184 NATURAL HISTORY OP 



Sub-Oeder : SCLERODERMATA. 



(Madrepokaria.) 

 Animals depositing a corallum. 



Section 1 . Aporosa. Corallum solid and imperforate. 



FAMILY I. TURBINOLID^. 



Corallum solid, simple, or in colonies, with the lamellar 

 interspaces reaching to the bottom of the cavity, and per- 

 fectly free. 



Genus I. Cartophyllia, Lamarclx, in part. 



Corallum simple, obconic, with a permanently ad- 

 herent expanded base, or a more or less pointed non- 

 adherent base. Plates usually forming 6 systems, with 

 a single circle of palules. Columella composed of fas- 

 cicular, twisted, vertical plates. Ribs developed towards 

 the summit. — Gosse. 



1. C. Smitru, Harvey. " The Devonshire Cup Coral.''^ 

 Plate XIV., fig. 6. 



C. cyathus [Flem.), C. sessilis {Bellamy), ? Turbinolia 

 borealis {Dana, Flem., D. L.), Cyathina Smithii {Dana, 

 M. Edwards, P.H. C), Madrepora cyathus {E. and 8.). 



Hab. : Devon and Cornwall, Oban, Shetland, Guern- 

 sey, Irish coasts. Height | — 1 in. 



Colour of anemone, (a) Castanea : Bay or fawn, 

 lined with chestnut. Disc white. Tentacles colourless, 

 with rosy-white heads, (b) Esmeralda : as (a) but the 

 chestnut replaced by green, (c) Clara : White. 



In this species the corallum is fixed by a broad base; 

 the plates are arranged in 6 systems and 5 cycles, 

 each system being arranged as follows : 



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