PLATE VI. 



PAGE 



Fig. 1. Turbo (Collonia) indutus, n. sp. . . . . . . 128 



a. The natural size. 



b. The shell, enlarged. 



c. The sculpture, enlarged. 



Fig. 2. Trochus (Ziziphinus) stirophorus, n. sp. . . . . . 60 



a. The natural size. I c. The sculpture of the apex, greatly magnified. 



b. The shell, enlarged. 



Fig. 2.* Sculpture of the apex of Trochus {Ziziphinus) occidental-is, Migh. 



Greatly magnified, for comparison. 



Fig. 3. Trochus (Ziziphinus) transenna, n. sp. . . . .62 



a. The natural size. 



b. The shell, enlarged. 



c. The sculpture, enlarged. 



Fig. 4. Trochus (Ziziphinus) tiara, n. sp. . . . . .60 



a. The natural size. | b. The shell, enlarged. 



Fig. 5. Trochus (Ziziphinus) arruensis, n. sp. . . . .57 



a. The natural size. I c. The sculpture, enlarged. 



b. The shell, enlarged. 



Fig. 6. Trochus (Gibbula) glyptus, n. sp. . . . . . .75 



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



b. The shell, enlarged. 



Fig. 7. Trochus (Gibbida) zonatus, Wood. . . . . .76 



a. The natural size. 



b. The shell, enlarged. 



c. The sculpture, enlarged. 



Fig. 8. Trochus (Solariella) albugo, n. sp. . . . . .75 



a. The natural size. I c. The base of shell, enlarged. 



b. The shell, enlarged. 



Fig. 9. Trochus (Solariella) lamprus, n. sp. . . . .74 



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



b. The shell, enlarged. 



Fig. 10. Trochus (Solariella) philippinensis, u. sp. . . . .73 



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



b. The shell, enlarged. 



Fig. 11. Turbo (Calcar) hcnicus, n. sp. . . . . . .130 



a. The shell. I c. The operculum, outer face. 



b. The base of the shell. 



Fig. 12. Turbo transenna, n. sp. . . . . . . .125 



a. The natural size. 



b. The shell, very slightly enlarged. 



c. The operculum, outer face. 



d. The sculpture, enlarged. 



