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1881. EiDLEY, S. 0. "Spongida collected during the Expe- 

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1884. " Spongida." Reports on the Zoological Collections 



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1826. Risso, A. " Histoire Naturelle des principales Pro- 

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1909. Eow, R. W. H. " Reports on the Marine Biology of the 

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1913 ? " Report on the Calcarea obtained by the Hamburg 



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1864. Schmidt, Oscar. " Die Spougien des Adriatischen 

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1864, " Supplement der Spongien des Adriatischen 



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1868. " Die Spongien der Kiiste von Algier, mit Nach- 



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1870. " Grundziige einer Spongien-Eauna des Atlant- 



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1877. ScHUEFNER, 0. " Besclireibung einiger neuer Kalk- 

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1875. ScHULZE, E. E. " Ueber den Bau und die Entwicklung 

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1912. Stephens, (Miss) J. " Clare Island Survey. Part 59. 

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1908. Thacker, A. Gc, " On Collections of the Cape Verde 

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1907. TopsENT, E. " Epouges calcaires recueillis par le Erangais 

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1869. Ulrich, E. O. " Preliminary Description of new Lower 



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