408 On new Oencra and Species of Alcyonoid Corah. 



ratlior I'ar apart on the t\vo sides of the braiielies. Polypes 

 •with eii;ht tentacles. Axis cylindrical, or rather compressed, 

 soft, wood-like, and white, spiculose. 



Lignella Richardi. 

 Bark dark fulvous. 



Goryonia liicliardi, Lamx. Pol. ilex. 107; Ducliass. & Michel. Corall. 

 Antilles 29, tab. 4. tig. 1. 



JJah. West Indies. 



Leucoella. 



Coral branched, fan-like, in the same plane, compressed ; 

 branches furcate, upper side convex or angular, lower side 

 concave, smooth, barren, with a more or less wide central 

 groove. ]5ark thin and smooth. Poly})e-cells large and sphe- 

 rical, scattered or in lines on the upper surface and margin of 

 the stem and branches. Axis white, wood-like, soft, with 

 fusiform warty spicules, which are generally slender and elon- 

 gate, but some are thicker and more ventricose. 



Leucoella cervicornis. 



Coral irregularly branched ; branchlcts furcate, crowded. 

 Bark dark brown. 

 Hah. '? B.M. 



ViOA. 



Coral branched, cylindrical, or slightly compressed ; branches 

 subacute. Polype-cells occupying the whole surface, sunken. 

 Spicules of the red bark scattered, yellow. Axis placed longi- 

 tudinally. 



Vioa, Nardo, Isis, 1832. Type, Alcyoniuin asbcstinum. 



Vioa asbestina. 



Ponts sponr/ioifJes, Petiver, Grazoph. t. 22. f. 22. 



Alc^/oninm asbesfinirm, Pallas, Zooph. 344 ; Espcr, ii. tab. 5. 



Jloa asheslina, Nardo, Isis, 1832. 



Lobularia asbestina, Ehrenb. Coral. 59. 



liriarinm asbesfinum, Vorrill. 



Briarnnn subcrosum (part.), Kolliker, Icones, p. 141. 



Briurea asbestina, Duchass. & Micbol. Corall. Antilles, 15. 



Hah. West Indies. B.M. 



