ANTHOZOA 



25 



the fruit of the Nchmibium ; it has vesicular tabulae and 

 root-like processes to its basal plate. Hdiolitcs (fig. 4, 9), of 

 which many species are found in the Silurian and Devonian 

 limestones, is related to the recent Milleporce. The radiating 

 septa are distinct, and the tabulae regular ; the interspaces 

 between the stars are filled up with fine and regular tubes. 

 One genus of Fungidce (Palceocyclus) occurs in the Upper 

 Silurian. 



Fig. 5. 

 Secondary and Tertiary Corals (Anthozoa). 



1. Turbinolia sulcata, Lam. ; 31. Eocene, Europe. 



2. Diploctenium lunatum, Brug. ; Chalk, France. 



3. Micrabacia coronula, Goldf. ; U. Greensand, Europe. 



4. Aspidiscus cristatus, Lam. ; Cretaceous (?), Algeria. 



5. Cyclolites elliptica, Lam. ; L- Chalk, France. 



6. Parasmilia centralis, Mant. ; U. Chalk, England. 



7. Pachygyra labyrintbica, Micb. ; L. Chalk, France. 



8. Holocystis elegans, Lonsd. ; L. Greensand, Isle of Wigbt. 



9. Montlivaltia caryopbyllata, Lam. ; Great Oolite, France, 

 io. Stylina De la Becbei, M. Edw. ; Corallian, Wilts. 



11. Tbecosmilia annularis, Flem. ; Corallian, Wilts. 



The British secondary corals are not very numerous ; for 

 although specimens abound in the coral-rag districts, only 

 fourteen species are found in that formation. Altogether, 

 sixty-five species are found in the English oolites, and twenty- 



