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・ Odostomia terebellum
・ Odostomia terissa
・ Odostomia terrieula
・ Odostomia testiculus
・ Odostomia thalia
・ Odostomia thea
・ Odostomia tomlini
・ Odostomia torrita
・ Odostomia trachis
・ Odostomia tremperi
・ Odostomia trifida
・ Odostomia trimariana
・ Odostomia tropidita
・ Odostomia truncatula
・ Odostomia turgida
Odostomia turricula
・ Odostomia turriculata
・ Odostomia turrita
・ Odostomia tyleri
・ Odostomia ulloana
・ Odostomia umbilicaris
・ Odostomia umbilicatissima
・ Odostomia unalaskensis
・ Odostomia unidens
・ Odostomia unidentata
・ Odostomia unilineata
・ Odostomia vaga
・ Odostomia valdezi
・ Odostomia valeroi
・ Odostomia vancouverensis


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Odostomia turricula : ウィキペディア英語版
Odostomia turricula

''Odostomia turricula'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔Rosenberg, G. (2011). ''Odostomia turricula'' Dall & Bartsch, 1903. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581265 on 2012-01-12〕〔Turgeon, D.; Quinn, J.F.; Bogan, A.E.; Coan, E.V.; Hochberg, F.G.; Lyons, W.G.; Mikkelsen, P.M.; Neves, R.J.; Roper, C.F.E.; Rosenberg, G.; Roth, B.; Scheltema, A.; Thompson, F.G.; Vecchione, M.; Williams, J.D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp.〕
==Description==
The milk-white shell has a very elongate-ovate shape. Its length measures 4 mm. The whorls of the protoconch are smooth, obliquely immersed in the first of the succeeding turns, above which only the tilted edge of the last volution projects. The five whorls of the teleoconch are moderately rounded, very broadly tabulately shouldered at the summit, and moderately contracted at the periphery. They are marked by low, feebly developed axial ribs, which are best shown at the angle of the shoulder and scarcely extend to the suture. In addition to the axial ribs, the whorls are marked by well-incised spiral lines, of which 7 occur between the sutures on the second and 9 upon the third and the penultimate turn. The periphery and base of the body whorl are well rounded, the latter somewhat produced. They are marked by the very feeble continuation of the axial ribs and eight spiral lines. The aperture is ovate. The posterior angle is squarely truncated. The outer lip is thin. The columella is strongly curved and reflected over the reinforcing base. It is provided with a strong fold at its insertion. 〔 (A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68,p. 179-180; 1909 ) 〕

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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