PLATE 30. 



LlOSPH^RIDA et ASTEOSPH^RIDA. 



Diam. Page 

 Fig. 1. Cromyechinus icosacanthus, n. sp., . x 300 263 



Fig. 2. Cromyomma villosum, n. sp., . . . x 300 261 



Fig. 3. Cromyechinus dodecacanthus, n. sp., x 400 264 



Fig. 3a. The innermost shells. 



Fig. 4. Ctomyomma circumtextum, n. sp., . . x 300 262 



Fig. 5. Cromyomma mucronatum, n. sp., . x 200 263 



Fig. 5(t. The innermost shells. 



Fig. 6. Cromyodrymus abietinus, n. sp., x 300 265 



Fig. 7. Cromyodrymus quadricuspis, n. sp., . x 400 264 



Fig. 7n. The inner concentric shells. 



Fig. 8. Cromyomma perspicuum, n. sp., x 300 262 



Fig. 9. Cromyosphara quadruplex, n. sp., . x 300 84 



Fig. 9a. The innermost shells. 



