PLATE XXXIX. 



Fig. 1. Bittium oosimense, n. sp. 



a. The natural size. 



b. The shell enlarged 



c. The apex, magnified. 



d. The sculpture, magnified 



PAGE 



548 



Fig. 2. Bittium gemmatum, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



c. The apex, magnified. 



d. The sculpture, magnified. 



547 



Fig. 3. Bittium enode, n. sp. 



o. The natural size. 

 6. The shell, enlarged. 



c. The apex, magnified. . 



d. The sculpture, magnified. 



541 



Fig. 4. Tr if oris levukensis, n. sp. . 



a. The natural size. 

 6. The shell, enlarged. 



c. The apex, magnified. 



d. The sculpture, magnified. 



561 



Fig. 5. Bittium cylindricum, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



c. The apex, magnified. 



d. The sculpture, magnified. 



550 



Fig. 6. Bittium amblyterum, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



c. The apex, magnified. 



d. The sculpture, magnified. 



542 



