X 
LIST OF Pl.ATES. 
X. — 1. Lophohelia prolifera. 2. Peacliia triphylla. 3. Sphenotro- 
chua Wrightii. 4. S. Macandrewanus. 5. Zoanthus 
Couchii. 6. Paracyathua Taxilianus. 7. P. pteropus. 
8. P. Thulensia. 9. Hoplangia Durotrix. 10,11. Bala- 
nophyllia regia. 12, 13. Caryophyllia Smithii. To /ace p. 308 
XI. — Anatomical details. 1. Ideal demi-section of a Sagartia. 
a. septum ; b. septal foramen ; c. stomacli ; d. liver ; 
e. ovarian mesentery ; /. ovary ; ff. craspedal mesentery ; 
A. craspedum ; i. acontia. 2. Fragment of craspedum 
{S. bellis) with its mesentery {magnified). 3. The same 
craspedum under pressure {more highly magnified). 
4. Fragment of acontium {S. bellis). 5. Portion of 
column containing cinclides {A. dianthus). k. fully open ; 
1. slightly open ; m. closed. 6. Chambered cnida {Ca- 
ryophyllia) before discharge. 7. Chambered cnida {Tealia) 
discharged, n. ecthoreeum ; o. strebla ; p. pterygia. 
8. Chambered cnida discharging, showing the ecthorseum 
in process of evolving. (N.B. — The strebla and pterygia 
are here omitted, for the sake of greater clearness.) 
9. Tangled cnida {Corynactis). 10. Spiral cnida {Tealia) 
discharging. 11, 12. Globate cnidse {S. parasitica). 
q. peribola 348 
XII. — Magnified Figures. 1. Phellia picta. 2. Zoanthus sulcatus. 
3. Edwardsia camea. 4. Caryophyllia (tentacle). 5. Zo- 
anthus Alderi. 6. Halcampa microps. 7. Gregoria 
fenestrata. 8. Phellia murocincta 358 
