G. 



DIAGNOSES 



New Species and a New Genus of Mollusks, 



THE REIGEN MAZATLAN COLLECTION; 



WITH AN ACCOUNT OF ADDITIONAL SPECIMENS PRESENTED TO 

 THE BPxITISH MUSEUM. 



BY 



PHILIP P. CARPENTER, B.A.. Ph.D. 



From the Proceedings of the Zoological Society of London, pp. 268-273, 

 March 14, 1865. 



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