PLATE XXXI. 



Fig. 1. Verrnetus (?) cyclicus, n. sp. 



a. The natural size. 



b. The shell, magnified 30 diameters, seen in 



profile. 



Fig. 2. Odostomia hyphala, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 3. Odostomia corpulenta, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



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465 



c. The shell, magnified 30 diameters, seen from above. 



d. The apex, lying across the last whorl, magnified 70 



diameters. 



c. The apex, magnified 25 diameters. 



e. The apex, magnified 2.3 diameters. 



483 



484 



Fig. 4. Odostomia oxia, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 5. Odostomia scopidorum, n. sp. 



a. The natural size. 



b. The shell, magnified 35 diameters. 



Fig. 6. Odostomia oodes, n. sp. 



a. The natural size. 



b. The shell, magnified 25 diameters. 



Fig. 7. Odostomia pupa, n. sp. 



a. The natural size. 

 6. The shell, enlarged. 



a. The apex, magnified 40 diameters. 



c. The apex, magnified GO diameters. 



c. The apex, magnified 45 diameters. 



c. The apex, magnified 30 diameters. 



484 



485 



485 



48(5 



Fig. 8. Odostomia hymatodes, n. sp. 



a. The natural size. 

 (i. The shell, enlarged. 



c. The apex, magnified 50 diameters. 



d. A young shell, enlarged. 



486 





