406 Dr. J. E. Gray on new Genera and Species of 



Muritella fucosa = Qorgonia palnia^\iix. aZirt,Esper,t. 11. B.M. 



G. albicans, Kolliker. 



G. fucosa, Valen. Voy. Vdnus, t. 13. 



Hah. California. A very variable species. 



BOARELLA. 



Coral branched in a plane, fan-shaped, forming an oblong- 

 frond with a single stem ; branches and branchlcts slender, 

 nearly of the same diameter, netted ; branches diverging and 

 often inosculating, some of the marginal branchlets free. 

 Bark thin, formed of thin scales or spicules. Polype-cells 

 subcylindrical, elongate, truncate, membranaceous, translucent, 

 with a circular mouth with ten marginal folds and ten short 

 valves in an irregular series on each side of the branches, 

 diverging in different directions, one, sometimes two or three, 

 together. Axis continuous, horny. 



Boarella Jlahellata. B . ^I . 



Menacella. 



Coral very much branched, fan-shaped, irregularly reticu- 

 lated ; stem simple. Bark very thin, formed of numerous 

 very slender fusiform spicules in bundles, placed in different 

 directions. Polype-cells short, cylindrical, covered with spi- 

 cules like the bark, with a smooth, convex, eight-rayed lid, 

 placed close together on the sides of the branchlets, and more 

 scattered and further apart on the sides of the branches. 

 (Muriceada3.) 



Menacella reticularis =G org onia reticularis^ Pallas. B.M. 



PHyEOCELLA. 



Coral branched, fan-like ; stem rather compressed ; branches 

 irregularly furcate, all in one plane, cylindrical, rarely 

 tapering at the end ; branchlets, some subpinnate, others sub- 

 secund on the upperside of the branches. Bark thin, formed 

 of abundance of small fusiform opaque spicules placed in 

 groups in different directions. Polype-cells small, on all sides 

 of the stem and branches, ascending, with a rather hood-like 

 outer surface, forming a short cylindrical tubercle, formed of 

 spicules like those of the bark. Axis continuous, horny, black ; 

 branches and branchlets tapering. (Muriceadte.) 



PJneocella fnherculata = Gorgonia tuberculata^ Esper, i. t. 37. 

 Mediterranean. 



