PLATE XIX. 



Fig. 1. Maclrepora prolifera Lamarck, branch attached to a dead coral. 



Fig. 2. Madrepora prolifera Lamarck, branchlets seen from above to show terminal calicles, natural size. 



Figs. 3, 4. Madrepora prolifera Lamarck, end of branchlet magnified in profile and from above. 



Fig. 5. Madrepora prolifera Lamarck, terminal calicle seen from above, magnified. 



Fig. 6. Madrepora prolifera Lamarck, section through branch, magnified. 



Fig. 7. Madrepora prolifera Lamarck, end of branch with polyps expanded. 



Fig. 8. Madrepora prolifera Lamarck, lateral polyps, magnified. 



Fig. 9. Madrepora prolifera Lamarck, young colony forming from an e.\.panded base. 



