﻿E. 
  F. 
  TOMES 
  ON 
  LOWER-OOLITE 
  1LADEEPOEA.EIA. 
  421 
  

  

  Several 
  specimens 
  have 
  occurred 
  at 
  Ravensgate 
  Hill 
  in 
  the 
  Tri- 
  

   gonia-giit. 
  

  

  The 
  above 
  four 
  species 
  are 
  quite 
  distinct 
  from 
  each 
  other, 
  and 
  

   from 
  all 
  those 
  mentioned 
  in 
  this 
  paper 
  ; 
  but 
  they 
  are 
  not 
  in 
  a 
  good 
  

   state 
  of 
  preservation, 
  and 
  their 
  specific 
  characters 
  cannot 
  be 
  ascer- 
  

   tained 
  with 
  sufficient 
  accuracy 
  for 
  determination. 
  

  

  Genus 
  Cyathophyllia, 
  cle 
  From. 
  

  

  Cyathophyllia 
  oolitica, 
  Tomes, 
  Geol. 
  Mag. 
  dec. 
  ii. 
  vol. 
  v. 
  July 
  

   1878. 
  (PI. 
  XVIII. 
  fig. 
  4.) 
  

  

  In 
  my 
  paper 
  on 
  the 
  Crickley 
  corals 
  I 
  described 
  a 
  single 
  worn 
  

   specimen 
  from 
  that 
  locality 
  under 
  the 
  above 
  name, 
  which 
  had 
  a 
  

   much 
  depressed 
  turbinate 
  form. 
  Another 
  example, 
  even 
  more 
  worn 
  

   than 
  the 
  first, 
  has 
  been 
  since 
  met 
  with, 
  which 
  has 
  a 
  much 
  more 
  

   elevated 
  form, 
  being 
  cylindrico-turbinate. 
  The 
  newer 
  cycles 
  of 
  

   septa 
  which 
  were 
  observed 
  by 
  me 
  in 
  the 
  former 
  specimen 
  to 
  have 
  

   considerable 
  irregularity 
  of 
  development, 
  are 
  very 
  distinctly 
  seen 
  in 
  

   the 
  second 
  one 
  to 
  pass 
  into 
  the 
  older 
  ones 
  as 
  they 
  approach 
  the 
  

   columella. 
  This 
  peculiarity 
  I 
  can 
  now 
  trace 
  in 
  the 
  original 
  speci- 
  

   men 
  ; 
  and 
  it 
  must 
  probably 
  be 
  regarded 
  as 
  of 
  generic 
  significance, 
  

   for 
  the 
  same 
  may 
  be 
  readily 
  observed 
  in 
  a 
  specimen 
  of 
  Cyathophyl- 
  

   lia 
  from 
  the 
  Middle 
  Lias 
  of 
  Normandy 
  — 
  the 
  species, 
  indeed, 
  which 
  

   constitutes 
  the 
  type 
  of 
  the 
  genus 
  *. 
  

  

  But, 
  before 
  the 
  creation 
  of 
  Cyathophyllia, 
  Prof. 
  Duncan 
  had 
  de- 
  

   fined, 
  under 
  the 
  name 
  of 
  Antilliaf, 
  a 
  genus 
  which 
  only 
  differed 
  from 
  

   Montlivaltia 
  in 
  having 
  a 
  large 
  columella 
  ; 
  and 
  in 
  a 
  subsequent 
  

   paper 
  + 
  he 
  called 
  attention 
  to 
  the 
  priority 
  of 
  the 
  name 
  given 
  by 
  him, 
  

   both 
  names 
  being 
  supposed 
  to 
  apply 
  to 
  species 
  having 
  similar 
  generic 
  

   peculiarities. 
  It 
  is 
  probable, 
  however, 
  that 
  the 
  above 
  indicated 
  

   septal 
  structure 
  may 
  sufficiently 
  distinguish 
  Cyathophyllia 
  from 
  

   Antillia. 
  

  

  Cyathophyllia, 
  sp. 
  

  

  A 
  species 
  of 
  this 
  genus 
  which 
  is 
  certainly 
  distinct 
  from 
  the 
  fore- 
  

   going 
  C. 
  oolitica, 
  has 
  an 
  elevated 
  turbinate 
  form, 
  a 
  small 
  spongy 
  

   columella, 
  and 
  septa 
  which 
  are 
  much 
  less 
  crowded 
  and 
  anastomose 
  

   more 
  freely. 
  

  

  It 
  is 
  much 
  worn, 
  the 
  edges 
  of 
  the 
  septa 
  being 
  all 
  destroyed, 
  and 
  

   the 
  greater 
  part 
  of 
  the 
  epitheea. 
  Enough, 
  however, 
  of 
  the 
  latter 
  

   remains 
  to 
  show 
  that 
  it 
  was 
  pretty 
  well 
  developed. 
  

  

  I 
  refrain 
  for 
  the 
  present 
  from 
  giving 
  a 
  description 
  and 
  imposing 
  

   a 
  name 
  until 
  better-preserved 
  specimens 
  are 
  obtained. 
  

  

  It 
  was 
  taken 
  from 
  the 
  reef 
  at 
  Crickley 
  Hill 
  by 
  myself. 
  

  

  * 
  Fromentel, 
  Pal. 
  Franc. 
  Cor. 
  Terr. 
  Jurass. 
  p. 
  86, 
  pi. 
  xviii. 
  fig. 
  1. 
  

   t 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  xx. 
  p. 
  28 
  (1864). 
  

   \ 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  xxix. 
  p. 
  556 
  (1873). 
  

  

  