﻿422 
  R. 
  p. 
  TOMES 
  OX 
  LO 
  WEE-OOLITE 
  MADREPORARIA. 
  

  

  Genus 
  Thecosmilia, 
  Edw. 
  and 
  Haime. 
  

  

  Thecosmilia 
  Wrighti, 
  Dune. 
  Supp. 
  Brit. 
  Foss. 
  Cor. 
  pt. 
  iii. 
  p 
  17, 
  

   pi. 
  v. 
  figs. 
  1-4 
  (1872). 
  

  

  I 
  have 
  made 
  diligent 
  search 
  for 
  this 
  species, 
  and 
  have 
  met 
  with 
  

   a 
  great 
  many 
  fragments, 
  but 
  as 
  yet 
  have 
  not 
  obtained 
  a 
  sufficiently 
  

   complete 
  specimen 
  to 
  satisfy 
  me 
  respecting 
  its 
  true 
  affinities. 
  In 
  

   the 
  transverse 
  fractures 
  of 
  some 
  of 
  the 
  pieces, 
  I 
  have 
  seen 
  something 
  

   very 
  much 
  like 
  a 
  very 
  porous 
  columella. 
  This, 
  with 
  some 
  indica- 
  

   tions 
  of 
  lateral 
  gemmation, 
  has 
  led 
  me 
  to 
  doubt 
  whether 
  it 
  will 
  not 
  

   prove 
  to 
  belong 
  to 
  some 
  other 
  genus 
  than 
  Thecosmilia. 
  The 
  acqui- 
  

   sition 
  of 
  better 
  specimens 
  is 
  necessary 
  before 
  this 
  can 
  be 
  decided, 
  the 
  

   one 
  I 
  have 
  seen 
  in 
  Dr. 
  "Wright's 
  collection 
  not 
  being 
  wholly 
  satis- 
  

   factory. 
  

  

  Thecosmili! 
  eamoba, 
  d'Orb. 
  Prodr. 
  de 
  Paleont. 
  t, 
  i. 
  p. 
  292 
  (1850). 
  

  

  One 
  specimen 
  only 
  has 
  yet 
  been 
  met 
  with, 
  and 
  that 
  was 
  taken 
  

   from 
  the 
  lower 
  reef 
  at 
  Crickley 
  Hill 
  by 
  my 
  late 
  friend 
  Mr. 
  J. 
  W. 
  

   Kirshaw, 
  F.G.S. 
  

  

  Genus 
  Conpusastr^a, 
  d'Orb. 
  

   CoNFUSASTRiEA 
  coxsobrixa, 
  Edw. 
  and 
  Haime, 
  sp. 
  

  

  ( 
  tyausastn 
  a 
  consobrina^Edw. 
  and 
  Haime, 
  Pol. 
  Foss. 
  des 
  Terr. 
  Paleoz. 
  

   p. 
  107 
  (1857) 
  ; 
  Hist. 
  Nat. 
  Cor. 
  torn. 
  ii. 
  p. 
  552 
  (1857) 
  ; 
  E. 
  de 
  From. 
  

   Introd. 
  Etude 
  Pol. 
  Foss. 
  p. 
  281 
  (1858-61) 
  ; 
  Tomes, 
  Geol. 
  Mag. 
  vol. 
  v. 
  

   1878. 
  

  

  Confusastircea 
  consobrina, 
  Ferry, 
  Mem. 
  Ool. 
  Inf. 
  de 
  Macon, 
  p. 
  23 
  

   (1862). 
  

  

  Under 
  the 
  name 
  of 
  Clausastrcea 
  eonsohrina, 
  I 
  gave 
  the 
  present 
  

   species 
  in 
  my 
  list 
  of 
  Crickley 
  corals 
  : 
  but 
  a 
  reexamination 
  of 
  the 
  

   specimen 
  and 
  comparison 
  with 
  some 
  others 
  from 
  the 
  Inferior 
  Oolite 
  

   of 
  the 
  Cheltenham 
  district, 
  as 
  well 
  as 
  with 
  two 
  other 
  species 
  from 
  

   the 
  Great 
  Oolite, 
  has 
  convinced 
  me 
  that 
  it 
  should 
  be 
  removed 
  to 
  the 
  

   genus 
  Confasastrata. 
  This 
  has, 
  indeed, 
  been 
  done 
  by 
  M. 
  Ferry 
  as 
  

   long 
  ago 
  as 
  1862; 
  but 
  his 
  paper 
  was 
  overlooked 
  by 
  me 
  when 
  I 
  was 
  

   before 
  working 
  out 
  the 
  Crickley 
  corals. 
  

  

  There 
  are 
  three 
  characters 
  in 
  this 
  species 
  which 
  deserve 
  especial 
  

   mention, 
  because 
  they 
  are 
  most 
  likely 
  generic. 
  One 
  of 
  them 
  is 
  the 
  

   existence 
  of 
  very 
  distinct 
  walls 
  between 
  the 
  corallites, 
  as 
  in 
  Isastrcea, 
  

   which 
  are 
  not 
  visible 
  until 
  the 
  calices 
  are 
  worn 
  down 
  ; 
  another 
  is 
  

   the 
  presence, 
  deep 
  in 
  the 
  calice, 
  of 
  a 
  pimple-shaped 
  columella 
  ; 
  and 
  

   the 
  third 
  consists 
  of 
  very 
  distinct 
  mural 
  costae, 
  which 
  are 
  spread 
  

   over 
  the 
  whole 
  of 
  the 
  under 
  surface 
  of 
  the 
  basal 
  plate 
  and 
  arranged 
  

   in 
  fasciae. 
  If 
  there 
  is 
  an 
  epitheca 
  on 
  the 
  common 
  basal 
  wall 
  or 
  

   plate, 
  it 
  has 
  been 
  lost 
  in 
  all 
  the 
  specimens 
  I 
  have 
  seen. 
  The 
  genus 
  

   Adelastrcea 
  of 
  Reuss, 
  from 
  the 
  Cretaceous 
  beds 
  of 
  G-osau, 
  is 
  founded 
  

   upon 
  a 
  species 
  of 
  Confusastrcea. 
  

  

  I 
  have 
  obtained 
  this 
  species 
  from 
  the 
  lower 
  reef 
  at 
  Crickley 
  and 
  

   irom 
  the 
  middle 
  reef 
  at 
  Leckhampton. 
  

  

  