4 ZOOPHYTES. 



PLATE 6. 



Fig. 1 a. Euphyllia spheniscus, animal unexpanded, natural 

 size ; 1 b, animal expanded ; 1 c, one of the tentacles ; 1 d, profile 

 section of corallum ; 1 e, a small specimen with side processes. — 

 p. 160. 



Fig. 2. Euphyllia spinulosa, corallum, natural size; 2 a, profile 

 of vertical section of corallum. — p. 162. 



Fig. 3. Euphyllia rugosa, expanded, (some polyps partly so,) 

 natural size ; 3 a, tentacle enlarged ; 3 b, a calicle of the corallum ; 

 3 c, part of a transverse section of a branch ; 3 d, one of the 

 lamella?, as seen in a vertical section ; 3 e, corallum of a young 

 individual, growing on the side of one of the calicles. — p. 166. 



Fig. 4. Euphyllia meandrina, corallum, natural size; 4 a, 

 transverse section. — p. 167. 



Figs. 5, 6. Euphyllia pavonina, corallum of different varieties, 

 natural size. — p. 159. 



PLATE 7. 



Fig. 1. Mussa cactus, zoophyte, natural size; 1 a, tentacle 

 enlarged ; 1 b, vertical section of calicle, showing profile of lamellae ; 

 1 c, part of a transverse section of a branch. — p. 178. 



Fig. 2. Mussa costata, branch, natural size; 2 a, 2 b, sections 

 of cells, showing profile of lamellae, natural size. — p. 179. 



Figs. 3 a, 3 b, 3 c. Mussa cytherea, section of cells, showing 

 profile of lamellae, natural size. — p. 160. 



Fig. 4. Mussa angulosa, section of cell, showing profile of 

 lamellae. — p. 176. 



Figs. 4 a, 4 b. Mussa angulosa, section of cell, showing profile 

 of lamellae, natural size. 



Figs. 5 a, 5 b. Mussa ? from Tahiti, profile of cells, 



showing outline of lamellae, of natural size, perhaps a variety of 

 the M. cactus. 



PLATE 8. 



Figs. 1 a, 1 b, 1 c. Mussa sinuosa, transverse sections of different 

 calicles, showing outline of cells and lamellae, natural size. — p. 179. 



Fig. 2. Mussa multilobata, animal not expanded, the tentacles 

 being concealed ; 2 a, 2 b, profile of cell and lamellae ; natural size, 

 —p. 181. 



Fig. 3. Mussa cerebriformis, transverse section of corallum, 

 showing the cellules within ; 3 a, 3 b, section showing profile view 

 of cell and lamellae ; natural size. — p. 182. 



Fig. 4. Mussa angulosa, section, showing profile of cell and 

 lamellae ; natural size. — p. 176. 



Fig. 5. Mussa regalis, section, showing profile of cell and 

 lamellae; natural size. — p. 182. 



Fig. 6. Mussa crispa, section, showing profile of cell and 

 lamellae; natural size. — p. 183. 



Fig. 7. Mussa fragilis, section, showing profile of cell and 

 lamellae; natural size. — p. 185. 



Fig. 8. Mussa carduus, section, showing profile of cell and 

 lamellae; natural size. — p. 175. 



Fig. 9. Mussa dipsacea, section, showing profile of cell and 

 lamellae; natural size. — p. 184. 



Fig. 10.— Mussa nobilis, worn fragment of corallum; natural 

 size. — p. 187. 



Fig. 11. Mussa recta, worn fragment; 11 a, surface as seen in 

 a vertical section of corallum : natural size. — p. 186. 



PLATE 9. 



Fig. 1. Manicina amarantum, part of a corallum; natural size, 

 —p. 189. 



Fig. 2. Manicina amarantum, var. stricta, section of trench 

 and outline of lamellae. — p. 190. 



Fig. 3: Manicina areolata, section of trench and outline of 

 lamellae and ridges. — p. 191. 



Fig. 4. Caulastr^a furcata, part of zoophyte, natural size; 

 4 a, calicle, natural size ; 4 b, transverse section, natural size ; 4 c, 

 lamellae of calicle, enlarged. — p. 198. 



Fig. 5. Caulastr^a distorta, part of corallum, natural size, 

 —p. 199. 



Fig. 6. Caulastr^a undulata, 6 a, 6 b, transverse section of 

 calicle, in longer and shorter diameter, showing outline of lamellae, 

 natural size. — p. 199. 



Fig. 7. Euphyllia aspera, part of corallum, natural size; 7 a, 

 vertical section of calicle, showing outline of lamellae. — p. 164. 



Fig. 8. Euphyllia cultrifera; 8 a, 8 b, section of calicle or 

 trench; showing outline of lamellae. — p. 169. 



Fig. 9. Euphyllia turgida ; 9 a, 9 b, section of calicle, show- 

 ing outline of lamellae. — p. 166. 



Fig. 10. Tridacophyllia lactuca, part of a crest-form septum 

 of corallum ; 10 a, section of the same, showing outline of lamellae 

 —p. 195. 



Fig. 11. Tridacophyllia p^eonia, zoophyte, natural size; 11 a, 

 section of crests of corallum, showing outline of lamellae.— p. 196. 



PLATE 10. 



Fig. 1 a. Orbicella argus, transverse section of corallum, natural 

 size ; 1 b, vertical section, natural size. — p. 207. 



Fig. 2 a. Orbicella glaucopis, vertical section ; 2 b, transverse 

 section ; natural size. — p. 208. 



Fig. 3. Orbicella curta, calicles of natural size ; 3 a, profile 

 of section of calicle, enlarged ; 3 b, transverse section, enlarged ; 3 c, 

 vertical section, natural size. — p. 209. 



Fig. 4 a. Orbicella cor6*nata, calicles, natural size ; 4 b, calicle, 

 enlarged ; 4 c, profile of vertical section of cell ; 4 d, vertical section 

 of corallum, natural size ; 4 e, transverse section, enlarged ; 4 f, the 

 same, natural size. — p. 211. 



Fig. 5 a. Orbicella pleiades, transverse section of corallum, 

 natural size; 5 b, same, enlarged; 5 c, vertical section, natural 

 size. — p. 213. 



Fig. 6. Orbicella annularis, transverse section of corallum, 

 natural size. — p. 214. 



Fig. 7 a. Orbicella stellulata, transverse section, natural 

 size; 7 b, vertical section, natural size. — p. 215. 



Fig. 9. Orbicella stelligera, surface of corallum, natural 

 size ; 9 a, section of cell, showing outline of opposite lamellae ; 9 b, 

 lamella, enlarged ; 9 c, vertical section, natural size ; 9 d, transverse 

 section, natural size; 9 e, same, enlarged. — p. 216. 



Fig. 10. Orbicella ocellina, calicle, enlarged. — p. 218. 



Fig. 11. Orbicella microphthalma, surface of corallum, natu- 

 ral size; 11a, animal, enlarged; Hi, calicle, enlarged ; 11 c, ver- 

 tical section of corallum, enlarged; 11 c' same, natural size; 11 d, 

 transverse section, natural size; lie, same, enlarged. — p. 217. 



Fig. 12. Siderina galaxea, surface of corallum, natural size; 

 12 a, same, another variety; 12 b, transverse section of the va- 

 riety fig. 12, natural size; 12 c, same, enlarged; 12 d, transverse 

 section of the variety 12 a. — p. 218. 



Fig. 13. AsTRiEA pallida, natural size, with part of the polvps 

 expanded ; 13 a, tentacles of the two series enlarged ; 13 b, calicles, 

 natural size ; 13 c, profile of vertical section of calicle, showing out- 



