130 



Fig. 4. Thoiiarella vtosdei/i, vav. apirata, n. Portion enlarged (x 20). Note the spines on the pre- 



opercnlar scales. 

 „ 0. Lepidogorgia verrilli, Wright and Studer. {a) Small portion of colony nat. size ; (/<) part 



enlarged ( x 1.3) showing the dense armature and a partially retracted polyp. 

 „ G. Chrijsogorijia iiii/ica, n. sp. {x 1^). To show mode of branching and arrangement of polyps. 

 ,, 7. Acamptogorgia hehri/coides, var. rohiista, n. Fragment nat. size. 

 ,, 8. Acamptogorgia behnjcoklfs, var. rohusfa, n. Twig enlarged ( x 10). Note the short and 



cylindrieal polyjjs and the almost horizontal operculnm. 



Plate IV. 

 Fii:. 1. Kernndfs gracilis, \Y\\iie\e^gG. Portion of colony nat. size. 

 ,, 2. Keroeides gracilis, Whitelegge. Part of twig enlarged ( x 10). Note the large and regnlarly 



arranged spicules. 

 ,, 3. Keroeides gracilis, AVhitelegge. Portion of main stem enlarged (x 10) showing the smaller 



and more indefinitely arranged spicules. 

 ,, 4. Parisis indica, n. sp. Branch nat. size. 



,, o. Parisis indica, n. sp. Part of axis enlarged showing the clusters of epizoic Pahjthoa. 

 ,, 6. Sijmpndium tenue, u. sp. Colony (x IJ) showing the support of siliceous sponge spicules. 

 „ 7. Disfichopfilum gracile, Verrill. Part enlarged (x 10). Note the small scarcely projecting 



polyps. 

 „ 8. Parisis indica, n. a-p. IJasal portion ( x li) showing the disc of attachment. 

 „ 9. Parisis indica, n. sp. Part of a branch enlarged (x 11). Contrast the proportions of node 



and internode with those in fig. S. 

 ,, 10. C!iironi>phthija rnacrospiculata, n. sp. Terminal portion enlarged (x 12). Note the enormous 



spindles of the ccenenchyma. 

 ,,11. Suherogorgia livllilieri, var. ceylunensis, Thomson. Branch nat. size. 

 ,, 12. Stiberogo7-gia Iivllikeri, var. ceijlonensis, Thomson. Portion enlarged (x 10). 



Plate Y. 



Fig. 1. Accodhoinuricea raniosa, n. g. et sp. Terminal twig enlarged ( x 10). Side to wliich the polyps 



are directed. 

 ,, 2. Sifreacaidhia indica, n. g. et sp. Part enlarged ( x 10). 

 ,, 3. Acamptogorgia circium, n. sp. Twig ( x 2). Note the spinose appearance. 

 ,, 4. Acantliomuricea ramosa, n. g. et sp. Eever.se side of fig. 1. 

 ,, 5. Umhollula rosea, n. sp. Eachis nat. size. 

 ,, 6. Pleurncorcdlium variahile, n. sp. Portion enlarged ( x 12). Note the arenaceous appearance 



of the ccenenchyma and the stellate form of the polyps. 

 ,, 7. Jancella miniacea, n. sp. Colony nat. size. Note gall. 

 ,, 8. AcantJiomuricca raiHOsa, n. g. et sp. Branch ( x li). 

 „ 9. Paragorgia. splendens, n. sp. Branch nat. size. 

 ,, 10. Astrogorgia ruhra, ii. sp. Terminal jiortion of twig ( x 10). 

 ,, 11. Acis spinosa, n. sp. Part of twig enlarged ( x 14). Note the difference in the spiculation of 



contiguous portions ; also the enormous plate-like spicules. 

 „ 12. Juncella miniacea, n. sp. Part enlarged (x 12) showing the characteristic polyps. 

 „ 13. Stenella horrida, n. sp. Terminal twig enlarged ( x 12). Note the rugose appearance. 

 ,, 14. Paragorgia splendens, n. sp. Cluster of autozooids enlarged ; also showing the arrangement of 



the siphonozooids. 

 ,, 1-5. Acanihogorgia aspera, Pourtales. Side and end view of polyps ( x 10). 



