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SUBORDER II.— ALCYONARIA. 
2. CoRALLTUM SECUNDUM {Dana). — -Ramulose, branching in a plane ; 
polyps confined to one surface, mostly placed at the apex of very small branch- 
lets and often in twos: axis calcareous, smooth, pale flesh-red or white, crust 
scarlet. 
Plate 60, fig. 1, zoophyte, natural size. 
Subfamily II.— -GORGONIN^. 
Gorgonidae secreting an inarticulate corneous or sublapideoiis 
axis, and a semi- calcareous cortex. 
Genus II.— HYALONEMA.— Gray. 
Gorgonidte secreting an inarticulate axis made up mostlj’’ of 
siliceous threads or spicula. 
Hyalonema Sieboldi. — Simple, subcylindrical, attenuate at base, and not 
attached (?) but planted in a sponge; surface granulous and verrucose, ver- 
ruc 0 B large, truncate. 
Japan.— -jDr. Siebold. 
Genus III.— BEIAREUM.— Blainville. 
Gorgonidse having a non-jointed axis, containing calcareous 
spicula, or suberose ; poljps scattered. 
1. Briaredm gorgonideum (Blainville). — Cinereous, subramose, terete; 
branches nearly an inch thick, elongate ; axis consisting mostly of purple cal- 
careous spicula. 
West Indies.— Ellis. 
2. Briareum suberosum (Ellis,) Dana. — Eight inches high ; ramose, sub- 
dichotomous ; branches stout, subsirnple ; surface smooth ; oscules substellate ; 
axis suberose, pale red; cortex miniaceous within. 
Indian Ocean. 
3. Briareum arboreum (Pallas,) Dana, — Carnoso-suberose ; large (3 
feet) and arborescent, sparingly and lax ramose; younger branches nodose, 
with the protuberances especially polypi ferous ; polyps large; exterior surface 
red or yellow; within yellowish and suberose. 
Norwegian Sea. 
