SUBORDER ALCYONARIA. 641 



2. CORA.LLIUM SECUNDUM. (Dana.) 



C. ramulosum, in piano expansum, polypis secundum, ad apice ramicu- 

 lorum dispositis et scepe binis ; axe cakareo, kvi, pallide carneo aut 

 albo, crustaque coccinea. 



Ramulose, branching in a plane; polyps confined to one surface, 

 mostly placed at the apex of very small branchlets and often in 

 twos : axis calcareous, smooth, pale flesh-red or white, crust scarlet. 



Plate 60, fig. 1, zoophyte, natural size. 



This species is peculiar in having the branches arranged in a single 

 plane, and the polyps confined to one surface. They open mostly at 

 the extremities of slender calcareous processes. The only specimen 

 seen by the author, was procured at the Sandwich Islands; but it 

 may have been brought by shipping from some other locality. It is 

 five inches high and eight broad, with the stem at base half an inch 

 thick. The crust still remains dried on the axis, and the eight rays 

 of the closed polyps may be easily distinguished. 



SOBFAMILY II. GORGONIN.E. 



Gorgonidce axem inarticulatum corneum sublapideumve, corticemque 

 semi-cakaream, elaborantes. 



Gorgonidse secreting an inarticulate corneous or sublapideous axis, 

 and a semi-calcareous cortex. 



GENUS II. HYALONEMA. GRAY. 

 Gorgonidce, axejilicoso, subsiKceo, inarticulate. 



Gorgoriidse secreting an inarticulate axis made up mostly of siliceous 

 threads or spicula. 



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