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・ Clane College
・ Clanculus cristinae
・ Clanculus cruciatus
・ Clanculus denticulatus
・ Clanculus depictus
・ Clanculus dunkeri
・ Clanculus edentulus
・ Clanculus escondidus
・ Clanculus eucarinatus
・ Clanculus euchelioides
・ Clanculus flagellatus
・ Clanculus floridus
・ Clanculus flosculus
・ Clanculus gemmulifer
・ Clanculus granti
Clanculus guineensis
・ Clanculus johnstoni
・ Clanculus jucundus
・ Clanculus jussieui
・ Clanculus kinzelbachi
・ Clanculus korkosi
・ Clanculus kraussii
・ Clanculus largillierti
・ Clanculus laurae
・ Clanculus leucomphalus
・ Clanculus limbatus
・ Clanculus margaritarius
・ Clanculus mariaemaris
・ Clanculus maugeri
・ Clanculus mauritianus


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Clanculus guineensis : ウィキペディア英語版
Clanculus guineensis

''Clanculus guineensis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
==Description==
The size of the shell varies between 15 mm and 25 mm. The very solid shell has a conical shape. It is, rather depressed, angulate at the periphery and deeply umbilicate. Its color is whitish, painted with hbroad radiating purplish brown stripes above. The base of the shell shows narrow radiating stripes or tessellations of the same shade. The about six whorls are planulate or slightly concave above. The whitish apex is eroded. The succeeding whorls are spirally beaded. The body whorl slightly descends anteriorly, bearing on the upper surface about 7 spiral beaded lirae. The interstices are obliquely finely striate. The base is subplanulate, concentrically sculptured with about 7 or 8 beaded lirae. The rounded aperture is rhomboidal. The outer and basal lips are thick, evenly and finely plicate within. The columella is oblique, deeply entering, conspicuously fielded near its insertion. Its edge is denticulate near the base, and passing into the basal margin with a regular curve. The parietal wall bears a white wrinkled callus, the umbilical margin of which is dentate. The wide umbilicus is deep, scarcely narrowed as it penetrates, bordered by a strong acutely dentate rib.
It differs from the typical forms of ''Clanculus'' in lacking the strong tooth at the base of the columella. 〔 (H. Pilsbry, 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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