20 Moll. 
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326. Marshall, J. T. Tapes geographicus and T. pullastra. J. Conch, 
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331. -. Das neue Auftreten der Helix obvia Menke ( candicans Pfr.). 
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332. -. Einige Schnecken der Cocosinsel. T. c. pp. 59-62. 
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