186 CEYLON PEARL OYSTER REPORT. 



EXPLANATION OF PLATE. 



Fig. 1. Chironephthya indica, n. sp. ; two groups of anthocodial "point" spicules. 

 ,, 2. Mur'n-i I la r ultra, n. sp. ; showing texture of the surface, x 2. 

 ,, 3. Bebryce indica, n. sp. ; spicules. 



4. Suberogorgia rubra, n. sp. ; showing texture and verrucas, x 10. 

 ,, 5. Acamptogorgia rubra, n. sp. ; showing branching and the alternate verrucas, x 2. 

 G. Caligorgia versluysi, n. sp. 

 7. Muricclla rubra, n. sp. ; spicule. 

 ,, 8. Virgularia cahjcina, n. sp. ; the entire specimen. 

 ,, 9, 10, 11. Virgularia cahjcina, n. sp. ; pinnules at various levels. 

 ] 2. Acamptogorgia gracilis, n. sp. ; showing spinose texture of the ccenenehyma, and the eight 



triangles of anthocodial spicules, x 10. 

 ,, 13. types of spicules. 



14. Chironephthya indica, n. sp. ; a large curved spindle with tubercles. 

 15. Caligorgia versluyi, n. sp. Drawn by Dr. Versluys. op., operculum; o., abaxial row; l. } outer 



lateral row; i., inner lateral row; sc, basal scale of abaxial row, or belonging to general 



ccenenehyma. 

 ,, 16. Acamptogorgia rubra, n sp. ; types of spicules. 

 ,, 17. Ftisticularia herdmani ; spicules of the body parenchyma. 



18. transverse section of the stock, showing three central canals. 



,, 19. ,, portion of the surface enlarged, showing different stages of retraction of 



autozooids. 

 ,, 20. ,, entire colony. Natural size. 



,,21. ,, spicules of the cortical layer. 



,, 22. ,, spicules of the trunk. 



