﻿FROM 
  MOUNT 
  GAMBIER, 
  SOOTH 
  AUSTRALIA. 
  261 
  

  

  ture 
  from 
  the 
  distal 
  edge. 
  Avicularia 
  not 
  raised, 
  in 
  a 
  triangular 
  

   area, 
  opening 
  wide 
  and 
  short, 
  rounded 
  above 
  and 
  slightly 
  rounded 
  

   below, 
  with 
  a 
  straight 
  plate, 
  with 
  a 
  sinus 
  in 
  the 
  middle. 
  Oral 
  aper- 
  

   ture 
  0*ll-0-13 
  millim. 
  wide. 
  Ovarian 
  opening? 
  

  

  I 
  am 
  only 
  able 
  to 
  see 
  the 
  notch 
  in 
  the 
  avicularium 
  in 
  one 
  case, 
  

   but 
  think 
  it 
  is 
  not 
  accidental, 
  but 
  the 
  usual 
  structure. 
  The 
  lateral 
  

   position 
  of 
  the 
  avicularia 
  is 
  uncommon 
  among 
  the 
  Membraniporidse 
  ; 
  

   and 
  therefore 
  a 
  full 
  description 
  of 
  the 
  species 
  is 
  given. 
  

  

  The 
  zocecia 
  are 
  much 
  larger 
  than 
  those 
  in 
  Melicerita 
  Charlesworihii, 
  

   M.-Ed., 
  of 
  the 
  English 
  Crag; 
  but 
  the 
  avicularia 
  show 
  a 
  relationship 
  

   to 
  those 
  of 
  M 
  . 
  Charlesivorthii, 
  in 
  which, 
  however, 
  the 
  opening 
  is 
  

   oval, 
  approaching 
  to 
  circular, 
  and 
  not 
  falciform 
  as 
  incorrectly 
  de- 
  

   scribed 
  in 
  the 
  ' 
  Crag 
  Polyzoa.' 
  

  

  This 
  would 
  seem 
  to 
  be 
  related 
  to 
  Escharinella 
  elegans, 
  d'Orb. 
  pi. 
  

   683. 
  fig. 
  12, 
  Membranipora 
  stenostoma, 
  Ess. 
  (non 
  Busk), 
  Ost.-ung. 
  

   Mioc. 
  pi. 
  viii. 
  fig. 
  14, 
  some 
  of 
  the 
  Escharce 
  described 
  by 
  Hagenow 
  

   from 
  the 
  Maestricht 
  chalk, 
  and 
  Cellaria 
  ornata, 
  d'Orb. 
  Yoy. 
  dans 
  

   l'Amer. 
  merid. 
  pi. 
  ii. 
  fig. 
  10. 
  

  

  Loc. 
  Mount 
  Gambier 
  ( 
  Woods) 
  ; 
  Orakei 
  Bay 
  (Stol.) 
  ; 
  Bairnsdale 
  

   (Goldst. 
  coll.) 
  ; 
  Muddy 
  Creek 
  beds, 
  Hamilton, 
  Victoria. 
  

  

  8. 
  Canda 
  fossllis, 
  Waters. 
  

  

  Loc. 
  cit. 
  p. 
  322, 
  pi. 
  xvi. 
  figs. 
  51, 
  52. 
  

  

  9. 
  Caberea 
  Boeyi, 
  And. 
  

  

  The 
  " 
  opercula" 
  are 
  preserved; 
  and 
  the 
  fossil 
  very 
  closely 
  resembles 
  

   the 
  recent 
  G. 
  Boryi 
  ; 
  but 
  at 
  the 
  same 
  time 
  the 
  state 
  of 
  preservation 
  

   does 
  not 
  permit 
  of 
  the 
  determination 
  with 
  absolute 
  certainty. 
  

  

  10. 
  Gaberea 
  grandis, 
  Hincks. 
  

  

  Caberea 
  grandis, 
  Hincks, 
  " 
  Contr. 
  towards 
  a 
  Gen. 
  History 
  of 
  the 
  

   Mar. 
  Polyz." 
  p. 
  53, 
  pi. 
  hi. 
  figs. 
  4, 
  4a, 
  45, 
  Ann. 
  & 
  Mag. 
  Nat. 
  Hist. 
  July 
  

   1881. 
  

  

  Caberea 
  rudis, 
  Waters, 
  loc. 
  cit. 
  p. 
  322, 
  pi. 
  xviii. 
  fig. 
  86. 
  

  

  In 
  one 
  or 
  two 
  specimens 
  the 
  large 
  erect 
  avicularium 
  is 
  preserved. 
  

  

  Loc. 
  Living 
  : 
  off 
  Curtis 
  Island 
  (iT.). 
  Eossil 
  : 
  S. 
  W. 
  Yietoria, 
  

   Bairnsdale 
  (6r. 
  coll.). 
  

  

  11. 
  Menipea 
  innocua, 
  sp. 
  nov. 
  Plate 
  IX. 
  fig. 
  24. 
  

  

  Zoarium 
  consisting 
  of 
  two 
  rows 
  of 
  cells. 
  Zooecia 
  elongate 
  ; 
  aper- 
  

   ture 
  oval, 
  occupying 
  half 
  the 
  length 
  of 
  the 
  cell, 
  one 
  spine 
  on 
  the 
  

   outer 
  margin 
  above. 
  Lateral 
  avicularia 
  small 
  (?) 
  ; 
  on 
  the 
  front 
  of 
  

   the 
  cell 
  below 
  the 
  aperture 
  a 
  raised 
  avicularium 
  with 
  mandible 
  

   directed 
  laterally. 
  Dorsal 
  surface 
  showing 
  the 
  divisions 
  of 
  each 
  

   zocecium, 
  but 
  otherwise 
  smooth 
  and 
  unarmed. 
  Aperture 
  '25-0 
  '29 
  

   millim. 
  long, 
  0'20-0'22 
  millim. 
  wide. 
  

  

  The 
  lateral 
  avicularia 
  are 
  broken- 
  down 
  ; 
  and 
  therefore 
  the 
  shape 
  

   cannot 
  be 
  determined 
  ; 
  but 
  apparently 
  they 
  were 
  very 
  small. 
  

  

  The 
  front 
  surface 
  corresponds 
  very 
  much 
  with 
  M. 
  Jeffrey 
  sii, 
  Norm.; 
  

   but 
  the 
  dorsal 
  surface 
  is 
  different. 
  

  

  Q.J.G.S. 
  No. 
  151. 
  t 
  

  

  