222 



a. Polypen ganz iu der Sarcosoma znrückziebar. Briareum. 

 Polypen ohne Kelche, regelrecht im Stamme vertheilt. 



Paragorgia. Polypen mit warzenförmigen Kelchen, unregelmäs- 

 sig vertheilt. 



b. Polypen nur theilweise zurückziehbar. 

 Solenogorgia Genth. Stamm rinnen- oder röhrenförmig. 

 Semperina KölL Stamm walzenförmig. 



Gray handelt in den Ann. and Mag. nat. bist. T. V. 

 p. 405 — 408 „on some new gencra and species of Alcynoid 

 Corals in the british museum". Als neu wird dabei auf- 

 gestellt: Gen. Bus eil a (mit Rbipidogorgia occatoria M. 

 Edw. H.), Murit eil a (mit Gorg. fucosaVal. = G. albi- 

 cans Köll.), B oar eilet [B. flahellata n.), Menacella 

 (mit Gorg. reticularis Pall.), Phaeocella (mit Gorg. tu- 

 berculata Esp.); Bovella (B. ramulosa n.), Menella 

 {M. indica n. Bombay), Ligne IIa (mit Gorg. Richardi 

 Lmx.), LeuGo ella (L. cervicornis n.). Die Diagnosen 

 unseres Verf.'s lauten wie folgt. 



Bus ella Gr. Coral fan-shaped, forming an oblong frond, 

 very much branehed and closely reticulated, with a number of short 

 club-shaped branchlets diverging from the sides of the frond; bran- 

 ches and branchlet cylindrical, diverging, furcately branehed. Bark 

 thin, granulär, smooth Polype-cells ou all sides of the branches 

 and branchlets, sunken. close together, with a small round mouth. 

 Axis continuous, horny, black. 



Murit ella Gr. Coral branehed in a plane; stem much 

 compressed, broad; branches and branchlets subcylindrical , apex 

 subclavate. Bark rather thick, granulär, with a uniform smooth 

 surface. Polype-cells large, entirely sunken, scattered over the whole 

 surface of the bark, with a very small contracted linear mouth. 

 Axis of the stem and lower branches compressed, horny, of branchlets 

 cylindrical, with a horny external coat and with soft pith within. 

 B oar ella Gr. Coral branehed in a plane, fan-shaped, for- 

 ming an oblong frond with in single stem ; branches and branch- 

 lets slender, nearly of the sanie diameter, netted; branches diver- 

 ging and often inosculating, soine of the marginal branchlets free. 

 Bark thin, formed of thin scales or spicuies. Polype-cells subcylin- 

 drical, elongate, truncate, membranaceous translucent, with a circular 

 mouth with teu marginal folds and ten short valves in an irregulär 

 series on each side of the branches, diverging in different directions, 

 one, sometimes two or tbree, together. Axis continuous horny. 



Menacella Gr. Coral very much branehed, fan-shaped, 

 irregularly reticulated; stem simple. Bark very thin, formed of 



