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Prothalotia suturalis
''Prothalotia suturalis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.〔Marshall, B. (2013). Prothalotia suturalis (A. Adams, 1853). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720365 on 2014-02-20〕
==Description==
The height of the shell attains 8 mm, its diameter also 8 mm. The small, solid, imperforate shell has a pyramidal shape. The apex is eroded, but the whorls apparently number six. They are flattened, slightly gradate, the body whorl descending a little at the aperture. The colour is pale yellow, tessellated with small, longitudinal undulating purple spots. The sculpture: low, flat-topped spiral ribs equal to the intervening spaces, on the body whorl twelve, of which half are basal. The aperture is subquadrate. The columella is short and terminates below in a blunt tubercle. The sutures are impressed. The base of the shell is flat. The inner lip is turned inwards and is greenish. 〔 (Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia ) (described as ''Thalotia suturalis'')〕 〔 (C. Hedley (1908), Studies on Australian Mollusca. Part X; Proceedings of the Linnean Society of New South Wales v.33 (1908) ) (described as ''Cantharidus suturalis'')〕
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