PLATE XIX. 
Fig. 1. Madrepora pi'olifera Lamarck, branch attached to a dead coral. 
Fig. 2. Madrepora prolil'era Laiuarck, branclilets seen from above to show terminal calicles, natural size. 
Figs. 3, 4. Madrepora prolifera Lamarck, end of branchlet magnitied 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, m.ignified. 
Fig. 9. Madrepora prolifera Lamarck, young colony forming from an expanded base. 
