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Oxystele
''Oxystele'' is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails. ==Description== The depressed conical shell is dark or variegated in color. The large aperture is oblique. The concave columella is arcuate, thin-edged, perfectly simple and curved below. It is above spread over the umbilical area as a rounded, well-defined pad of callus.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia )〕 Patterns of the variegated shell color within the genus ''Oxystele'' are shown in the image : A–C ''Oxystele variegata'' from Namibia, 5 km north of Swakopmund, diameter 22.2 mm (NMSA E6038) D–F ''Oxystele impervia'' from the Western Cape, Groen Rivier, diameter 22.3 mm (NMSA E7353) G–I ''Oxystele'' sp. from the Eastern Cape, Tsitsikamma National Park, diameter 16.5 mm (HVDBM058-10, NMSA W7371); the colour pattern of these specimens suggests ''Oxystele variegata'', but these specimens group within the unit of ''Oxystele impervia'' J–L ''Oxystele'' sp. from the Northern Cape, Noup, diameter 18.0 mm (HVDBM185-10, NMSA W7608); the colour pattern suggests ''Oxystele impervia'', but they group with ''Oxystele variegata''
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