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  THE 
  PRESIDENT. 
  203 
  

  

  Table 
  XXXIV. 
  — 
  Analysis 
  and 
  Distribution 
  of 
  the 
  Forest-Marble 
  Species. 
  

  

  Classes. 
  

  

  O 
  

  

  W 
  

  

  Plantae 
  ] 
  

  

  Protozoa 
  I 
  (none). 
  

  

  Rhizopoda 
  J 
  

  

  Coelenterata 
  

  

  Echinodermata 
  

  

  Annelida 
  

  

  Crustacea 
  (none). 
  

  

  Bryozoa 
  

  

  Brachiopoda 
  

  

  28 
  genera 
  f 
  Monomyaria 
  

  

  and 
  -j 
  

   63 
  species. 
  [ 
  Dimyaria 
  

  

  Gasteropoda 
  

  

  /Ammonites 
  

  

  Cephalo- 
  ! 
  Nautili 
  1 
  

  

  poda. 
  J 
  Belemnites 
  [ 
  (none). 
  

  

  iTeuthidse 
  J 
  

  

  Pisces 
  

  

  Reptilia 
  

  

  Mammalia 
  (none). 
  

  

  65 
  

  

  1 
  

   3 
  

  

  136 
  

  

  Annelida. 
  — 
  The 
  Tubicola, 
  through 
  the 
  genus 
  Serpula 
  with 
  5 
  

   species, 
  include 
  all 
  the 
  known 
  Annelida 
  ; 
  only 
  1 
  species 
  is 
  truly 
  Corn- 
  

   brash, 
  viz. 
  S. 
  quadrata. 
  S. 
  vertebralis 
  occurs 
  in 
  the 
  Oxford 
  Clay 
  

   also 
  ; 
  and 
  S. 
  intestinalis 
  ranges 
  from 
  the 
  Great 
  Oolite 
  to 
  the 
  Coral 
  

   Rag 
  inclusive. 
  The 
  intricate 
  distribution 
  of 
  the 
  45 
  species 
  of 
  Serpula 
  

   through 
  the 
  Jurassic 
  rocks 
  is 
  not 
  easy 
  to 
  trace. 
  The 
  largest 
  number 
  

   of 
  species, 
  11, 
  occurs 
  in 
  the 
  Inferior 
  Oolite 
  ; 
  the 
  Lower 
  Lias 
  con- 
  

   tains 
  8, 
  the 
  Corallian 
  rocks 
  7, 
  the 
  Great 
  Oolite 
  7, 
  and 
  the 
  Middle 
  

   Lias 
  6 
  ; 
  the 
  remaining 
  8 
  horizons 
  are 
  variously 
  represented. 
  

   Vermicularia 
  and 
  Vermilia 
  are 
  not 
  known 
  in 
  this 
  subdivision 
  of 
  

   the 
  Jurassic 
  series. 
  

  

  Crustacea. 
  — 
  GhfpJiea 
  Birdii, 
  O. 
  rostrata, 
  and 
  G. 
  scabrosa 
  are 
  the 
  

   only 
  3 
  species 
  of 
  Crustacea 
  known 
  in 
  the 
  Cornbrash. 
  G. 
  rostrata 
  

  

  