PLATE VIII. 



Fig. 1. Scissurella aha, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 2. Scissurella declinans, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 3. Scissurella aedonia, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 4. Scissurella coronata, n. sp. 



«. The natural size. 

 6. The shell, enlarged. 



Fig. 5. Scissurella obliqua, n. sp. . 



a. The natural size. 



b. The shell, enlarged. 



Fig. 6. Schismope carinata, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 7. Schismope tabulata, n. sp. 



«. The natural size. 

 b. The shell, enlarged. 



Fig. 8. Schismope lacuniformis, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 9. Cyclostrema conicum, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 10. Cyclostrema excavatum, n. sp. 



a. The natural size. 

 /;. The shell, enlarged. 



Fig. 11. Cyclostrema sulcatum, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



c. The base, enlarged. 



c. The base, enlarged. 



J. The sculpture, magnified 70 diameters. , 



c. The base, enlarged. 



d. The sculpture, magnified 60 diameters. 



c. The base, enlarged. 



d. The sculpture, magnified 50 diameters. 



c. The base, enlarged. 



c. The base, enlarged. 



d. The sculpture, magnified 60 diameters. 



c. The base, enlarged. 



d. The sculpture, magnified 70 diameters. 



c. The base, enlarged. 



c. The base, enlarged. 



c. The base, enlarged. 



c. The base, enlarged. 



Fig. 12. Solarium (Torinia) rosulentum, n. sp. 



a. The natural size. c. The base, enlarged. 



b. The shell, enlarged. 



PAGE 



113 



115 



114 



114 



116 



119 



. 117 



118 



Fig. 13. Bifrontia pemambucensis, n. sp. 



a. The natural size. 



b. The shell seen from above, enlarged 



122 



121 



121 



136 



137 



c. The shell seen in face, enlarged. 



d. The base, enlarged. 



