SUB-CLASS I ANTHOZOA—TETRACORALLA ine 
Campophyllum, E. and H. (Fig. 118). Like the preceding, but septa not 
extending to the centre. Devonian and Carboniferous Limestone. 
Heliophyllum, Hall. Usually simple and turbinate, more rarely forming 


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\ WSK 

ee Tee 
Bie. V8. Fic. 119. 
Campophyllum com- 
pressum, Ludw.  Car- Diphyphyllum con- 
boniferous Limestone ; cinnum, Lonsd. 
Cyathophyllum heterophyllum E. and H. Middle Hausdorf, Silesia. a, Carboniferous 
Devonian ; Gerolstein, Eifel. 4, Transverse; B, Longi- Longitudinal; 6, Trans- Limestone; Ka- 
tudinal section (after Nicholson). verse section. mensk, Ural. 
dendroid colonies. Septa numerous, extending to the centre, and thickened 
on their sides by conspicuous vertical ridges (“carinae”). Devonian. 
Diphyphyllum, Lonsd. (Fig. 119). Ordovician to Carboniferous. Pholido- 
phyllum, Lindstr. Ordovician and Silurian. Lvidophyllum, E. and H. Silurian 

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oth 

My 
OATS 

Lithostrotion 
Martini, E.and H. 
Carbon. Limest. ; 
Hausdorf, Silesia. 

re » o = C 
Pic. 120. Sections of in- 
_ Omphyna subturbinata, BE. and H. Silurian limestone ; dividual corallite 
Gottland, Sweden. a, Side view ; b, Calice from above. (after Kunth). 
and Devonian. Crepidophyllum, Nich.  Craspedophyllum, Dyb. | Devonian. 
Koninckophyllum, Nich. Chonaxis, E. and H. Carboniferous.  Clisiophyllum, 
Dana. Silurian to Carboniferous. 
Omphyma, Raf. (Fig. 120). Corallum simple, conical, or turbinate ; theca 
with root-like processes. Septa numerous; the four principal septa in shallow 
