MEDITEEEAIirEA.ir AND IfEW-ZEALAlSTD EETEPOE^. 271 



EXPLANATION OP THE PLATES. 



Plate VI. 



Fig. 1. Retepora Solaoidcria, Eisso. X 25. 



2. Do. ; dorsal surface. X 25. 



3, 4. Do. Natural size. 



5. Betepora Impcrati, Busk ; ovicell. Porto Praya. X 25. 



6. Retepora tessellata, Hincks ; ovicell. X 25. 



7. Retepora tessellata, var. ccsspitosa, B. ; young ovicell. X 25. 



8. Do., do. ; older ovicell from the same colony. X 25. 



9. Retepora elongata, Smitt ; ovicell. X 25. 



10. Do. ; younger ovicell from the same colony. X 25. 



11. P almicellar ia 2Mrallelata, ST^. n. ; dorsal surface. X 12. 



12. Do. ; anterior surface. X 12. (a) mandible. 



13. Do. ; turned somewhat sidevrays to shovr the suboral rostrum. 



14. Retepora meditcrranea, Sm. ; operculum. X 85. 



15. Do. ; dorsal surface. X 3. 



16. Do. ; oral aperture, showing small avicularium. X 85. 



17. Retepora cellulosa, L. North Cape, X 25. {a) avicularium. 



18. Retepora Couchii, var. biaviculata, var. nov. Eapallo. X 25. 



19. Palmicellaria parallclata, sp. nov. X 2^. 



20. Retepora celhdosa, L. ; North Cape ; mandible. X 85. 



21. Retepora complanata, sp. nov. ; dorsal surface. X 5. 



22. Retepora Couchii, var. aporosa, var. nov. X 25. 



Plate VII. 



Pig. 1. Retepora novce zelandicB, sp. nov. ; without ovicells. X 85. 



2. Do. ; aperture after the operculum has been removed. 



3. Do. ; with ovicells. X 85. 



4. Do.; operculum. X 250. 



5. Do. ; mandible. X 250. 



6. Do. ; young zooecium. X 85. 



7. Retepora monilifera, var. munita, MacQ. X 2. 



8. Do., do. X 85. 



9. Do., do. ; operculum. X 85. 



10, 11. Do.,do. ; mandibles. X 250. 



12. Retepora celhdosa, L. ; avicularium. 



13. Retepora Beaniana, King ; avicularium. 



14. Retepora complanata, sp. nov. ; with ovicells. X 25. 



15. Do. ; operculum. X 85. 



16. Do. ; ovicell. X 85. 



17. Do. ; mandible. X 250. 



18. Do. ; without ovicells. X 25. 



19. Retepora novcs selandics, sp. nov. ; dorsal surface. X 5. 



20. Retepora munilifera, var. munita, MacG. ; Victoria ; ovicell. X 85. 



21 . Retepora fissa, MacG. ; Tasmania. X 25. 



22. Do. ; ovicell. x 85. 



LINN. JOUEN. — ZOOLOGY, VOL. XXV. 21 



