﻿268 
  A. 
  W. 
  WATEES 
  ON 
  FOSSIL 
  CHILOSTOMATOTJS 
  BEYOZOA 
  

  

  This 
  differs 
  from 
  the 
  Latdorf 
  specimens 
  in 
  having 
  two 
  suboral 
  

   avicnlaria, 
  and 
  should, 
  perhaps, 
  on 
  that 
  account 
  he 
  called 
  var. 
  biar- 
  

   mata. 
  I 
  am 
  not 
  able 
  to 
  see 
  any 
  median 
  pore 
  ; 
  but 
  the 
  character 
  

   of 
  the 
  zooecia 
  with 
  the 
  two 
  avicularia 
  is 
  very 
  similar 
  to 
  that 
  of 
  

   Microporella 
  yarraensis, 
  Waters, 
  M. 
  symmetrica, 
  W., 
  M. 
  lichenoides, 
  

   Busk, 
  M. 
  fuegiensis, 
  B., 
  &c. 
  ; 
  and, 
  further, 
  the 
  Latdorf 
  specimen 
  

   shows 
  denticulated 
  pores, 
  which 
  is 
  a 
  common 
  character 
  in 
  Micro- 
  

   porella. 
  

  

  The 
  median 
  pore 
  is 
  often 
  seen 
  with 
  difficulty 
  ; 
  and 
  as 
  justifying 
  

   my 
  having 
  placed 
  the 
  present 
  form 
  with 
  Microporella 
  I 
  may 
  men- 
  

   tion 
  that 
  in 
  Tubucellaria 
  cereoides 
  I 
  have 
  been 
  unable 
  to 
  find 
  any 
  

   median 
  pore 
  in 
  the 
  calcareous 
  wall 
  ; 
  but 
  in 
  decalcified 
  and 
  stained 
  

   preparations 
  there 
  is 
  one 
  pore 
  about 
  the 
  middle 
  of 
  the 
  cell, 
  which 
  is 
  

   then 
  readily 
  distinguished 
  from 
  the 
  other 
  pores 
  by 
  being 
  larger 
  and 
  

   the 
  contents 
  staining 
  differently, 
  showing 
  that 
  it 
  is 
  a 
  Porina, 
  a 
  genus 
  

   to 
  which 
  Tubucellaria 
  borealis 
  &c. 
  have 
  already 
  been 
  referred. 
  

  

  I 
  consider 
  Microporella 
  macropora 
  related 
  to 
  Anarthropora 
  mo- 
  

   nodon, 
  Busk, 
  and 
  Escharipora 
  stellata, 
  Smitt, 
  and 
  think 
  that 
  Anar- 
  

   thropora 
  monodon 
  and 
  Microporella 
  macropora, 
  Stol., 
  must 
  probably 
  

   be 
  considered 
  as 
  synonyms. 
  

  

  Loc. 
  Miocene: 
  Latdorf. 
  

  

  36. 
  Miceopoeella 
  iNTEOVEESA, 
  sp. 
  nov. 
  Plate 
  IX. 
  figs. 
  33, 
  34. 
  

  

  Zoarium 
  in 
  Lepralia-torm. 
  Zooecia 
  indistinct, 
  surface 
  punctured, 
  

   distal 
  end 
  somewhat 
  raised 
  ; 
  a 
  large 
  acute 
  avicularium 
  directed 
  

   inwards 
  at 
  the 
  side 
  of 
  the 
  zocecium 
  and 
  considerably 
  below 
  the 
  

   aperture. 
  Oral 
  aperture 
  rounded 
  above, 
  contracted 
  below, 
  with 
  a 
  

   straight 
  proximal 
  edge. 
  The 
  suboral 
  pore 
  is 
  very 
  indistinct 
  and 
  

   small, 
  obovate. 
  Oral 
  aperture 
  0*2 
  millim. 
  wide, 
  016 
  millim. 
  long. 
  

  

  This 
  would 
  be 
  Diporula, 
  Hincks 
  ; 
  but 
  I 
  have 
  not 
  found 
  it 
  ad- 
  

   visable 
  to 
  separate 
  it 
  from 
  Microporella. 
  This 
  species 
  differs 
  from 
  

   Microporella 
  {Diporula) 
  verrucosa, 
  Peach, 
  in 
  habit, 
  and 
  also 
  in 
  

   having 
  the 
  avicularium 
  directed 
  towards 
  the 
  oral 
  aperture. 
  

  

  37. 
  Poeltsa 
  clypeata, 
  Waters. 
  

  

  Porina 
  clypeata, 
  Waters, 
  loc. 
  cit. 
  p. 
  332, 
  pi. 
  xvii. 
  fig. 
  67. 
  

   S.W. 
  Victoria. 
  

  

  38. 
  POEINA 
  COEONATA, 
  RsS. 
  

  

  Porina 
  coronata, 
  Waters, 
  loc. 
  cit. 
  p. 
  333 
  ; 
  and 
  to 
  the 
  synonyms 
  

   there 
  given 
  must 
  be 
  added 
  

  

  Pustulipora 
  ungulata, 
  T. 
  Woods, 
  "Tert. 
  Austr. 
  Polyz.," 
  Tr. 
  E. 
  Soc. 
  

  

  New 
  S. 
  Wales, 
  1876, 
  p. 
  150 
  (4). 
  

  

  This 
  was 
  common 
  in 
  the 
  Mount 
  Gambier 
  beds, 
  also 
  from 
  Bairns- 
  

   dale 
  (Goldst. 
  coll.), 
  and 
  has 
  been 
  found 
  in 
  the 
  Schnapper 
  Point 
  beds, 
  

   Victoria. 
  

  

  