i8o Studies in Gkology, No. 3 



Plate II. 



Figs. 1,2. Nassa zorritensis (Nelson). 



3. Triumphis solida (Nelson). 



4. Murex laquoratus Spieker. 

 5,6. Pyrula peruviana Spieker. 

 7,8. Cypraea angustirima Spieker. 



9. Cerithiuni infranodatum Spieker. 



10. Cerithiuni grillanum Spieker. 



11. Potamides ormei var. infraliratus Spieker. 



12. Turritella altilira Conrad. 



13. Turritella alturana Spieker. 



