EXPLANATION OF PLATE 69 



Fig. 1. Cerithium rodeoensis, n. sp. Altitude, 17 mm. Neither of the speci- 

 mens figured shows the longitudinal ribbing usually seen on the whorls of the 

 spire. Natural size. 



Fig. 2. Murex (Ocinebra) packardi, n. sp. Altitude, 41 mm. Natural size. 



Fig. 3. Olivella pedroana Conrad. Altitude, 15 mm. Natural size. 



Fig. 4. Natice (Euspira) kirkensis, n. sp. A very common species in the 

 Lower San Pablo; also found in the Scutella breweriana zone. Altitude, 32 mm. 

 Natural size. 



Fig. 5. Turris Tcirkensis, n. sp. Altitude, 13 mm. Enlarged twice natural 

 size. 



Fig. 6. Turris kirkensis, n. sp. Enlarged twice natural size. 



Fig. 7. Turris Tcirkensis, n. sp. Altitude, 10 mm. Enlarged twice natural 

 size. 



Fig. 8. Columbella Tcirkensis, n. sp. Altitude, 10 mm. Enlarged twice nat- 

 ural size. 



Fig. 9. Natice (Euspira) Tcirkensis, n. sp. Altitude, 35 mm. 



Fig. 10. Cerithium rodeoensis, n. sp. Altitude, 15 mm. Enlarged twice nat- 

 ural size. 



Fig. 11. Murex (Ocinebra) packardi, n. sp. Altitude, 31 mm. Natural size. 



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