OF THE MEKGUI ARCHIPELAGO. 



247 



Fig. 17. Spoil ffodcs boletiformis, n. sp. Portion of head (spirit). Nat. size. 



18. The same. Lobule. xGdiam. 



19. The same. Projecting spicule. X 55 diam. 



20. Spongodes aurora, n. sp. Portion of head (spirit). Nat. size. 



21. The same. Small portion of head. x6 diam. 



22. The same. Large spicule of cortex of head. x85 diam. 



23. The same. Projecting spicule. X 85 diam. 



24. The same. Spicules of stem. X 250 diam. 



Plate XVIII. 



Fig. 1. PIcxaura indica, n. sp. Small specimen in spirit. Nat. size. 



2. The same. Portion of larger (dry) specimen. X 2 diam. 



3. The same. Foliate spicules of cortex. X 250 diam. 



4. The same. Badiate spicule of verrucas. X 250 diam. 



5. The same. Fusiform cortical spicule (No. 2 of description). X 250 diam. 



6. Mopsella planiloca, n. sp. Foliate spicule. X 300 diam. 



7. Gorgonia oppositipinna, n. sp. Portion of type specimen (spirit). Nat. 



size. 



8. The same. Portion of branch . X 4 diam. 



9 & 10. The same. Larger scaphoid spicule. X 250 diam. 

 11. The same. Smaller scaphoid spicule. X 250 diam. 



On two Species of Actiniae from the Mergui Archipelago, collected 

 for the Trustees of the Indian Museum, Calcutta, by Dr. 

 John Anderson, IT .U.S., Superintendent of the Museum. 

 By Professor Alfred C. Haddon, M.A., M.E.I.A. (Com- 

 municated by Dr. John Anderson, F.R.S., T\L.S.) 



[Eead 16th June, 1887.] 



(Plates XIX. & XX.) 



Two species of Actiniae from the Mergui Archipelago were sub- 

 mitted to me by Dr. John Anderson, both of which have proved 

 to be undescribed. 



The more interesting form, which is the type of a new genus, 

 was unfortunately in such a bad state of preservation that most 

 of the epithelial tissues had entirely disappeared. Although this 

 specimen was partially dissected and a portion removed for 

 microscopic examination, care was taken not to destroy its value 

 as a Museum specimen. 



The other species was represented by three specimens, one 



LI XX. JOURN. — ZOOLOGY, YOL. XXI. 2i 



