PLATE XL. 



Fig. 1. Triforis inflata, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



c. The apex, magnified. 



d. The sculpture, magnified. 



PAGE 



564 



Fig. 2. Cerithium matukense, n. sp. 



a, b. The shell, natural size; back and front 

 view. 



c. The natural size of 



d. The apex, enlarged. 



533 



Fig. 3. Cerithium phoxum, n. sp. . 



a. The natural size. 



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



Fig. 4. Cerithium lissum, n. sp. 



a. The natural size. 



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



Fig. 5. Bittium amboinense, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



d. The apex, magnified. 



d. The apex, magnified. 



c. The sculpture, magnified. 



534 



535 



544 



Fig. 6. Bittium mamillanum, n. sp. 

 a. The natural size of 



Fig. 7. Bittium pigrum, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



| b. A fragment of the shell, enlarged. 



c. The apex, magnified. 



d. The sculpture, magnified. 



543 



545 



