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— islandicus — DanreLssen, Berétn. om en Zool. Reise, p. 22. 
= — — Forges et GopwiN-AusTen, Nat. Hist. of the europ. Seas, p. 49, 290. 
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DHPSÈRNE Dr ur. 
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19 ET 
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—  islandicus Müll., Môrcn, Catal. Lassen, p. 20. 
—  Îslandicus 
—  islandicus 
— Islandicus 
—  islandicus 
—  Islandicus 
—  islandicus 
—  Islandicus 
—  islandicus 
—  Islandicus 
—  islandicus 
Jerrreys, Brit. Conch. II, p. 58. 
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