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PROCEEDINGS OF THE NATIONAL MUSEUM 



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Figure 2.— Development and eelationships of the genera of the Polymorphinidae, 



1, 2. EOGUTTTJLINA. 3. QUADRULINA. 4. PaLEOPOLYMORPHINA. 5. GUTTUUNA. 6, 7. 



sigmoidella. 8. sigmomorphina. 9. polymobphina. 10, 11. pseddopolymorphina. 

 12. Qlobulina. 13. Pyeulina. 14. Glandulina 



