206 THE GORGOXACEA COLLECTED BY DR WILLEY. 



EXPLANATION OF PLATES XXII. AND XXIII. 



Plate XXII. 



(Most of the drawings for this plate were made by the author.) 



Fig. 1. Acamptogorgia tuberculata, n. sp. Colony, x 2. 



Fig. 2. Spicules of same. 



Fig. 3. Acanthogorgia spinosa, n. sp. Polyp-head. 



Fig. 4. Spicules of same ; (a) of the operculum, (4) of the polyp, (c) of the coenenchyma. 



Fig. 5. Acanthogorgia spinosa. End of branch of a decalcified portion of colony, x 3. 



Fig. 6. Polyp of same showing spicular tracts. 



Fig. 7. Villogorgia compressa, n. sp. Spicules (a) of the operculum, (6) of the coenen- 

 chyma, (c) of the polyp. 



Fig. 8. Chrysogorgia constricta, n. sp. A branch, x 2. 



Fig. 9. Same. Two terminal polyps, x 12. 



At the base is a young polyp not yet fully developed. 



Fig. 10. Same. Spicules. 



Fig. 11. Primnoisis ambigua. Spicules. 



Fig. 12. Keroeides gracilis. Portion of branch showing arrangement of spicules. 



Fig. 13. Same. Spicules of the coenenchyma. 



Fig. 14. Same. Part of the sclerogorgic axis. 



Fig. 15. Keroeides pallida, n. sp. The end of a branch showing arrangement of spicules. 



Fig. 16. Same. Spicules (a) of the coenenchyma, (b) of the polyp. 



Plate XXIII. 

 Fig. 1. Yerrucella gtiadalupensis. Part of the Colony, x 2J. 



Fig. 2. Verrucella guadalupensis. A branch, x 4, showing the manner in which the 

 branches give support to the anemones, Peronanthus verrucellae, n. gen. et sp. 



