PLATE X. 



Fig. 1. Murex (Tribulus) acanthodes, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



c. The apex, magnified 20 diameters. 



Fig. 2. Murex (Tribulus) acanthostephes, n. sp. 

 Fig. 3. Murex (Pseudomurex) p>holidotus, n. sp. . 



a. The natural size. 



b. The shell. 



Fig. 4. Typhis philip>pensis, n. sp. 



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



Fig. 5. Murex (PteronoUis) cordismei, n. sp. 



a. The natural size. 

 Fig. 6. Trophon acanthodes, n. sp. 



a. The shell, enlarged. 



Fig. 7. Tropjhon carduelis, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



| b. The shell, enlarged. 



&. The natural size. 



c. The operculum, enlarged. 



Fig. 8. Murex (Pseudomurex) pauper, n. sp. 

 a. The natural size. 



Fig. 9. Trophon acideatus, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 10. Trophon declinans, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 11. Trophon septus, n. sp. . 



a. The natural size. 



b, c. The shell, enlarged, back and front view. 



Fig. 12. Trophon scolopax, u. sp. 



a. The natural size. 



b, c. The shell, enlarged, front and back view. 



b. The shell, enlarged. 



c. The natural size of 



d. The young shell, magnified 10 diameters. 



c. The apex, magnified 15 diameters. 



d. The operculum, magnified 8 diameters. 



d. The operculum, magnified 6 diameters. 



PAGE 



151 



149 

 158 



162 



156 



166 



167 



159 

 169 



168 



170 



171 



