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SUBORDER II.— ALCYONARIA. 
Genus Y. — SYMPODIUM.— H. & Ehrenberg. f 
Carnose, forming spreading, incrusting plates, and not stipi- \ 
tate ; polyps retracting into verrucse which are not armed with ? 
spicnla. ■ 
1. SvMPomuivi FULiGiNOSUM {H. Ehrenherg). — Fuliginous, 2 inches; 
tentacles quite pale, short; polyps Clines long, and expanded star 3 lines 
broad. 
Red Sea. 
2. Syaipodium cje.kxji.evm {H. Ehrenherg). — Fuliginous, tentacles bright i 
blue, small, slender. 
Red Sea. 
8. Sympodium roseum {Ehrenherg). — Suberose, of varying form, rose-co.- 
ored, 2^ to 3 lines thick; verrucse but little prominent or obsolete; tentacle.* 
white. 
St. Thomas, V/est Indies, incrusting axis of Gorgonia. 
Genus YI.— NEPHTHYA.— Savigny. 
Carnose Alcyonid^e, fruticnlose; polyps retracting into ver- 
ruese armed with spicnla. 
1. Nkphthya S.wiGsu {H. Ehrenherg). — Greenish, fruticulose; tenta- 
cles yellow, spicula of the verrucse green. 
Red Be^.—Savigny, Ehrenherg. 
Genus YII.~ ALCYONIUM. ; 
Carnose Alcyonidaa, fruticuloso-ramose, explanate and glome- 
rate, and nsually very stout stipitate ; polyps wholly retractile, 
and the zoophytes without verrucae when contracted; pedicel 
perforated to its base with the viseral tubes of the polyps. 
Arrangement of the Species. 
I, Ramose or lohulose, not becoming more firm and solid below. 
1. A. digitatum. 3. A. palmatum. 
2. A. cydonium. 4. A. stellaturn. 
