TRIBE II. C ARYOPH YLLACEA. 369 



A. POLYPIS NON SALIENTIBUS ; ZOOPHYTORUM GEMMANTIUM CALICULIS PROMINENTIBt'S. 



a. Cellis intus coronatis. 



GEJTOS I. ECMESUS. PHILIPPI. 



Caryophyllidce non gemmatce, liber a; disciformes, subtus planiuscula. 

 Coralla superne lamellis radiata et mediopapittis coronata. 



Non-budding Caryophyllidse, free; disk-shape, and nearly flat below. 

 Coralla above radiate with lamellae, and coronate with papillae about 

 the centre. 



This genus includes certain fossil species, and was instituted by 

 Philippi. As no specimens have fallen under the observation of the 

 author, it is arranged here with some hesitation. 



Philippi, Leonhard und Bronn's neues Jahrb., 1841, 662, Tert. Calabr. The genus is 

 characterized by Philippi as follows : " Liberum, disciforme, eccentricum, subtus planius- 

 culum, suborbiculare ; pagina superior papillis centralibus lamellisque divergentibus, alter- 

 nis majoribus, formatur; papillae vero centrum non occupant, sed margin! propiores 

 sunt." 



GENUS II. CYATHINA. EHEENBERG. 



Caryophyllidce non gemmates, affixce; turbinatce; polypis Caryophylliis 

 affinibus. Caliculorum lamellis fere integris, cellis intus coronatis. 



Simple, attached, turbinate; polyps like those of the Caryophylliae. 

 Coralla with the lamellae nearly or quite entire, cells coronate 

 within. 



The Cyathinse are solitary polyps, subturbinate in form, and some of 

 them two or three inches high. The calicle is either smooth or striate 

 without, and nearly goblet shape. The bottom of the cell is broad and 



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