﻿PHYLLOPOKA 
  IX 
  THE 
  PERMIAN 
  LIMESTONE. 
  349 
  

  

  the 
  British 
  area. 
  It 
  has 
  been 
  seldom 
  found 
  in 
  England. 
  I 
  have 
  

   one 
  example 
  from 
  Derbyshire. 
  Mr. 
  John 
  Young 
  informs 
  me 
  that 
  

   it 
  has 
  not 
  been 
  found 
  in 
  Scotland. 
  Prof. 
  M'Coy, 
  however, 
  figures 
  

   it 
  among 
  the 
  Irish 
  Carboniferous 
  fossils. 
  

  

  Good 
  examples 
  of 
  the 
  several 
  types 
  of 
  Phyllopora 
  will 
  be 
  found 
  

   figured 
  in 
  the 
  works 
  of 
  Prof, 
  de 
  Koninck, 
  Dr. 
  Toula, 
  and 
  Mr. 
  Prout. 
  

   Coming 
  to 
  Permian 
  times, 
  we 
  have 
  in 
  P. 
  Ehrenbergii 
  * 
  the 
  form 
  with 
  

   circular 
  meshes. 
  The 
  new 
  species 
  which 
  I 
  have 
  described 
  supplies 
  

   the 
  other 
  type. 
  

  

  * 
  King's 
  Perm. 
  Foss. 
  p. 
  43. 
  

  

  

  