PLATE LV. 



Mgure 1. Breynia carinata, d'Archiac and Haime (page 343). Actinal view. 



2. The test, side view. 



3. The posterior view, with the subanal fasciole. 



4. The apical system, the internal fasciole, and the ambulacra within the fasciole, magnified. 



5. The peristomial area, showing the floscelle, the interradia coming to the oral margin, 



the wide posterior ambulacra, and the long and narrow plate of the posterior inter- 

 radium, magnified. 



6. A tubercle of the actinal surface, magnified. 



7. A tubercle of the same region, showing the hypertrophy of the crenulation on one side, 



magnified. 



8. A tubercle in its sunken scrobicule, from the abactinal surface, magnified. 



9. Brissus, sp. (page 354) . Actinal surface, natural size. 



