120 Dr. J. E. Gray on the Fhsli^j Ahyonoid Corals. 



2. EUNOELLA. 



Coral crust-llkc, tliin. Polypes large, convex when con- 

 tracted. 



Eunoella gorgonoides. [Alcijonium gorgonoides^ Ellis & Soland. 

 Zooph. 101, t. 9. f. 12. Sgiiqyodium gorgonoides^ M.-Edw. 

 Sertularia gorge nia^ Pallas.) 

 Hnh. West Indies. 



3. Sympodium, 



Ehrenb. Corall. 61; M.-Edw. & Haime, Corall. i. 110 ; 

 Kolliker, Ic. Hist. 141, t. 19. f. 7-9. 



Coral expanded, fleshy, skin-like. Polype-cells small, pa- 

 pillose, not spined ; polype and tentacles retractile, leaving a 

 small superiieial wart. Spicules fusiform or short, subcylin- 

 drical, tubercular or spinous. 



1. Symj)odiuni fuJiginosum^ Ehrenb., Savigny, Polyp, t. 1. f. 6. 

 liah. lied Sea. 



2. Sgmjjodiinn coiruleum^ Ehrenb. 

 Hah. Red Sea. 



3. Sgmjwduim 2wr(fennn, Yerrill, Proc. Boston S. N. II. 1866. 

 liab. Panama. 



4. EllYTHEOrODIUM. 



Kolliker, Icon. Hist. 141 (1866), 1. 12. f. 10, 11, t. 9. f. 6. 



Coral incrusting, membranaceous ; flesh of the coral studded 

 with dark-red, large, subcruciate or subc}dindrical tubercular 

 spicules. Polype completely retractile into the cell, leaving 

 only a slight convex edge. Tentacles nearly cylindrical, 

 pectinate. 



Ergthrojjodhan caribba^arum, Kolliker. [Xenia caribbwariimj 

 Duchass. & Michel. Corall. Antilles, t. 1. f. 8-10.) 

 Hah. West Indies. 



5. Ojeda. 



Duchass. & Michel. Corall. Antilles, 14, Supp. 104. 



Coral like Sympodium. " Spicules, which resemble small 

 nummulites, are so minute as to be only seen by the aid of the 

 microscope ; the edges are dee})ly cut out ; resembling a small 

 many-rayed star, nummulitiform." 



Oj'eda lufeola, Duchass. & Michel. Corall. Antilles, 14. 

 Jlab. West Indies. 



