PLATE 30. 



LlOSPILERIDA et AsTROSPILERIDA. 



Diam. Page 



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



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



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

 Fig. 3a. The innermost shells. 



Fig. 4. Cromyomma circumtextum, n. sp. 3 . . . x 300 262 



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



Fig. 5a. The innermost shells. 



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



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



Fig. 7a. The inner concentric shells. 



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



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



Fig. 9a. The innermost shells. 



