132 
SUBORDER II.— ALCYONARIA. 
1. G. Pterogorgia quercifolia {Ehrenherg,) Dawa.— Bright yellow; 
eiglit inches high and four broad, ramulous, complanate, flabellate and lobato- 
foliaceous, subdivided nearly like the lobations of an oak-leaf, lobes nearly 
an inch wide ; nerves sterile, other parts polypiferous, oscules small (one- 
third of a line). 
2. G. Pterogorgia anceps {Linn.) Ehrenherg. — Violaceous, and also yel- 
lowish with purple margins ; two feet high, paniculate ; branches long linear^ 
generally two to two and a half lines wide and often a foot long, two-edged 
or sometimes three to four winged, with a single series of oscules along the 
edge: axis black, slightly compressed, in the branchlets wax-yellow. 
West Indies. 
3. G. Pterogorgia citrina (Esper,) Dana. — Low (four inches) ; sulphur- 
yellow, with the margin dotted with purple ; subpinnato-ramose and nearly 
flabellate; branches two-edged, branchlets one to two inches long and one 
line broad; polyps marginal in a single series; axis of branches black, of 
branchlets yellowish. 
Near Cape Florida, West Indies, Dost. Soc. JVat. Hist. — British Coast? 
4. G. Pterogorgia fasciolaris (Ehrenherg). — Low (five inches high and 
ten broad), sparingly ramose ; branches erect, simple, much compressed and 
flat throughout, four and a half inches long and one and a half lines broad; 
margin thin and uniseriately dotted with red, the polyps being uniseriate. 
West Indies. — Ehrenherg. 
.5. G. Pterogorgia thomasiensis (Ehrenherg). — Low (four inches high), 
violaceous ; sparingly ramose ; branches simple, two-edged, erect, uniformly 
three inches long, less than a line broad at apex. 
Island of St. Thomas, West Indies. — Ehrenherg. 
0. G. Pterogorgia acerosa (Esper,) jE/tren6e?*g.— -Yellowish ; ramulous, 
nearly flabellate, pinnate ; pinnules subopposite, compressed, one to one and 
a half lines broad; polyps arranged seriately along the margin, in either sin- 
gle or double series; oscules very minute (hardly one-fourth of a line long), 
and crowded ; axis of branches and branchlets nearly black. 
West Indies. 
7. G. Pterogorgia pennata (Ellis). — Yellowish, ramulous, pinnate, pin- 
nules subopposite, much compressed and complanate, one to one and a quarter 
lines broad, not pendulous, four to six inches long ; polyps marginal, in one 
or two series, large ; axis of branchlets of a very pale yellowish color. 
8. G. Pterogorgia petechizans (Pallas,) Dana. — Yellow, with the mar- 
gin dotted with purple ; one to two feet high ; flabellate and ramuloso-pinnate ; 
pinnules numerous, short (one to two inches), a line broad, nearly parallel. 
