PLATE X. 
Fi". 1. Dichocoenia porcata Milne-Eclw. and Haime, variety from Nassau, Bahamas, reduced four fifths. 
Fi<T. 2. Dichoooenia porcata Milne-Edw. and Haime, portion magnified. 
Fig. 3. Dichocoenia porcata Milne-Edw. and Haime, profile view of a septum of same specimen, with 
palifoi-m lobe, magnified. 
Figs. 4, 5. Dichocoenia porcata Milne-Edw. and Haime, parts of another specimen, magnified. 
Fi>T. 6. Dichocoenia porcata Milne-Edw. and Haime, profile view of septum of preceding specimen, mag- 
nified. 
T\a. 7. Dichocoenia porcata Milne-Edw. and Haime, two primary septa and intermediate secondary seen 
from above, magnified. 
Fig. 8. Dichoccenia porcata Milne-Edw. and Haime, horizontal section through two calicles, showing solid 
filling up of outer part of chambers. 
Fig. 9. Dichocoenia porcata Milne-Edw. and Haime, vertical section through a calicle showing dissepi- 
ments. 
Fig. 10. Dichocoenia porcata Milne-Edw. and Haime, part of another specimen with more pointed septa, 
magnified. 
Fig. 11. Dichoccenia porcata Milne-Edw. and Haime, septum of preceding specimen in profile, magni- 
fied. 
Fig. 12. Dichocoenia porcata Milne-Edw. and Haime, part of specimen from Cumana with crowded 
and prominent calicles, magnified. 
Fig. 13. Dichocoenia porcata Milne-Edw. and Haime, septum of preceding specimen in profile, magnified. 
Fig. 14. Dichocoenia porcata Milne-Edw. and Haime, part of a specimen from Nassau, with coarsely 
granulated coenenchyma, magnified. 
Fig. 15. Dichoccenia porcata Milne-Edw. and Haime, septum of preceding specimen in profile, magnified. 
