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・ Cyclosporiasis
・ Cyclosporins
・ Cyclosportive
・ Cyclostationary process
・ Cyclosternum
・ Cyclosternum fasciatum
・ Cyclosternum pentalore
・ Cyclosticta
・ Cyclostoma
・ Cyclostomata
・ Cyclostomatida
・ Cyclostomatida (family list)
・ Cyclostome
・ Cyclostomella
・ Cyclostratigraphy
Cyclostrema
・ Cyclostrema amabile
・ Cyclostrema archeri
・ Cyclostrema bibi
・ Cyclostrema bushi
・ Cyclostrema cancellatum
・ Cyclostrema carinatum
・ Cyclostrema charmophron
・ Cyclostrema cingulatum
・ Cyclostrema crassiolatum
・ Cyclostrema dunkeri
・ Cyclostrema eumares
・ Cyclostrema eupoietum
・ Cyclostrema exiguum
・ Cyclostrema gyalum


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Cyclostrema : ウィキペディア英語版
Cyclostrema

''Cyclostrema'' is a genus of sea snails, marine gastropod mollusks in the family Liotiidae.
''Cyclostrema'' is a neuter word, but many authors have considered it feminine, including Captain Marryat himself.
A complete revision of the family Liotiidae is under way (2013). Many species, now included in ''Cyclostrema'', will eventually end up outside the family Liotiidae. (pers. comm.)
==Description==
The characteristics of this genus are : The depressed shell is white, or uniformly colored. The body whorl is obliquely striate. The spire short. The aperture is circular. The umbilicus is very large with the volutions of the whorls visible within it. The surface contains spiral ridges and is cancellated.〔(G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia )〕〔(Arthur Adams (1850) in Proceedings of the Zoological Society of London vol XVIII p. 41, 42 )〕

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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