﻿Qt. 
  E. 
  TINE 
  ON 
  THE 
  WEDLOCK 
  POLIZOA. 
  59 
  

  

  peristome 
  slightly 
  raised 
  and 
  thick, 
  which 
  causes 
  a 
  slight 
  constriction 
  

   of 
  the 
  aperture 
  of 
  the 
  cell. 
  Measured 
  as 
  nearly 
  as 
  possible 
  across 
  

   the 
  mouths, 
  about 
  six, 
  or 
  six 
  and 
  a 
  half, 
  cells 
  occupy 
  the 
  space 
  of 
  a 
  

   line 
  ; 
  in 
  a 
  longitudinal 
  direction 
  about 
  two 
  and 
  a 
  half 
  cells 
  occupy 
  

   the 
  same 
  space. 
  

  

  Locality. 
  Buildwas 
  beds 
  (no. 
  40) 
  ; 
  Dudley 
  Limestone, 
  Lonsd. 
  ; 
  

   ditto, 
  Mr. 
  Longe 
  (descr. 
  Brit. 
  Assoc. 
  Bep. 
  1881) 
  ; 
  Lower 
  Ludlow 
  (?), 
  

   Ledbury 
  *. 
  

  

  Affinities. 
  It 
  is 
  a 
  difficult 
  matter 
  to 
  make 
  any 
  comparison 
  with 
  

   either 
  Goldfuss's 
  figures 
  or 
  description. 
  On 
  the 
  supposition 
  that 
  

   the 
  magnified 
  figure 
  (tab. 
  38. 
  fig. 
  17, 
  Petref. 
  Germ.) 
  of 
  Aulopora 
  

   compressa 
  is 
  enlarged 
  about 
  sixteen 
  times, 
  that 
  would 
  give 
  for 
  the 
  

   natural 
  size 
  about 
  two 
  and 
  a 
  half 
  cells 
  to 
  the 
  line, 
  a 
  measurement 
  

   in 
  nearly 
  every 
  way 
  similar 
  to 
  D. 
  consimilis. 
  As 
  regards 
  facies, 
  

   there 
  is 
  a 
  very 
  close 
  resemblance 
  between 
  the 
  Silurian 
  and 
  the 
  

   Oolitic 
  species. 
  In 
  admitting 
  so 
  much, 
  I 
  do 
  it 
  with 
  very 
  great 
  

   reluctance 
  ; 
  but 
  I 
  cannot 
  speak 
  authoritatively 
  without 
  having 
  the 
  

   means 
  of 
  comparing 
  the 
  fossil 
  described 
  by 
  Goldfuss. 
  Independent 
  

   of 
  this, 
  I 
  know 
  of 
  no 
  other 
  species 
  of 
  Palaeozoic 
  Polyzoa, 
  excepting 
  

   the 
  Stomatoporce 
  previously 
  described, 
  that 
  bears 
  so 
  close 
  a 
  resem- 
  

   blance 
  to 
  the 
  Diastoporce 
  of 
  the 
  Oolite. 
  However 
  we 
  may 
  be 
  

   disposed 
  to 
  regard 
  this 
  association 
  of 
  types, 
  either 
  favourably 
  or 
  

   unfavourably, 
  there 
  can 
  be 
  no 
  question 
  that 
  we 
  have 
  in 
  Biasto- 
  

   ■pora 
  consimilis 
  a 
  true 
  tubular 
  Diastopora 
  ; 
  and 
  all 
  the 
  Berenicea 
  

   type 
  of 
  Polyzoa 
  in 
  the 
  Silurian, 
  and 
  even 
  in 
  the 
  Carboniferous 
  rocks, 
  

   will 
  have 
  to 
  be 
  placed 
  in 
  a 
  different 
  genus. 
  Apparently 
  there 
  is 
  

   some 
  slight 
  resemblance 
  between 
  this 
  species 
  and 
  Alecto 
  confusa, 
  

   Nich. 
  (pi. 
  11. 
  fig. 
  4t). 
  The 
  specimen 
  in 
  crusting 
  a 
  coral 
  in 
  the 
  

   cabinet 
  of 
  Mr. 
  Longe 
  (Brit. 
  Assoc. 
  Bep., 
  Silurian 
  Polyzoa, 
  1881) 
  is 
  

   very 
  closely 
  allied 
  to 
  Nicholson's 
  species, 
  much 
  more 
  so 
  than 
  the 
  

   specimen 
  described 
  above. 
  As 
  I 
  cannot, 
  however, 
  separate 
  the 
  

   specimens 
  found 
  in 
  our 
  Wenlock 
  series, 
  I 
  think 
  it 
  best 
  to 
  allow 
  the 
  

   reference 
  to 
  remain 
  upon 
  record 
  in 
  the 
  hope 
  that 
  some 
  at 
  least 
  of 
  

   the 
  American 
  palaeontologists 
  will 
  be 
  able 
  to 
  establish 
  the 
  affinity, 
  if 
  

   such 
  be 
  possible. 
  There 
  is, 
  judging 
  from 
  material 
  in 
  my 
  possession, 
  

   a 
  very 
  close 
  relationship 
  between 
  American 
  Silurian 
  and 
  our 
  own 
  

   Wenlock 
  species, 
  not 
  only 
  in 
  the 
  Polyzoa 
  but 
  in 
  species 
  of 
  the 
  

   Alveolites 
  and 
  also 
  of 
  the 
  Monticulipora 
  types. 
  

  

  Ceeiopoka, 
  Goldfuss. 
  

  

  1826. 
  Ceriopora, 
  Goldfuss, 
  Petrifactions 
  of 
  Germany, 
  pp. 
  33, 
  215. 
  

  

  This 
  genus 
  was 
  established 
  by 
  Goldfuss 
  ; 
  but 
  it 
  has 
  been 
  broken 
  

   in 
  upon 
  by 
  authors, 
  and 
  many 
  of 
  the 
  species 
  have 
  been 
  placed 
  in 
  

   other 
  genera, 
  such 
  as 
  Alveolites 
  and 
  Monticulipora. 
  There 
  are, 
  

   however, 
  species 
  in 
  the 
  Silurian 
  shales 
  that 
  evidently 
  belong 
  to 
  the 
  

   Polyzoa 
  ; 
  and 
  Milne-Edwards, 
  in 
  his 
  ' 
  Silurian 
  Corals,' 
  refers 
  two 
  spe- 
  

   cies 
  to 
  this 
  class. 
  They 
  are 
  as 
  follows 
  : 
  — 
  

  

  10. 
  " 
  Favosites 
  ? 
  octjlata, 
  M'Coy, 
  Brit. 
  Pal. 
  Fos. 
  p. 
  21 
  (Ceriopora 
  

  

  * 
  School-of-Mines 
  Catalogue, 
  p. 
  119. 
  

  

  t 
  Ann. 
  & 
  Mag. 
  Nat. 
  Hist., 
  February 
  1875. 
  

  

  