PLATE XXII. 



Fig. 1. Pleurotoma [Beta) ula, n. sp. 

 a. The natural size. 



Fig. 2. Pleurotoma ischna, n. sp. 

 a. The natural size. 



b. The shell, enlarged. 



6. The shell, enlarged. 



Fig. 3. Pleurotoma (Spirotropis) stirophora, n. sp. 



a. The'natural size. I b. The shell, enlarged. 



Fig. 4. Pleurotoma spicea, n. sp. 

 a. The natural size. 



Fig. 5. Pleurotoma (Genota) didyma, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



b. The shell, enlarged. 



c. The sculpture, magnified 25 diameters. 



Fig. 6. Pleurotoma (Surcula) bolbodes, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 7. Clathurella perpauxilla, u. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 8. Clathurella (?) perparva, n. sp. 



a. The natural size. 

 &. The shell, enlarged. 



Fig. 9. Clionella lophoessa, n. sp. 

 a. The natural size. 



c. The sculpture, magnified 15 diameters. 



c. The sculpture, magnified 40 diameters. 



c. The apex, magnified 40 diameters. 



Fig. 10. Clionella aglaophanes, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



b. The shell, enlarged. 



Fig. 11. Pleurotoma (Typhlomangelia) lincta, n. sp. 

 a. The natural size. 



Fig. 12. Clionella amblia, n. sp. . 



a.' The natural size. 



b. The shell, enlarged. 



| b. The shell, enlarged. 



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