﻿FROM 
  BAIRNSDALE 
  (gIPPSLAXd). 
  509 
  

  

  20. 
  PoRLNA 
  LARVAL1S, 
  MacG. 
  

  

  Lepralia 
  larvalis, 
  MacGillivray, 
  Zool. 
  of 
  Vict. 
  dec. 
  iv. 
  p. 
  30, 
  

   pi. 
  xxxvii. 
  fig. 
  5. 
  

  

  Porina 
  larvalis, 
  Waters, 
  " 
  Chil. 
  Bry. 
  from 
  Mt. 
  Gambier," 
  Q. 
  J. 
  

   G. 
  S. 
  vol. 
  xxxviii. 
  p. 
  269, 
  pi. 
  viii. 
  fig. 
  19. 
  

  

  Loc. 
  Living 
  : 
  Willianistown 
  (MacG.), 
  Bondi 
  Bay 
  and 
  Semaphore 
  

   (A. 
  W. 
  W.). 
  Fossil: 
  Mt. 
  Gambier. 
  

  

  21. 
  Lepralia 
  depressa, 
  Busk, 
  var. 
  

  

  Lepralia 
  depressa, 
  Bask, 
  Alar. 
  Polyzoa, 
  p. 
  75, 
  pi. 
  xci. 
  figs. 
  3, 
  4. 
  

  

  Zoarium 
  in 
  Lepralia-ioim. 
  Zooecia 
  large, 
  subhexagonal, 
  convex, 
  

   smooth, 
  aperture 
  contracted 
  in 
  the 
  middle, 
  about 
  0*10 
  millim. 
  at 
  the 
  

   widest 
  part. 
  Avicularian 
  or 
  vibraculoid 
  process 
  on 
  each 
  side 
  nearly 
  

   half 
  down 
  the 
  cell. 
  

  

  This 
  differs 
  from 
  Escliarella 
  setigera, 
  Smitt 
  (Flor. 
  Bry. 
  p. 
  58, 
  

   fig. 
  206), 
  in 
  the 
  position 
  of 
  the 
  avicularian 
  or 
  vibraculoid 
  process, 
  

   which 
  occurs 
  halfway 
  down 
  the 
  cell, 
  in 
  about 
  the 
  same 
  position 
  as 
  

   in 
  Schizoporella 
  vulgaris, 
  Moll, 
  whereas 
  in 
  E. 
  setigera 
  from 
  Florida 
  

   it 
  is 
  near 
  the 
  top 
  of 
  the 
  cell, 
  in 
  the 
  same 
  position 
  as 
  in 
  Mastigopliora 
  

   Dutertrei, 
  Aud. 
  It 
  also 
  differs 
  from 
  L. 
  depressa 
  from 
  the 
  ^Egean 
  

   Sea 
  in 
  not 
  having 
  a 
  vibraculum 
  on 
  a 
  level 
  with 
  the 
  mouth. 
  

  

  22. 
  Lepralia 
  btjrlixgtoniexsis, 
  Waters, 
  " 
  Chil. 
  Bry. 
  Mt. 
  Gambier," 
  

   Q,. 
  J. 
  G. 
  S. 
  vol. 
  xxxviii. 
  p. 
  270, 
  pi. 
  vii. 
  fig. 
  6. 
  

  

  23. 
  Lepralia 
  bairxsdalei, 
  sp. 
  nov. 
  

  

  Zoarium 
  in 
  Eschara-ioim. 
  Zooecia 
  subrectangular 
  or 
  contracted 
  

   below, 
  bounded 
  by 
  broad, 
  much 
  raised 
  lines, 
  surface 
  consequently 
  

   depressed 
  ; 
  large 
  pores 
  and 
  large 
  granulations 
  with 
  large 
  pores 
  round 
  

   the 
  edge 
  of 
  the 
  zooecium. 
  Oral 
  aperture 
  contracted 
  in 
  the 
  middle 
  

   by 
  means 
  of 
  a 
  denticle 
  on 
  each 
  side 
  some 
  little 
  distance 
  down 
  the 
  

   aperture. 
  An 
  oral 
  avicularium 
  in 
  the 
  aperture 
  or 
  just 
  below 
  it. 
  

  

  This 
  shows 
  many 
  points 
  of 
  similarity 
  with 
  Porella 
  nitidissima, 
  

   Hincks 
  ; 
  but 
  the 
  lateral 
  avicularia 
  are 
  wanting 
  in 
  the 
  present 
  species, 
  

   and 
  Hincks 
  does 
  not 
  find 
  any 
  lateral 
  contractions 
  in 
  the 
  aperture. 
  

   It 
  differs 
  from 
  Smittia 
  seriata, 
  Rss., 
  in 
  having 
  no 
  proximal 
  

   denticle. 
  

  

  24. 
  Lepralia 
  gippslaxdii, 
  sp. 
  nov. 
  Plate 
  XXII. 
  fig. 
  12. 
  

  

  Lepralia-fovm. 
  Zooecia 
  ovate, 
  surface 
  minutely 
  punctate. 
  Oral 
  

   aperture 
  almost 
  circular. 
  Ovicell 
  globose, 
  punctate. 
  Although 
  the 
  

   specimen 
  is 
  well 
  preserved, 
  there 
  are 
  so 
  few 
  characters 
  that 
  it 
  is 
  

   impossible 
  to 
  be 
  quite 
  sure 
  that 
  it 
  has 
  not 
  previously 
  been 
  

   described. 
  

  

  25. 
  Lepralia 
  foliacea, 
  Ell. 
  & 
  Sol. 
  

  

  Lepralia 
  foliacea, 
  Waters, 
  " 
  Chil. 
  Bry. 
  Mt. 
  Gambier," 
  Q. 
  J. 
  G. 
  S. 
  

   vol. 
  xxxviii. 
  p. 
  269, 
  pi. 
  vii. 
  fig. 
  3. 
  

  

  As 
  I 
  mentioned, 
  when 
  speaking 
  of 
  the 
  Mt.-Gambier 
  specimens, 
  

   there 
  are 
  two 
  varieties 
  from 
  Bairnsdale 
  (both 
  in 
  Eschara-iorm), 
  one 
  

  

  