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Eulimella digenes : ウィキペディア英語版 | Eulimella digenes
''Eulimella digenes'' is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.〔WoRMS (2010). ''Eulimella digenes'' (Dautzenberg & Fischer, 1896). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=224478 on 2011-10-26〕〔Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.〕 ==Description== The shell size varies between 3 mm and 5 mm. The teleoconch whorls are slightly convex. The orthocline (i.e. at right angles to the growth direction of the cone) growthlines are inverted-S-shaped. The columella lacks a tooth or fold. 〔 (J.J. van Aartsen, E. Gittenberger & J. Goud, Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 2) ) 〕
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