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・ Odostomella
・ Odostomella africana
・ Odostomella bicincta
・ Odostomella carceralis
・ Odostomella doliolum
・ Odostomella knudseni
・ Odostomellini
・ Odostomia
・ Odostomia aartseni
・ Odostomia aciculina
・ Odostomia acrybia
・ Odostomia acuta
・ Odostomia acutangula
・ Odostomia acutidens
・ Odostomia aepynota
Odostomia aequisculpta
・ Odostomia aleutica
・ Odostomia alia
・ Odostomia aliquanta
・ Odostomia altina
・ Odostomia amanda
・ Odostomia americana
・ Odostomia amianta
・ Odostomia amilda
・ Odostomia angularis
・ Odostomia angusta
・ Odostomia armata
・ Odostomia astricta
・ Odostomia ata
・ Odostomia atossa


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

''Odostomia aequisculpta'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔Rosenberg, G. (2011). ''Odostomia aequisculpta'' Carpenter, 1864. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575817 on 2011-10-26〕 〔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.〕 〔Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064:〕
==Description==
The elongate-ovate shell is semitranslucent. Its length measures 2 mm. The whorls of the protoconch are deeply obliquely immersed, the tilted edge of the last only being visible. The whorls of the teleoconch are rounded, somewhat inflated. They are marked by strong, well-rounded, equal spiral keels, of which 4 occur upon the first, 5 on the second, and 6 between the sutures upon the penultimate turn, half of the peripheral one falling in the suture. Here too there is a tendency in the one at the summit to become split. The periphery and the base of the body whorl are well rounded. They are marked by six spiral cords, which grow successively weaker from the periphery to the base. The spaces between the cords and spire and base are narrow, marked by numerous, decidedly retractive axial threads. The sutures are well impressed. The aperture is broadly oval, somewhat effuse anteriorly. The posterior angle is acute. The outer lip is thin, showing the external sculpture within. The columella is strong, decidedly reflected anteriorly, reinforced by the base. It is provided with a small fold at its insertion. The parietal wall is covered with a faint callus. 〔 (A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, 1909 Plate 20 # 3 ) 〕

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