ZOOPHYTES. 



7 



Fig. 12. Fungia gigantea, sectional view, ib., natural size. — 

 p. 303. 



Fig. 13. Fungia crassa, sectional view, ib., natural size. — p. 

 304. 



Fig. 14. Fungia asperata, view of margin of part of a lamella, 

 showing the character of the dentation. — p. 303. 



PLATE 20. 



Fig. 1. Fungia dentata, var., profile of vertical section, natural 

 size.— p. 293. 



Fig. 2. Herpetolithus limacinus, profile of vertical section, 

 from the middle or oririrne to one side, natural size ; 2 a, shape of 

 zoophyte; 2 b, 2 c, 2d, lamella. — p. 307. 



Fig. 3. Herpetolithus foliosus, profile of vertical section, 

 natural size ; 3 a, form of outline of zoophyte, as seen from above, 

 —p. 30S. 



Fig. 5. Herpetolithus crassus, zoophyte expanded, natural 

 size ; 5 a, profile of vertical section of corallum, natural size ; 5 b, 

 profile of a marginal lamella; 5 c, outline of a lamella, and of 

 another smaller (one of the intermediate). — p. 310. 



Fig. 6. Polyphyllia leptophylla, 6 a, form of corallum; 6 b, 

 6 c, outline of lamellae. — p. 314. 



PLATE 21. 



Fig. 1. Herpetolithus strictus, profile of transverse section 

 of corallum, natural size. — p. 309. 



Fig. 2. Halomitra pileus, profile of transverse section of 

 corallum, natural size; 2 a, outline of lamella, natural size; 2 b, 

 same, of another variety. — p. 311. 



Fig. 3. Polyphyllia galeriformis, zoophyte expanded, natural 

 size ; 3 a, lamellae of corallum, natural size ; 3 b, same, enlarged, 

 —p. 317. 



Fig. 4. Polyphyllia pileiformis, lamellae of corallum, natural 

 size. — p. 317. 



Fig. 5 a. Polyphyllia talpa, lamellae, as they radiate from one 

 side of an oririme, natural size ; 5 b, 5 c, outline of lamella? ; 5 d, 

 outline of one of the lamellae forming the margin of the corallum, 

 natural size. — p. 313. 



Fig. 6. Zoopilus echinatus, corallum, natural size; 6 a, out- 

 line of part of a section. — p. 319. 



Fig. 7. Agaricia speciosa, corallum, natural size. — p. 337. 



Fig. 8. Agaricia undata, part of corallum, natural size. — p. 

 336. 



PLATE 22. 



Fig. 1. Agaricia rugosa, part of corallum, natural size; 1 a, 

 living surface of zoophyte, showing polyps enlarged ; 1 b, longitu- 

 dinal, cross-section, enlarged ; 1 c, transverse, ditto. — p. 336. 



Fig. 2. Agaricia levicollis, part of corallum, natural size. — 

 p. 338. 



Fig. 3. Pavonia papyracea, corallum, natural size.— p. 323. 



Fig. 4. Pavonia decussata, corallum, natural size ; 4 a, polyps 

 or part of living zoophyte, enlarged ; 4 b, section of cell, and 

 corallum, enlarged. — p. 329. 



Fig. 5. Pavonia pr^etorta, part of corallum, natural size ; 5 a, 

 a single plate. — p. 325. 



Fig. 6. Pavonia divaricata, part of corallum, natural size. — p. 

 327. 



Fig. 7. Pavonia boletiformis, part of a leaf of corallum, 

 natural size. — p. 327. 



Fig. 8. Young of Tridacophyllia ? — p. 350. 



PLATE 23. 



Fig. 1. Pavonia lata, natural size, in outline, excepting a 

 small part, (1 a.) — p. 330. 



Fig. 2. Pavonia crassa, natural size, in outline; 2 a, surface, 

 natural size. — p. 331. 



PLATE 24. 



Fig. 1. Pavonia crassa, var. obtusa, corallum, natural size, in 

 outline ; 1 a, a portion, showing the surface. — p. 331. 



Fig. 2. Pavonia Formosa, part of corallum, natural size. — p. 

 325. 



Fig. 3. Pavonia frondifera, var. brevicristata, corallum, 

 natural size ; 3 a, portion of same. — p. 329. 



Fig. 4. Pavonia clavus, corallum, natural size ; 4 a, surface of 

 part of zoophyte, enlarged, showing animals; 4 b, surface of coral- 

 lum, enlarged, showing stars ; 4 c, part of a transverse section, en- 

 larged ; 4 d, part of a vertical section, enlarged. — p. 332. 



PLATE 25. 



Fig. 1. Psammocora columna, corallum, natural size; 1 a, cell; 

 1 b, sectional view. — p. 347. 



Fig. 2. Psammocora plicata, corallum, natural size ; 2 a, 

 animals, enlarged; 2 b, view of surface, enlarged. — p. 346. 



PLATE 26. 



Fig. 1. Psammocora exesa, corallum, natural size ; 1 a, part of 

 surface of expanded zoophyte (2 polyps, and a portion of another), 

 enlarged ; 1 b, cell of corallum, enlarged ; 1 c, vertical section of 

 corallum, enlarged. — p. 348. 



Fig. 2. Psammocora fossata, outline view of corallum, showing 

 form of specimen ; 2 a, surface of the same, natural size. — p. 347. 



Fig. 3. Heliophyllum, vertical section through middle of 

 corallum. — p. 356. 



Figs. 4, 4 a. Cyathopiiyllum, subgenus Heliophyllum. — p. 356. 



Fig. 5. Arachnophyllum, view of cell, natural size; 5 a, part 

 of same, enlarged. — p. 360. 



Fig. 6. Clisiophyllum, vertical section through middle of a 

 turbinate species, natural size ; fig. 7, from a massive species, na- 

 tural size ; 7 a, central part of fig. 7, enlarged. — p. 361. 



Fig. 8. Cyathophyllum dianthus, section through middle. — 

 p. 355. 



Fig. 9. Columnaria, part of transverse section, natural size ; 

 9 a, exterior vertical surface, natural size; 9 b, vertical section 

 through middle. — p. 362. 



Fig. 10. Another species of Columnaria. — p. 362. 



Fig. 11. Sarcinula, vertical section through middle. — p. 363. 



PLATE 27. 



Fig. 1. Dendropiiyllia nksrescens, branch of zoophyte, natu- 

 ral size; 1 a, animal, enlarged ; 1 b, tentacle ; 1 c, part of branch near 

 extremity, showing the surface and a calicle, natural size ; 1 d, ver- 



