28 



PALEONTOLOGY. 



(fig. 5, 2). The Aspidiscus (fig. 5, 4), was sent by Dr. Shaw 

 from Algeria. 



The English eocene strata contain twenty-five corals, all 

 extinct, and belonging to fifteen genera. These include an 

 Astrcea {Litharcea Websteri), which grows on the water-worn 

 flint pebbles ; a Bcdanophyllia, similar to the existing coral ; 

 a Dendrophyllia, which is the oldest member of the genus ; an 



Fig. 5. 



Secondary and Tertiary Corals {Anthozoa). 



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

 Diploctenium lunatum, Brug. ; Chalk, France. 

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

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



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



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



7. Pachygyra labyrinthica, Mich. ; L. Chalk, France. 



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



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



10. Stylina De la Bechei, M. Edw. ; Corallian, Wilts. 



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



Ocidina ; and eight species of the genus Ttirhinolia (fig. 5, 1). 

 The corals of the English pliocene are mostly Bryozoa ; only 

 four true corals have been found in the coralline crag belong- 

 ing to the genera Sphenotrochus, Flabellum, Cryptangia, and 



