348 



CEYLON PKAIU, OYSTER 



PORT. 



Fig. 38. One side of branchial sac. x 300. 



30. Ascidiozooid and advanced bud. x 300. 



.. 40. Small colony, mounted whole, x 40. 



., 41. Echinated Leptoclinum sp. (?). Nat. size. 



Fig. 4'J. Three spiny papillae from the surface, in 

 profile, enlarged. 

 ,, 43. Amaroucium sp. (?). Nat. size 

 ,, 44. Diplosoma sp. (?), two colonies. Nat. size. 



PLATE IX. 



(All the figures on this plate are reproduced from photographs.) 



Fig. I. Leptoclinum ceylonicum, n. sp., Palk Bay. 

 ,, 2. Another colony from oft' Chilaw. 

 3. Leptoclinum ramosum, n. sp. 



4. Leptoclinum ceylonicum, var. planum, below, 

 with Gymmdrocarpa imthumi, n. sp., 

 above. 

 5. Hypurgon skeati, Solt.as. 



Fig. (j. Diplosoma viride, n. sp. 



,, 7. Leptoclinum margaritiferai, n. sp. 



,, 8. Psammaplidium awrantiacum, n. sp. 



9. Psammaplidium ceylonicum, n. sp. 



10. Psammaplidium sp. A. 



,, 11. Psammaplidium sp. B. 



