backward with moderate obliquity to the periphery, just above which is the fasciole caused by a well-marked but shallow rounded sulcus. On the base they make a deep rounded concave sweep backward, and then ascend toward the base of the columella. The spiral sculpture on the early whorls comprise two sharp narrow little elevated threads at the periphery, three, less contiguous, above the fasciole, and one near the suture, neatly reticulated by the wrinkles and minutely nodulous at the intersections. The spirals over most of the shell are strap-like, flattened, narrow, and distinctly marked off from the impressed broader interspaces. On the body whorl there is a single smooth flat thread below the nodulated one next the suture, and two run in the middle of the fasciole. The peripheral thread has become single and much stronger than the others. On the base of the shell there are seven spirals, faintly nodulous, articulated with pale brown, and separated by much wider impressed interspaces, over which are a few fine spiral lines. The base is flattened, or even a little concave. The columella is moderately arcuate. The aperture is four-sided. There is no umbilical pit.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia )〕

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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