PLATE XLIII. 



Fig. 1. Echinella tectiforrnis, n. sp. 

 a. The shell, natural size. 



Fig. 2. Barleeia imbricata, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



Fig. 3. Cithna margaritifera, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



b. The sculpture, magnified. 



c. The apex, magnified 70 diameters. 



PAGE 



578 



584 



580 



c. The sculpture round the top of the whorls, magnified. 



Fig. 4. Fossarus cereus, n. sp. 



a. The natural size. 



6, c. The shell enlarged, front and hack view. 



.582 



d. The head of the animal, showing part of the oper- 

 culum. 



Fig. 5. Jeffreysia edwardiensis, n. sp. 

 a. The natural size. 



584 



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



Fig. 6. Triforis bigemma, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



560 



c. The sculpture, magnified. 



Fig. 7. Triforis hebes, n. sp. 



a. The natural size. 



b. The shell, enlarged. 



561 



<*. The apex, magnified 40 diameters. 



d. The sculpture, magnified 20 diameters. 



