DESCRIPTION OF PLATE VI. 



Living Zoophytes ; Lecture VI. 



Fig. 1. Pavonia lactuca ; a group of four cells, each cell containing a beautiful 

 green polype ; from the shores of the South Sea Islands ; p. 624. 



2. Branch of Goryonia, from the West Indies; p. 617. 



3. Branch of a Gorgonia, from the Mediterranean ; p. 617. 



4. A polype of Tubipora rubeola, protruded from its tube; p. 620. 



5. Madrepora plantaginea, with the polypes expanded; p. 621. 



6. The disk of the polype represented in fig. 4, when fully expanded. 



7. Three connected tubes of Sarcinula musicalis, magnified, to show the 



internal structure ; p. 619. 



8. Turbinolia rubra, with the body of the zoophyte, as seen alive ; p. 622. 



9. Sarcinula musicalis, or organ-pipe coral ; from the shores of New South 



Wales, as it appears in the w r ater, with its beautiful green polypes pro- 

 truded; p. 619. 



10. A single detached polype of Astrcea viridis, highly magnified; p. 624. 



11. A group of living Actinia, or Sea animal-flowers; p. 621. 



12. A polype of a Tubipore expanded; highly magnified; p. 620. 



13. Astrcea viridis, represented as alive in the sea; some of the polypes are 



expanded, and others contracted ; p. 623. 



14. Turbinolia rubra, with the tentacula of the zoophyte expanded; p. 622. 



15. Fungia actinifonnis, from the South Pacific Ocean, as seen alive, and the 



polypes in activity; one-tenth the natural size ; p. 623. 



Vv 



