126 Dr. J. E. Gray on the Fleshy Alcyonoid Corals. 



Fam. 6. Bellonelladse. 



Coral capitate ; stem thick, with a coriaceous granular 

 outer surface, grooved, showing the tubular form of the bodies 

 of the polypes above ; head hemispherical. Polype-cells cy- 

 lindrical, with a plaited mouth. Polypes retractile. 



Chiefly differs from Xeniadce in the stem being more coria- 

 ceous and the polypes retractile into the tubular projecting 

 cells. 



Bellonella. 



Gray, P. Z. S. 1862, p. 35, figs. 3, 4. 



Coral cylindrical, simple, with a convex head, with sub- 

 cylindrical, truncated, divergent polype-cells on the upper, 

 nearly flat surface, with eight grooves on the edge when the 

 tentacles are enclosed. Tentacles pinnate. 



1. Bellonella granulata, Gray, P. Z. S. 1862, p. 35, fig. 

 Hah. Bellona Eeefs. P.M. 



2. Bellonella'? ca^ntafa. (Lobularia capitata, Duchass. & Mi- 



chel. Corall. Antilles, 21.) 

 Hal). West Indies. 



Fam. 7. Xeniadse. 



Gray, Ann. & Mag. Nat. Hist. 1859, iv. 443. 



Coral soft and fleshy ; stem simple or slightly branched, 

 smooth or minutely granular. Polypes clustered on the 

 rounded ends of the branches, not retractile ; skin of the stem and 

 polypes to the end of the pinnules strengthened with spicules. 



1. Xenia, Savigny = CEEPiTULARiA, Valenc. 

 Coral creeping, fleshy • stem erect. Internal spicules few. 



1. Xenia umhellata, Savigny, Egypte, Polypes, t. 1. f. 3. 

 Hah. Ked Sea (Savigny). B.M. 



2. Xenia fuscescens^ Ehrenb. 

 Hah. Bed Sea. 



3. Xenia cmrulea^ Ehrenb. 

 Hah. Bed Sea. 



4. Xenia samoensis^ Kolliker, I. H. 133, t. 12. f. 1, 2. 

 Hah. Samoa Island. 



2. LORIDELLA. 



Coral erect ; stem thick, with a contracted base ; surface co- 



