EXPLANATION OF PLATES. 



PLf\TE 26. PAGE 



NUCLEOCRINUS CUCULLATUS, N. Sp. (Rowley.) 77 



FIGS. 1-2. — Anal side and ventral views of the 

 tj'pe e| eeimen. 



NUCLEOCRINUS VERNEUILI, Var. Infktos, N. Var. (Rowley.) 78 



FIG. 3. — Side view of a specimen. 

 FIG. 4. — Basal view of another specimen. 

 FIG. 5. — Summit view of a different specimen. 



NUCLEOCRINUS VERNEUILI, Var. Solcatus, N. Van (Rowley.) 78 



FIGS. G-7. — Side and basal views of the type 



specimen. 

 FIG. S. — Summit view of another specimen. 



NUCLEOCRINUS VERNEUILI, Tfoost. Rowley. 79 



FIG. 9. — Side view of an elongate specimen, 



FIG. 10. — Anal side view of a more rotund specimen. 



FIGS. 14-1.5. — Side and summit views of a small 

 elongate specimen. 



FIG. 18. — Anal side view of an elongate specimen 

 with contracted base. 



FIG . 19. — Side view of a strongly ornamented speci- 

 men. 



FIG. 21.— End view of an imperfect elongate speci- 

 men. (Base.) 



FIG. 22. — Side view of a small elongate specimen, 

 perfectly circular in cross section. 



FIG. 11. — Side view of an elongate, pentangular 

 specimen. 



FIG. 12, — Anal side view of an elongate, pentangular 

 specimen. 



FIG. 20. — Side view of another elongate, pentangu- 

 lar specimen. 



NUCLEOCRINUS VERNEUILI, Var. Pomum (?) Etheridge & Carpenter. Rowley. 79 



FIG. 17. — Side view of a plump specimen, showing 



strong ornamentation. 

 FIG. 16. — Anal side view of another specimen. 



NUCLEOCRINUS VERNEUILI, Troost. Rowley. 80 



FIG. 13. — Side view of the largest specimen in the 

 collection. 



