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Pilsbry, II. A. and Ferriss, J. II. 
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Pirson, L. V. and Schuchert, 0. A 
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317 
Pompeckj, J. F. Das meer des 
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Popple, E. On Acroloxus laeustris 
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Potts, F. A. The fauna associated 
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Preston, H. B. A further report on 
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Preston, II. B. Descriptions of a new 
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Preston, II. B. Zoological results of 
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Preston, H. B. Marginella shackle 
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Preston, H. B. vide Adams, L. E. 
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Reinke, E. E. The development of 
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Retzius, G. Ubor die Struktur des 
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Reynell, A. vide Sherborn, C. D. 
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