der niederen Thiero während der J. 1868—1869. 309 



Farn. 1. AntheliadaO. Polypös produced above the surface 

 of the coral, not retractile. Spicules fusiforin or cylindrical, spinous 

 or tubercular. 



Gen. Anthelia mit 6 Sp. 



Farn. 2. Sympodiadae. Polypös and tentacles completely re- 

 tractile into the skiu-like or crustaceous coral. 



Gen. Massarella n. mit 3 Sp. (Symp. coralloides Pall., S. 

 rosaceum Ehrbg., S. verumDuch. et Mich.), Eunoella n. mit Symp. 

 gorgonioides Pall. , Sympodium Ehrb. mit 3 Sp. , Erythropodium 

 Köll. 1 Sp., Ojeda Duch. et Mich. 1 Sp. 



ß. The coral crust-like, convex, with more or less erect lo- 

 bes. The polypes on the edge of the crust or the base of the stera 

 with long cylindrical tubulär bodies; polypes retractile. 



Fam. 3. Lobulariadae. Coral with a hard, crustaceous, smooth 

 externa] coat. Polypes retractile. 



Gen. Lobularia 16 Sp., Sphaerella n. mit Ale. tub.erculosum 

 QuoyetGaim., Chlorozoa n. mit Ale. viride Quoy et Gaim., Rhodo- 

 phyton Gr. 1 Sp., Amicella n. mit Ale. amicorum Quoy et Gaim. 



See. II. Podo coral IIa. The coral pedunculated, the lower 

 portion stem-like, harren, the upper lobed or branched, with the 

 polypes on the surface. The polypes with an elongated tubu- 

 lär body. 



A. Coral with a coriaceous or crustaceous minutely granulär 

 outer surface, with more or less numerous internal spicules. Poly- 

 pes retractile or semiretractile. 



Fam. 4. Alcyoniadae. The coral fleshy, divided into lobes or 

 branches above, beariDg the polypes on all sides. Stem more or 

 less coriaceous externally. Polypes retractile. 



Gen. Alcyonium 4 Sp., Danella n. 3 Sp. (Ale. confertum Dana 

 und flexibile Quoy et Gaim.), Amocella 3 Sp. (Lobularia pauciflora 

 Ehrbg., L. poiydactyla Ehrbg., Ale. trichanthemum Dana.) 



Fam. 5. Sarcophytidae. The coral discoidal or hemisphaerical, 

 pedicellated ; stem and under surface barren, rather coriaceous, gra- 

 nulär. Polypes on the upper surface of the frond, retractile. 



Gen. Sarcophyton 3 Sp., Äreocella n. mit Ale. latum Dana, 

 Cladiella n. mit Lob. sphaerophora Ehrbg. und Ale. brachycla- 

 dium Dana. 



Fam. 6. Bellonelladae. Coral capitate ; stem thick with a co- 

 riaceous granulär outer surface, groowed, showing the tabular form 

 of the bodies of the polypes above; head hemisphaerical. Polype- 

 -cells cylindrical, with a plaited mouth. Polypes retractile. 



Gen. Bellonella Gr. 2 Sp. 



Fam. 7. Xeniadae. Coral soft and fleshy: stem simple or 



