CCELENTEllATA. 
625 
Family III. GORGONID^E (M.-E.). 
Subfam. 1. GoRGONiNiE (M.-E.). 
A. Primnoacece (Val.). 
Geuera : — 1. Primnoa (Lamx.). 2. Muricea (Lamx. pro parte). 3. 
Echinogorgia (n. g\). 4. Paramuricea (KolL). 5. Acts (Diicli. & 
Mich.), k Thesea (Diicli. & Midi.). 7. Behryce (Phil.). 
B. EuniceidcB (Koll.). 
Genera : — 1. Eunicea (Lamx.). 2. Plexaura (Lam. pro parte). 3. 
Plexaurella (n. g.). 
C. GorgonacecB (M.-E. pro parte). 
Genus Gorgonia. 
1). Gorgonellacecc (Val.). 
Genera: — 1. (Val. ex parte). 2. Juncella (Val. ex parte). 
3. Verrucella (M.-E. ex parte). 4. Rusea (Diicli. & Midi.). 
Siibfam. 2. Isidin^. 
Genus Isis. 
Subfam. 3. Bbiaeeace^ (M.-E.). 
Genera: — 1. Paragorgia . 2. (Elir.). Erythro- 
QsjS\\.'). Briar cum (PX.'). 6. (Dudi. & Midi.). 
Subfam. 4. Sclebogobgiaceas (Koll.). 
Genus Sclerogorgia (Jix>\Y)==Suherogorgia (Gray). 
Subfam. 6. Melith^eacea?. 
Genera : — 1. 3Ielithcca. 2. Mopsca. 
Subfam. 6. Coballinae (M.-E.). 
Genus Cor allium (Lam.). 
Gbaffe (/. c. p. 58G) notices the chief forms of this group found by him 
among the Fiji Islands. Melitwa ochracca, which attains a longtli of G-10 
feet, has two parasitic inhabitants — a crab (allied to Menccthius according to 
Schmelz), which adheres firmly to the polype-stock, and an Ovtdum, allied 
to O. coarctaium (Ad. & B.). Both these species present the same colours as 
the polype, namely red and yellow. A distinct rose-coloured species of 
Melithcea is indicated by Griilfe. 
Vebbill (Proc. Bost. Soc. N. H. x.) gives a list of the species of this group 
inhabiting the sea of Panama, with notes on the characters of many of 
them. The known species are : — Renilla amethystina (Verr.), Gorgonia ra- 
mulus (Val.), G. aurantiaca (Verr.), G. rigida (Verr.), G. agassizii (Verr.), 
G. media (Verr.), G. stcnohrachis (Val.), Muricea echinata (Val.), M., hehes 
(y QXV.)jM.rohusta (Verr.), M. ajypressaiy eix.) , and Zoanthus dance (Leconte). 
AlCYONIDA5. 
Vebbill (Proc. Bost. Soc. N. H. x.) describes the following known species 
belonging to his suborder Alcyonacea : — Sarcophyton {Alcyoniuni) agari- 
cum (Stimps.), Nephthya thyrsoidea (Verr.), pi. 6. fig. 8, Spongodes gigantca 
(Verr.), S, capitata (Verr.), and Anthelia lineata (Stimps.), pi. G. fig. 9. ' Ho 
also indicates several other species contained in the collection of the Pacific 
exploring expedition, including two undetermined Alcyonia and a Sarco- 
dictyon. 
Rhodophyton, g. n., Gray, 1. c. p. 70G. Coral-flesh cellular, covered with a 
hard continuous calcareous coat, contracted at the base, expanded above, and 
divided into several oblong lobes or branches, covered with short cylindrical 
1866. [voL. HI.] 3 s 
