5 



List of British Mollusca and S'.icUs; with Synonyma. By 

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Catalogue of Pulmouata. By Dr. Louis Pfeiffek and Dr. 

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Catalogue of the Collection of Mazatlan Shells. By P. P. Car- 

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List of Mollusca. By Dr. J. E. Gray, F.R.S. 

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IV. RADIATA. 



Catalogue of Marine Polvzoa. By G. Bubk, F.R.S, 



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List of British Radiata; with Synonyma. By Dr. J. E. Gray, 

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List of British Sponges ; with Synonyma. By Dr. J. E. Gray, 

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Catalogue of the Recent Echinida. By Dr. J. E. Gray, F.R.S. 



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V. BRITISH ZOOLOGY. 



List of the British Animals ; with Synonyma and references to 

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