610 ZOOPHYTES. 



St. Thomas, West Indies, incrusting axis of Gorgonia. 



Sympodium roseum, Ehrenb., G. xxviii., sp. 3. , Lamk., 2d ed., ii. 624, No. 3. 



NOTE. Ehrenberg also refers here the following species, which appear to be incrusting 

 Alcyonia ; and the S. roseum should probably be included in this list. 



Sympodium corcdloides, Ehrenberg (sp. 4) ; Gorgonia coraUoides of Pallas, a red sub- 

 erose incrustation around a Gorgonia, without verruca, and yellow tentacles to the polyps 

 (Pallas, Zooph., p. 192 ; Esper, ii., tab. 32, who reports it from the Mediterranean). 



Sympodium rubrum (sp. 5), Akyonium rubrum, Miiller, Icon. Zool. Dan., tab. 82, figs. 

 1-4, Anthelia rubra, Blainville. From the Norwegian Sea. Johnston, in his British 

 Zoophytes (p. 190) states that this species is only an incrusting form of the Akyonium 

 digitatum. 



Sympodium ochraceum, Ehrenb., sp. 6 : " Obducens, suberosum, ochraceum, nodos 

 in Gorgonia efficiens." West Indies. (Esper, Pflanz. ii. tab. 14.) 



massa, Ehrenberg, sp. 7. See Alcyonium cydonium. 



GENUS VI. NEPHTHYA. SAVIGNY. 



Akyonidce carnosce, fruticulosce ; polypis in verrucas spiculo-armatas 

 retractilibus. 



Carnose Alcyonidse, fruticulose; polyps retracting into verrucee armed 

 with spicula. 



The spicula of the surface, which are exsert about the polyps, ally 

 the Nephthyae to the Spoggodise ; but the latter have a membranous 

 and very open cellular structure, and the polyps are minute and not 

 retractile. Nephthy, was the name of an Egyptian goddess, and 

 hence the name of the genus, which was applied by Savigny to a 

 Red Sea species. 



1. NEPHTHYA SAVIGNII. (H. 4- Ehrenberg.) 



N. virens, fruticulosa ; tentaculis flavis, verrucarum spiculis pluribus 

 viridibus. 



