FAMILIES AND GENERA OP THE MADEEPOEAEIA. 71 



Genus Pleueocoea, Milne-Edwards Sf Jules Saime, JEEist. Nat. 

 des Corall vol. ii. p. 601 (1857). 



Colony subdendroid, espalier-like, or massive. Corallites 

 cylindrical, short, united to the stems, whence they bud for a 

 distance, free at their summits for a variable extent. Calices 

 circular and shallow. Columella papillary, and there are pali 

 before all the septa except those of the last cycle. Septa hardly 

 exsert^ subequal, thin, close, denticulate, and granular. The wall 

 is compact, very thick, and the costse are distinct along the whole 

 height, and are close, separated by deepish grooves, straight near 

 the calice and more or less vermiculate elsewhere. Gemmation 

 lateral. Endotheca exists. Epitheca absent. 

 JDistribution. — Fossil. Cretaceous : Europe. 



II. Alliance GONIOCOROIDA. 



Astrseidae gemmantes with a dendroid or fasciculate form. Columella 

 rudimentary, granular costse. No epitheca. Endotheca exists. 



Genus Goniocora, Ed. & H. 

 Genus Rhabdocora, E. de From. 



Genus Goniocoea, Milne-Edwards 8f Jules Saime, Hist. JSTat. 

 des Corall. vol. ii. p. 604 (1857). 



The colony is dendroid. Parent corallites tall, cylindrical. 

 Offshoots by gemmation free laterally, and forming different 

 angles with the parent according to the species. Calices circular 

 and columella rudimentary. Septa not numerous, spinulose. 

 The wall is naked and has granular costse, straight and distinct 

 over the whole surface. 



Distribution'. — Fossil. Trias, Lias: Europe. Oolite: Europe 

 and England. 



Genus Ehabdocoea, F. de Fromenfel, Pal. Frcing., Terr. cret. 

 p. 432 (1872). 



Colony dendroid, in close bush-shapes. Corallites free to a 

 variable extent and generally well costulated. The calice is 

 circular and shallow. There is neither columella nor pali. Septa 

 dentated. 



Distrilution. — Fossil. Cretaceous : Europe. 



