﻿E. 
  E. 
  TOMES 
  OS 
  LOWEE-OOLITE 
  MADEEPOEAEIA. 
  409 
  

  

  42. 
  On 
  the 
  Maleepoeaeia 
  of 
  the 
  Ineeeioe 
  Oolite 
  of 
  the 
  Neigh- 
  

   botjehood 
  of 
  Cheltenham 
  and 
  Glotjcestee. 
  By 
  Eobeet 
  F. 
  

   Tomes, 
  Esq., 
  F.G.S. 
  (Read 
  May 
  10, 
  1882.) 
  

  

  [Plate 
  XVIII.] 
  

  

  Inteodttctiox. 
  — 
  In 
  1878 
  I 
  made 
  known 
  through 
  the 
  pages 
  of 
  the 
  

   Geological 
  Magazine* 
  some 
  genera 
  of 
  Madreporaria 
  from 
  the 
  In- 
  

   ferior 
  Oolite 
  of 
  Crickley 
  Hill, 
  Gloucestershire, 
  which, 
  although 
  not 
  

   new, 
  were 
  nevertheless 
  not 
  only 
  new 
  to 
  the 
  beds 
  under 
  consideration, 
  

   but 
  also 
  to 
  this 
  country 
  ; 
  and 
  I 
  at 
  the 
  same 
  time 
  increased 
  the 
  num- 
  

   ber 
  of 
  species 
  from 
  that 
  locality, 
  observing 
  that 
  the 
  paper 
  would 
  serve 
  

   as 
  a 
  basis 
  to 
  which 
  additions 
  and 
  corrections 
  could 
  from 
  time 
  to 
  

   time 
  be 
  made. 
  

  

  Since 
  then 
  a 
  very 
  extensive 
  series 
  of 
  corals 
  from 
  the 
  Inferior 
  

   Oolite 
  of 
  Gloucestershire 
  has 
  come 
  into 
  my 
  hands, 
  and 
  has 
  enabled 
  

   me 
  to 
  add 
  very 
  greatly 
  to 
  my 
  previous 
  paper, 
  not 
  only 
  in 
  the 
  num- 
  

   ber 
  of 
  species, 
  but 
  by 
  the 
  addition 
  of 
  genera 
  not 
  hitherto 
  recognized 
  

   as 
  appertaining 
  to 
  the 
  Oolite 
  of 
  England. 
  

  

  I 
  have 
  also, 
  by 
  the 
  acquisition 
  of 
  more 
  abundant 
  material, 
  been 
  able 
  

   to 
  correct 
  some 
  errors 
  into 
  which 
  I, 
  as 
  well 
  as 
  others, 
  had 
  fallen, 
  and 
  

   to 
  reduce 
  some 
  of 
  the 
  hitherto 
  acknowledged 
  species 
  to 
  the 
  position 
  

   of 
  synonyms 
  only. 
  The 
  list 
  of 
  species 
  I 
  am 
  now 
  enabled 
  to 
  give 
  is 
  

   rather 
  remarkable 
  for 
  the 
  great 
  number 
  of 
  genera 
  as 
  well 
  as 
  species 
  

   it 
  contains 
  which 
  are 
  peculiar 
  to 
  the 
  locality. 
  But 
  when 
  we 
  re- 
  

   member 
  the 
  number 
  of 
  new 
  forms 
  discovered 
  by 
  MM. 
  Edwards 
  

   and 
  Haime 
  from 
  the 
  very 
  limited 
  collection 
  submitted 
  to 
  their 
  in- 
  

   spection, 
  we 
  need 
  not 
  be 
  surprised 
  that, 
  with 
  the 
  advantage 
  of 
  much 
  

   more 
  abundant 
  material 
  from 
  the 
  same 
  locality, 
  the 
  coral-fauna 
  

   should 
  prove 
  to 
  be 
  very 
  distinct 
  from 
  that 
  of 
  other 
  corallian 
  deposits 
  

   of 
  the 
  Inferior 
  Oolite. 
  

  

  In 
  a 
  paper 
  by 
  M. 
  Milaschewitsch, 
  published 
  in 
  the 
  21st 
  volume 
  of 
  

   the 
  * 
  Paloeontographica 
  ' 
  t, 
  mention 
  is 
  made, 
  at 
  page 
  194, 
  of 
  a 
  process 
  

   of 
  intermittent 
  development 
  which 
  is 
  very 
  conspicuous 
  in 
  the 
  Montli- 
  

   valtice 
  and 
  observable 
  also 
  in 
  some 
  other 
  genera, 
  and 
  which 
  must 
  

   here 
  be 
  explained. 
  According 
  to 
  that 
  zoophytologist, 
  the 
  corallum, 
  

   under 
  certain 
  unknown 
  conditions, 
  can 
  almost 
  suddenly 
  contract 
  

   itself, 
  and 
  afterwards 
  more 
  or 
  less 
  quickly 
  expand 
  again 
  and 
  con- 
  

   tinue 
  its 
  existence 
  in 
  a 
  new 
  form. 
  This 
  M. 
  Milaschewitsch 
  

   distinguishes 
  by 
  the 
  name 
  of 
  Yerjiingungsprocess, 
  which 
  may 
  be 
  

   translated 
  into 
  a 
  " 
  process 
  of 
  rejuvenesence" 
  This 
  rejuvenescence 
  

   takes 
  place 
  in 
  very 
  different 
  degrees 
  and 
  manners. 
  Sometimes 
  it 
  

   leaves 
  behind 
  on 
  the 
  corallum 
  only 
  slight 
  marks 
  or 
  step-shaped 
  con- 
  

   strictions 
  ; 
  but 
  in 
  other 
  cases 
  the 
  constriction 
  is 
  much 
  more 
  strongly 
  

   marked, 
  so 
  that 
  the 
  new 
  form 
  is 
  perhaps 
  only 
  connected 
  with 
  the 
  

  

  * 
  Vol. 
  v. 
  July 
  1878. 
  

  

  t 
  Die 
  Korallen 
  der 
  Nattheimer 
  Schichten. 
  

   Q.J.G.S. 
  No. 
  152. 
  2f 
  

  

  