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Prothalotia flindersi
''Prothalotia flindersi'', common name the Flinders top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.〔Bouchet, P. (2012). ''Prothalotia flindersi'' (P. Fischer, 1878). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=573218 on 2012-11-23〕
==Description==
The height of the shell attains 16 mm, its diameter 13 mm. The rather thick, very narrowly perforate shell has a conical shape. It contains 7 to 8 planulate whorls. The first one is eroded, the succeeding are whitish-ashen, radiated with narrow, close and flexuose blackish and violaceous lines. They are spirally cingulate, with 6 lirae on penultimate whorl. The body whorl is subangular, a little depressed above, dilated in the middle. The base of the shell is convex and ornamented with about 8 lirae. The aperture is rhomboidal. The lip is simple. The truncate columella is truncate below.〔(Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia ) (described as ''Cantharidus flindersi'')〕
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