PLATE II. 



Figure 1. Lithar^a epithbcata, Duncan. The upper part of a broken corallumj natural size. 

 The circular line gives the former dimensions of the coral. 



2. The base of the same specimen. 



3. The upper surface of a smaller specimen. 



4. The base. 



5. The base of a smaller specimen. 



6. The calices, weathered. 



7. The calices of Figure 1, highly magnified. 



8. A side view of the' edge of the corallumj to show the perforate condition of the septa, 



magnified. 



9. A portion of the base^ slightly magnified, to show faint costal striations. 

 10. A hemispherical variety. 



