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・ Herpetopoma fimbriatum
・ Herpetopoma helix
・ Herpetopoma howensis
・ Herpetopoma instrictum
・ Herpetopoma larochei
・ Herpetopoma lischkei
・ Herpetopoma mariae
・ Herpetopoma naokoae
・ Herpetopoma norfolkensis
・ Herpetopoma pauperculum
・ Herpetopoma poichilum
・ Herpetopoma pruinosum
・ Herpetopoma pumilio
・ Herpetopoma ringens
・ Herpetopoma rubrum
Herpetopoma scabriusculum
・ Herpetopoma serratocinctum
・ Herpetopoma seychellarum
・ Herpetopoma stictum
・ Herpetopoma sulciferum
・ Herpetopoma vixumbilicatum
・ Herpetopoma xeniolum
・ Herpetosiphon
・ Herpetosiphon giganteus
・ Herpetosiphonaceae
・ Herpetosiphonales
・ Herpetoskylax
・ Herpetotheriidae
・ Herpetotherium
・ Herpf


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Herpetopoma scabriusculum : ウィキペディア英語版
Herpetopoma scabriusculum

''Herpetopoma scabriusculum'', common name the rough top shell, is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.〔Bouchet, P. (2012). ''Herpetopoma scabriusculum'' (A. Adams & Angas, 1867). Retrieved through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=547214 on 2013-04-14〕〔Higo, S., Callomon, P. & Goto, Y. (1999) Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan. Elle Scientific Publications, Yao, Japan, 749 pp.〕
==Description==
The height of the shell attains 5.5 mm.
The small, very minutely perforate, thick shell has a conoidal shape. It is, ashen reddish. The five whorls are separated by canaliculate sutures, convex, the embryonic ones smooth, the rest roughened. The whorls are spirally cingulate, with four unequal cinguli on the penultimate whorl, the upper two smaller, the third forming a carina. There is sometimes a delicate riblet between the 3d and 4th lirae. The body whorl is subrotund, with unequal, alternating cinguli. The base of the shell is convex, with 5-6 concentric beaded cinguli. The interstices are clathrate. The aperture is subovate, sulcate inside. The thick outer lip is duplicate. The basal margin is plicate-dentate, and deeply notched. The columellar callous is a little reflexed above, passing into the right margin. The operculum is multispiral.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia ) (described as ''Euchelus scabriusculus'')〕

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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