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・ Turbonilla sanctorum
・ Turbonilla sanjuani
・ Turbonilla sanmatiensis
・ Turbonilla santamariana
・ Turbonilla santarosana
・ Turbonilla santosana
・ Turbonilla scala
・ Turbonilla scalaeformis
・ Turbonilla scalpidens
・ Turbonilla scammonensis
・ Turbonilla scapulata
・ Turbonilla scarabinoi
・ Turbonilla schlumbergeri
・ Turbonilla nereia
・ Turbonilla nesiotes
Turbonilla newcombei
・ Turbonilla nicaraguana
・ Turbonilla nicarasana
・ Turbonilla nicholsi
・ Turbonilla nicoyana
・ Turbonilla nihilfere
・ Turbonilla nivea
・ Turbonilla nodoscalare
・ Turbonilla nodulyrata
・ Turbonilla nofronii
・ Turbonilla nonica
・ Turbonilla nuttalli
・ Turbonilla nuttingi
・ Turbonilla nychia
・ Turbonilla oaxacana


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Turbonilla newcombei : ウィキペディア英語版
Turbonilla newcombei

''Turbonilla newcombei'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔Rosenberg, G. (2011). ''Turbonilla newcombei''. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581351 on 2012-04-21〕〔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 shell has a regularly, broadly conic shape. Its length measures 5.4 mm. It is white on the posterior half and light brown on the anterior half of the exposed portion of the whorl. The base of the shell is white. The whorls of the protoconch are decollated in all the studied specimens. The seven whorls of the teleoconch are somewhat overhanging. They are decidedly contracted toward the periphery from the anterior fifth of the exposed part. They are almost flattened posterior to this. They are closely appressed at the summit, and separated by strongly marked sutures. There are about 18 ribs upon all the turns. These ribs are almost vertical, moderately elevated, rounded in the middle, decidedly flattened and widened at the summit, disappearing at the periphery. The
intercostal spaces are not depressed below the general surface. They are a little wider than the ribs. The periphery and the moderately long base of the shell are well rounded, smooth, excepting the fine spiral striation which covers the entire surface of the shell. The aperture is subquadrate. The posterior angle is acute. The outer lip is thin, showing the color bands within. The columella is slender, oblique, and slightly revolute. 〔 (Dall & Bartsch (1909), A monograph of West American pyramidellid mollusks, United States National Museum, bulletin 68, p. 63 (described as ''Turbonilla (Pyrgolampros) newcombei'') ) 〕

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