﻿434 
  E. 
  E. 
  TOMES 
  ON 
  LOWEE-OOLITE 
  MADEEPOEAEIA. 
  

  

  ZOANTHAKIA 
  PERFOEATA. 
  

   Family 
  PORITIDuE. 
  

   Subfamily 
  Poeitinje. 
  

   Genus 
  Anabacia, 
  d'Orb. 
  

  

  Anaeacia 
  complanata, 
  M.-Edwards, 
  Hist. 
  Nat. 
  Cor. 
  torn. 
  iii. 
  

   p. 
  31. 
  

  

  Funcjia 
  complanata, 
  Defr. 
  Diet. 
  Sc. 
  Nat. 
  torn, 
  xviii. 
  p. 
  27 
  (1820). 
  

  

  Anabacia 
  orbulites, 
  Edw. 
  & 
  Haime, 
  Brit. 
  Foss. 
  Cor. 
  pt. 
  ii. 
  p. 
  120, 
  

   pi. 
  xxix. 
  fig. 
  3. 
  

  

  M. 
  Edwards 
  has, 
  in 
  the 
  third 
  volume 
  of 
  the 
  ' 
  General 
  History 
  of 
  

   Corals,' 
  referred 
  this 
  very 
  common 
  species, 
  and 
  no 
  doubt 
  correctly, 
  

   to 
  the 
  Fungia 
  complanata 
  of 
  Defrancc. 
  

  

  Its 
  place 
  as 
  a 
  lower-reef 
  species 
  rests 
  upon 
  a 
  single 
  specimen 
  ob- 
  

   tained 
  at 
  Crickley 
  by 
  Mr. 
  W. 
  Jenkins, 
  of 
  Cheltenham. 
  I 
  have 
  one 
  

   from 
  the 
  oolite 
  marl 
  at 
  Leckhampton 
  Hill 
  (which 
  is 
  the 
  middle-reef), 
  

   and 
  a 
  considerable 
  number 
  from 
  the 
  Lower 
  Trigonia-grit 
  (or 
  upper 
  

   reef) 
  of 
  Leckhampton 
  Hill, 
  liavensgate 
  Hill, 
  Brown's 
  Hill, 
  near 
  

   Seven-springs, 
  and 
  from 
  the 
  railway-cutting 
  between 
  Bourton-on- 
  

   the-Water 
  and 
  Notgrove, 
  on 
  the 
  Banbury 
  and 
  Cheltenham 
  railway. 
  

  

  Genus 
  Thamnastejea, 
  Le 
  Sauvage, 
  1822. 
  

  

  The 
  removal 
  of 
  this 
  genus 
  first 
  from 
  the 
  Astraeidse 
  to 
  the 
  Fun- 
  

   gidae, 
  and 
  afterwards 
  to 
  the 
  Poritidae, 
  has 
  resulted 
  from 
  the 
  sub- 
  

   stitution 
  of 
  the 
  investigation 
  of 
  internal 
  structure 
  for 
  the 
  mere 
  

   examination 
  of 
  outward 
  form 
  : 
  and 
  it 
  yet 
  remains 
  to 
  submit 
  all 
  the 
  

   species 
  at 
  present 
  included 
  in 
  the 
  genus 
  to 
  that 
  strict 
  method 
  of 
  

   inquiry. 
  After 
  the 
  careful 
  examination 
  of 
  a 
  great 
  many 
  specimens 
  

   of 
  Thamnastroa 
  arachnoides 
  from 
  Steeple 
  Ashton, 
  I 
  have 
  failed 
  to 
  

   ascertain 
  whether 
  the 
  septa 
  are 
  perforate 
  or 
  not. 
  If 
  the 
  septa 
  of 
  

   that 
  species 
  should 
  prove 
  to 
  be 
  imperforate, 
  as 
  I 
  believe 
  they 
  will, 
  

   it 
  would 
  have 
  to 
  be 
  put 
  back 
  to 
  its 
  place 
  in 
  the 
  Fungidas, 
  and 
  pro- 
  

   bably 
  all 
  the 
  other 
  species 
  which 
  have 
  been 
  placed 
  with 
  it 
  in 
  the 
  

   subgenus 
  Synastrcea. 
  

  

  Two 
  species 
  of 
  this 
  group 
  I 
  have 
  described 
  from 
  the 
  Middle 
  Lias 
  

   of 
  Oxfordshire, 
  under 
  the 
  names 
  of 
  T. 
  Etheridgei 
  and 
  T. 
  Walfordi. 
  

   The 
  T. 
  Manseli 
  of 
  Prof. 
  Duncan 
  is 
  another 
  species 
  ; 
  and 
  two 
  others 
  

   are 
  here 
  described 
  as 
  T. 
  crickley 
  ensis 
  and 
  T. 
  Duncani. 
  Probably 
  

   Thamnastrcea 
  Dumonti 
  of 
  MM. 
  Chapuis 
  and 
  Dewalque*, 
  as 
  well 
  as 
  

   the 
  T. 
  papillosa 
  and 
  T. 
  biformis 
  of 
  Eeussf, 
  are 
  referable 
  to 
  this 
  

   subgenus. 
  

  

  The 
  genus 
  Astrceomorplia, 
  proposed 
  by 
  Reuss 
  in 
  1 
  854 
  J, 
  has 
  been 
  

   subjected, 
  at 
  the 
  hands 
  of 
  Milaschewitsch 
  §, 
  to 
  the 
  same 
  critical 
  exa- 
  

  

  * 
  Foss. 
  Terr. 
  Sec. 
  de 
  Luxemb. 
  p. 
  270, 
  pi. 
  xxxviii. 
  fig. 
  11. 
  

   t 
  Denkschr. 
  der 
  Akad. 
  Wissensch. 
  Wien, 
  1867. 
  

  

  \ 
  " 
  Beitr. 
  zur 
  Char. 
  Kreide. 
  Ostalpen.," 
  Denkschr. 
  der 
  Akad. 
  Wiss. 
  Wien, 
  1854, 
  

   p. 
  127, 
  pi. 
  xvi. 
  

   § 
  Pabeontographica, 
  vol. 
  xxi. 
  p. 
  222. 
  

  

  