PLATE XXXV. 



Page. 



Fig. 1, la. Muricea acropora V. Characteristic spicules; a to e, warted spindles from the 



interior; spindles with sharp spinules on one side, from the outer layers; k f I, the same 

 but with spinules mostly near the end, approximating to clubs; n, o, spinose clubs- 

 m, a large spindle with branched spinose outgrowths on one side. Type, X 120 379 



2. Muricea humilis (Edw.) V. End of a branch of var. humilis, X 7 377 



3, 3a. Plexaurella grandiflora V. Spindle-shaped bodies from the young axis, near tips, 



X 120 388 



4. Plexaurella cylindrica V. Characteristic spicules; a toe, regular and subregular crosses; 



d to 1, irregular or unequal rayed crosses or twinned forms; h, h', triquetral forms; 

 k } I, spindles; n, n', small double-heads from the external layer. Type 384 



5, 5a. Gorgonia gracilis V. (5a purple; 56, yellow var.). Type, X 7 393 



6* Gorgonia hartti V. One of the meshes to show calicles. Type, X 14 391 



7, 7a. Gorgonia br aziliensis } V. Side and profile views of a branch of the type, X 14 — 392 



8, Phyllogorgia frondosa V. Portion of frond to show calicles of type, X 7 395 



9, 9a. Leptogorgia rathbuni V. Portions of two branchlets of type, X 14 397 



10, 10a. L. rubropurpurea V. Tip and middle of a branchlet of the type, X 14 398 



399 



385 



11. L. pumicea (VaL). Portion of a branchlet of No. 892, X 14 



12. 12a. Plexaurella braziliana V. Tangential section and portion of the exterior of the 



type, X 3.7 



13. 13a. Plexaurella verrucosa V. Transverse and tangential sections of the type, X 3.7 — 387 



14. P. cylindrica V. Tangential section of the type, X 3.7 



15. P. braziliana V. Tangential section seen by transmitted light; p, p\ polyp-cavities; 



the small white spots are open ends of tubules, X 24 



