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Turbonilla abreojensis
''Turbonilla abreojensis'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔Rosenberg, G. (2012). ''Turbonilla abreojensis'' Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575950 on 2012-03-01〕〔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 milk-white shell has a conic shape. (The whorls of the protoconch are decollated.) The length of the shell measures just over 5 mm. The ten whorls of the teleoconch are moderately well rounded, and very slightly shouldered at the summit. They are marked by mere indications of obsolete ribs near the summit of the early whorls, only. The sutures are well impressed. The periphery is well rounded. The base of the shell is moderately long, and well rounded. The surface of the spire and the base is marked by fine, closely crowded, spiral striations. The aperture is oval. The posterior angle is acute. The columella is rather strong, moderately curved, and somewhat revolute. It is provided with an oblique fold a little anterior to the insertion. 〔 (Dall & Bartsch (1909), ''A Monograph of West American Pyramidellid Mollusks'', United States National Mollusks, bulletin 68; p. 59 ) 〕
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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