550 THE GREAT BARRIER REEF. 



CHROMO PLATE VII. 

 GREAT BARRIER REEF CORALS. 



Fig. I. — Scriatopora liysfrix, pp. 17 and 171. Corallum with associated polyps, natural size; ia, 



terminal branchlet of corallum with expanded polyps, slightly enlarged ; ib and ic, horizontal 



and lateral views of an isolated polyp, further enlarged. 

 Fig. 2 — Stylopora pabnata, pp. 22 and 172. Corallum with associated polyps, natural size; 2a, b, 



and c, horizontal and lateral views of expanded polyps, considerably enlarged. 

 Fig. 3. — Pocilloponi damicoriiis, p. 172. Branchlet of corallum, natural size; 3A, b, c, d, horizontal 



and lateral views of expanded polyps of diverse colours, considerably enlarged. 

 Fig. 4. — Octilina fasciculata, n.sp., p. 170. Branchlet of corallum with expanded polyps, natural 



size, with a second branchlet to the rear denuded of polyps ; 4A, horizontal view of isolated 



polyp, slightly enlarged. 

 Fig. 5. — Echmopora horrida, p. 170. Extremity of branchlet with the polyps contracted natural 



size ; 5A, horizontal view of isolated polyp with expanded tentacles. 

 Fig. 6. — Ecliinopora rosularia, p. 1 70. Portion of corallum with expanded polyps, natural size; 



6a, expanded polyp enlarged. 

 Fig. 7. — Hydnophora rigida, p. 169. Branchlet with associated polyps partly expanded, natural 



size ; 7A, small area of the same branchlet, slightly enlarged. 

 Fig. 8. — Hydnophora sp. p. 168. Lateral view of fully expanded polyps; 8a, young polyp 



possessing only six clavate tentacles. 

 Fig. 9. — Mendina ampliata, p. 168. Fragment of corallum with associated polyps ; natural size. 

 Fig. 10. — Merulina ampliata, p. 168. Cream-coloured variety, small area showing oral centres 



and sparsely scattered tentacles, slightly enlarged. 

 Fig. II. — Lophoscris cristafa, pp. 20 and 176. Fragment of corallum with expanded polyps, 



natural size ; iia and b, expanded polyps, slightly enlarged. 

 Fig. 12. — Hydnophora microcona, p. 169. Portion of corallum with associated polyps, natural 



size. 

 Fig. 13. — Hydnophora Demidoffi, p. 169. Pinnacle of corallum with fully expanded polyps, natural 



size; 13A, isolated polyp with green, retracted, tentacles, enlarged. 



